hybridfree/eevblog-posts huggingface dataset:
EEVBLOG abnormal presentation. - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: September 24, 2012, 06:37:01 pm
content: Greetings EEVBees:--See attached picture. How to I get it to quit displaying all the extra info."It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge."Enrico Fermi 1901 1954Best RegardsClear Ether

author: baljemmett
author_rank: Unknown
timestamp: September 24, 2012, 06:51:26 pm
content: Looks like a failure to load the page's stylesheets -- usually a proper refresh (Ctrl-F5) will sort it, if not perhaps restart the browser?

author: SeanB
author_rank: Super Contributor
timestamp: September 24, 2012, 07:10:43 pm
content: Yep, it does look odd, but nothing other than a CSS sheet either timed out or was delayed too long so the browser ignored it. If you look in the error log it will be there somewhere in the millions of lines.....

author: SgtRock
author_rank: Unknown
timestamp: September 24, 2012, 08:06:28 pm
content: Greetings EEVBees:--Problem solved. I found an older post where Rerouter told me to delete the Firefox cache. I had to delete Firefox and all customization. Now EEVblog is working but I have to re-customize. Drat."Three weeks in the lab will save you a day in the library every time"R. Stanley Williams 1951 -Best RegardsClear Ether

author: Monkeh
author_rank: Super Contributor
timestamp: September 24, 2012, 08:53:45 pm
content: Quote from: SgtRock on September 24, 2012, 08:06:28 pmHmm, no, you really didn't have to delete your entire profile..
Required - new nickname for WOZ - Page 1
Forum section: electronics / general

author: notsob
author_rank: Frequent Contributor
timestamp: September 26, 2012, 12:32:07 am
content: http://finance.ninemsn.com.au/newsbusiness/8538633/apples-wozniak-wants-to-become-australianperhapsOzWOZ

author: EEVblog
author_rank: Unknown
timestamp: September 26, 2012, 01:03:00 am
content: Woz is already an acceptable aussie slang name IMO.But if it must be changed, it'll be Wozza, for sure.Dave.

author: vk6zgo
author_rank: Super Contributor
timestamp: September 26, 2012, 04:10:37 am
content: If we get Wozza,it sounds like fair exchange for Rupert!

author: free_electron
author_rank: Super Contributor
timestamp: September 26, 2012, 08:19:58 pm
content: Nah, they are not going to change his name. Fr a person of his 'magnitude' they will simply rename Australia to WoZtralia...
solidifying calcium hydride leads to 'new' fule cell - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 24, 2012, 11:08:03 am
content: i don't think practicalities of this make sense for re placement of rechargeable batteryhttp://www.eetimes.com/electronics-news/4396769/Rohm-makes-smartphone-fuel-cell#

author: saturation
author_rank: Super Contributor
timestamp: September 24, 2012, 12:24:12 pm
content: Yes, its a primary cell, not rechargeable.
A good resource for Electronic Engineering Projects (including "hacks")? - Page 1
Forum section: electronics / general

author: matrixofdynamism
author_rank: Regular Contributor
timestamp: September 22, 2012, 12:35:48 am
content: I wish to expand my knowledge by looking at what people are making and studying them,What be a good spot forAnalogueDigitalEmbedded Systems andRF, Projects??A website that contains just one or more of them is highly desirable in this case.There are places where people put their projects that may have been done in the University and also those places where enthusiastic people put up the Hacks. What are the best places in your opinion? Websites and also youtube channels? Do you know of any "heaven" along these lines.

author: ElektroQuark
author_rank: Unknown
timestamp: September 22, 2012, 07:49:47 am
content: hackaday.comIt will point you to many and interesting pages and blogs for individuals with lots of stuff.

author: meanpc
author_rank: Contributor
timestamp: September 23, 2012, 08:03:22 am
content: http://instructables.com

author: amyk
author_rank: Super Contributor
timestamp: September 23, 2012, 08:59:10 am
content: Quote from: meanpc on September 23, 2012, 08:03:22 amInteresting but the factual accuracy of a lot of the articles is disputable.

author: T4P
author_rank: Super Contributor
timestamp: September 23, 2012, 09:38:35 am
content: Quote from: amyk on September 23, 2012, 08:59:10 amInstructables? Level of accuracy = 0. But great for beginners
Hey german readers, is the anti-hacking law still active ? - Page 1
Forum section: electronics / general

author: dics
author_rank: Contributor
timestamp: September 22, 2012, 11:39:53 pm
content: Hello german readers,I was wondering if you have any news about the anti-hacking law (202(c)); if it is still active in your country.http://www.theregister.co.uk/2007/08/13/german_anti-hacker_law/Has anyone ever been prosecuted because they used nmap to scan a server or they used wireshark to sniff network traffic to debug an ethernet project or they used an USB sniffer to debug an USB-enabled project ?The law seems scary and I am amazed about the lack of response (or rather the lack of opposition) from our fellow technical-inclined germans.I cannot imagine a situation in which i can debug a network problem on my server without using tcpdump or nmap or netstat for that matter.

author: ProBang
author_rank: Contributor
timestamp: September 23, 2012, 11:32:34 pm
content: Hello.You write about the § 202c StGB.It is still active. But there was a big hype about nothing...It is quite simple:If you debug a network, then it is permitted by the owner of the network. No problem there.If you debug a network/ check a project and you get data from a foreign network "accidentally", without any criminal intention, then there is no problem, too.If you sniffing out a network without permission of the owner (supporting or making possible a crime), then you go to jail.That's it. Simple enough, or?About the needed programs:They are assorted as tools. Like a hammer. You can use the hammer to drive a nail in wood. That's OK.Or you make an ugly hole in the head of your neighbour. It's the same tool, but that's not OK.If you are the manufacturer of hammers and you reclaim "Made to make the ugliest holes in human heads", then it is (unfortunately for you) prohibited to sell (or give away) your tool.Means: No Problems with software for debugging or making security-checks.Software, intentional made for sniffing/ spying and supporting criminal using, is not allowed under this law.Any difference existing in Romania?Or, please let me know, why this law is "scary"?Greetings,Hartmut
Calculators - Page 1
Forum section: electronics / general

author: Dane Bear
author_rank: Contributor
timestamp: September 22, 2012, 02:23:23 am
content: Looking for a Casio FX-411 scientific calculator. Don't know why but I think these are the easiest to use. Lost mine years ago. Does anyone have one to sell?

author: poptones
author_rank: Frequent Contributor
timestamp: September 22, 2012, 04:07:02 am
content: I'm the same way with the Sharp EL5100. Had my first one when they were new, lost track of it, bought another and lst it in a house fire, bought another and lost it when I went into the hospital. I've probably spent 500 dollars on EL5100s and I still don't have one. Cool older calculators are worth a lot of money, an EL5100 now in good shape will set you back almost 200 bucks and they cost like 60 new.Ebay has your Casio. There's one on there now for 100 bucks.

author: PeterG
author_rank: Frequent Contributor
timestamp: September 22, 2012, 05:48:12 am
content: Like this one?http://www.ebay.com.au/itm/Vintage-Casio-Scientific-Calculator-fx-411-NiB-/150900208080?pt=Vintage_Electronics_R2&hash=item23225a71d0#ht_576wt_1037Regards

author: Dane Bear
author_rank: Contributor
timestamp: September 22, 2012, 10:56:02 pm
content: Cool. I'm buying it. Searched on ebay for quitesome timeand never seen that.Thanks-Dane

author: TerminalJack505
author_rank: Super Contributor
timestamp: September 22, 2012, 11:46:45 pm
content: I'm pretty sure that's the calculator that Radio Shack re-badged as the EC-4013. I've got one of the EC-4013s and it looks exactly like the Casio calculator.

author: IanB
author_rank: Super Contributor
timestamp: September 22, 2012, 11:52:20 pm
content: Those calculators had a cute design, but I was always worried that the conductors in the flex connector would break at the hinge. Did anyone ever have that happen to them?

author: Dane Bear
author_rank: Contributor
timestamp: September 23, 2012, 01:09:57 am
content: I was too, so it never got folded. Takes kind of a hard push to get the membrane buttons to work on the folding side though.
LatticeSemi offers discounted FPGA dev boards. - Page 1
Forum section: electronics / general

author: firewalker
author_rank: Super Contributor
timestamp: September 21, 2012, 08:17:41 am
content: LatticeSemi offers discounted FPGA dev boards.http://dangerousprototypes.com/2012/09/19/latticesemi-offers-discounted-fpga-dev-boards/Alexander.

author: tom66
author_rank: Super Contributor
timestamp: September 21, 2012, 05:14:30 pm
content: You have to pay insane shipping charges though.

author: oPossum
author_rank: Super Contributor
timestamp: September 21, 2012, 05:29:57 pm
content: Available at Digikey for the same price - possibly better shipping rates.

author: Zad
author_rank: Super Contributor
timestamp: September 21, 2012, 07:28:17 pm
content: Those dev boards aren't really any cheaper than one of the many similar third party boards out there. With all due deference to Lattice, I wouldn't want to spend much time getting to know their systems and software. Xilinx and Altera have so much of the market that any newcomer would be better off looking at their parts and software.
Wi-Fi Illness Claim Doesn't Impress New Mexico CourtArthur Firstenberg, the Sant - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 20, 2012, 04:51:08 pm
content: Arthur Firstenberg, the Santa Fe, New Mexico man who sued his neighbors, claiming their Wi-Fi made him sick, has lost what might have been his final round in court. According to the Santa Fe New Mexican, state District Judge Sarah Singleton ruled that no scientific study has yet proved that electromagnetic stimulus adversely impacts personal health. While he lost the lawsuit.http://www.santafenewmexican.com/localnews/091912Firstenberg
Electron Movement in Insulators is Key to New Electronics - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: September 19, 2012, 01:28:18 pm
content: Topological insulators are exotic materials, discovered just a few years ago, that hold great promise for new kinds of electronic devices. The unusual behavior of electrons within them has been very difficult to study, but new techniques developed by a team of researchers at MIT could help unlock the mysteries of exactly how electrons move and react in these materials, opening up new possibilities for harnessing them.For the first time, the MIT team has managed to create three-dimensional “movies” of electron behavior in a topological insulator, or TI. The movies can capture vanishingly small increments of time — down to the level of a few femtoseconds, or millionths of a billionth of a second — so that they can catch the motions of electrons as they scatter in response to a very short pulse of light.Electrons normally have mass, just like many other fundamental particles, but when moving along the surface of TIs they move as if they were massless, like light — one of the extraordinary characteristics that give these new materials such promise for new technologies.The dramatic new results are published this week in the journal Physical Review Letters, in a paper by MIT graduate student Yihua Wang, assistant professor of physics Nuh Gedik and six other researchers.TIs are a class of materials with seemingly contradictory characteristics: the bulk of the material acts as an insulator, almost completely blocking any flow of electrons. But the surface of the material behaves as a very good conductor, like a metal, allowing electrons to travel freely. In fact, the surface is even more conductive than normal metals — allowing electrons to travel at almost the speed of light and to be unaffected by impurities in the material, which normally hinder their motion.The rest is here:http://www.laboratoryequipment.com/videos/2012/09/electron-movement-insulators-key-new-electronics

author: BravoV
author_rank: Super Contributor
timestamp: September 19, 2012, 02:03:36 pm
content: Which or what kind of good conductor / metal that can move electron at speed of light ? Gold ?

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: September 19, 2012, 02:35:43 pm
content: Quote from: BravoV on September 19, 2012, 02:03:36 pmAs far as I know, only in vacuum.

author: G7PSK
author_rank: Super Contributor
timestamp: September 19, 2012, 03:51:23 pm
content: Mercury telluride sandwiched between cadmium telluride also Bismuth sellenide and telluride according to wiki.http://en.wikipedia.org/wiki/Topological_insulator
How Big Pharma Hooked America On Legal Heroin - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 18, 2012, 09:59:38 pm
content: Prior to the 1990s, strong opioid medications were not routinely given for miscellaneous or chronic, moderately painful conditions; the strongest classes of drugs were often reserved for the dying. But Purdue parlayed their time-release system not only into the patent for OxyContin. They also went on a PR blitz, claiming their drug was unique because of the time-release element and implied that it was so difficult to abuse that the risk of addiction was 'under 1%.'"whats that i smell......http://motherboard.vice.com/2012/9/18/how-big-pharma-hooked-america-on-legal-heroin
New Security hole found in Microsoft Browsers - fyi - Page 1
Forum section: electronics / general

author: notsob
author_rank: Frequent Contributor
timestamp: September 18, 2012, 01:35:39 am
content: In todays Sydney Morning Heraldhttp://www.smh.com.au/digital-life/consumer-security/internet-explorers-huge-security-hole-20120918-2635k.html

author: houdini
author_rank: Regular Contributor
timestamp: September 18, 2012, 02:06:41 am
content: not really surprising.

author: Psi
author_rank: Super Contributor
timestamp: September 18, 2012, 05:11:23 am
content: I dunno there's much point posting that article, people still using IE need to be hacked, it's the only way they will learn.I mean, they've been told enough times already 'Don't use IE'.There has to be a point where we give up trying to help them.

author: bullet308
author_rank: Frequent Contributor
timestamp: September 18, 2012, 07:32:02 am
content: Internet Exploder *is* a security hole.Running the three top browsers side-by-side in a college lab setting and being the guy that helped students operate them, fully half of my job was telling kids to close out of IE and open Chrome. And like a miracle, everything would suddenly work when before it didn't. Sadly, my suggestion to remove the IE icon from the desktop was not heeded.

author: amyk
author_rank: Super Contributor
timestamp: September 18, 2012, 07:35:53 am
content: What theydon'ttell you is that 99% of these exploits are completely stopped by turning off scripting and ActiveX. IE's JavaScript interpreter is pretty buggy and lots of exploits have been found for it, but its core HTML renderer hasn't been as flaky. Since 5.x or something around there IE has come with an option to let you enable/disable scripting only for sites you trust, but most people don't know or use it. (And Firefox doesn't even have that ability by default...)

author: ampdoctor
author_rank: Frequent Contributor
timestamp: September 18, 2012, 08:19:27 am
content: If you want to learn about one seriously scary security issue that very few people know about, look up something called an evercookie. This is different than a flash cookie(LSO), which is bad enough in it's own right. But in a nutshell it's a zombie cookie that re spawns itself in various locations when you try to delete it.This nasty little bastard has some sort of java application encoded into one of the color channels of a standard ping image file and is used primarily for data mining, undetectable by anti-malware tools, and fundamentally impossible to remove short of reinstalling the operating system. While it's quietly being used by most of the big players such as Google, Facebook, etc. It's also used heavily by more nefarious websites and hackers for scouring your system for all sorts of goodies.So in short, any time you go online, just assume you're being hacked, tracked, monitored, and manipulated in any number of ways by any number of entities, no matter what browser or operating system you're using. So bear this in mind and conduct yourself accordingly with regard to what you say, do, or where you go.
weller soildering iron calibration - Page 1
Forum section: electronics / general

author: swifty01
author_rank: Newbie
timestamp: September 18, 2012, 06:53:47 am
content: Hi all. Can anyone help me I have some Weller WSD151 soldering stations that I need to change the temperature but I do not have the Weller unit to do this.Can this be done without it? I have noted that there are two pins on the PCB next to the push buttons will this make it go into update the temperature mode?

author: M. András
author_rank: Super Contributor
timestamp: September 18, 2012, 07:43:44 am
content: there are 2 soft buttons on the side right side of the front panel on the unit. i dont know if it has a lockout function maybe that prevents you to change the temp on this
Pogo Pins - Page 1
Forum section: electronics / general

author: Mike Warren
author_rank: Unknown
timestamp: September 18, 2012, 04:34:53 am
content: I'm having trouble finding pointed pogo pins.What I used to do in the past is design any boards that needed programming with a 2.54mm header. For the prototype and development I'd fit the header, but for production I'd make a jig that just clamped on the PCB pads. This used pogo pins with pointed ends and was very quick do interface and could be done for zero cost per unit.Either I'm just looking in the wrong places (or using the wrong search terms), or other methods are used now days.Any suggestions appreciated.

author: Bored@Work
author_rank: Super Contributor
timestamp: September 18, 2012, 04:41:43 am
content: http://www.test-pins.co.uk/

author: Psi
author_rank: Super Contributor
timestamp: September 18, 2012, 05:02:22 am
content: Or you can DIY hack a clothes peg like this

author: notsob
author_rank: Frequent Contributor
timestamp: September 18, 2012, 06:20:55 am
content: If you want a commercial product there is these connector assemblies from tag connecthttp://www.tag-connect.com/

author: Mike Warren
author_rank: Unknown
timestamp: September 18, 2012, 06:41:48 am
content: Thanks everyone. That Tag Connect thing looks good, but not what I'm after at the moment. I've just ordered some from test-pins.co.uk
Types of strip lighting  - Page 1
Forum section: electronics / general

author: Mint.
author_rank: Frequent Contributor
timestamp: September 19, 2012, 01:24:18 am
content: Hello!I am interested in finding out the different types of strip lighting there are and what their pros and cons are. For example RGB LED, Cold Cathode, etc.This specifically refers to a project that I want to do which is a lighting project behind shelves and such that will create a nice effect.

author: EEVblog
author_rank: Unknown
timestamp: September 19, 2012, 01:43:32 am
content: I just installed form LED strip lighting in the lab, video coming soon.The content is not entirely what you are after, but it's something.Dave.

author: RCMR
author_rank: Frequent Contributor
timestamp: September 19, 2012, 02:25:20 am
content: Those cheap LED strips are *brilliant* for sticking under shelving that might be over a work-area. They provide a lot of light for a little power and you can run your whole shop off the 12V outlet of a converted PC powersupply.I think it's important to position them (or a shade-strip) in such a way that they're not going to shine directly into your eyes though.

author: DrGeoff
author_rank: Frequent Contributor
timestamp: September 19, 2012, 03:08:24 am
content: Also not quite what you are after, but an example of using the led strips.http://www.axtsystems.com/index.php?option=com_content&view=article&id=88:radiathermal&catid=48:fixingstuff&Itemid=81It is a solution to a poorly designed wall lamp refitted with led strips.

author: akcoder
author_rank: Contributor
timestamp: September 19, 2012, 03:11:19 am
content: Quote from: RCMR on September 19, 2012, 02:25:20 amThis is exactly what I did. I bought a 5 meter strip off fleaBay for cheap. After I installed it I realized I'd like more light and got another 10 meters. This is the 10 meter strip I bought and it was only $15eBay auction: #120916631286.The 15 meters of LEDs provide an ample amount of ambient light, but you will still need a lamp on an arm for task lighting.

author: Mint.
author_rank: Frequent Contributor
timestamp: September 19, 2012, 06:52:34 am
content: What about an RGB controller?

author: SeanB
author_rank: Super Contributor
timestamp: September 19, 2012, 03:50:47 pm
content: If you want to use the stick on strips stick them down to a flat aluminium strip, normally a 20-25mm wide strip as long as the light strip. This provides a little heatsinking and a reflector.

author: akcoder
author_rank: Contributor
timestamp: September 21, 2012, 08:00:46 pm
content: Quote from: SeanB on September 19, 2012, 03:50:47 pmI haven't noticed a need to use a heat-sink. The LEDs only get a few degrees above ambient even after being on for several hours.-dan
Electrical & Electronics Organization - Page 1
Forum section: electronics / general

author: mttee2
author_rank: Contributor
timestamp: September 17, 2012, 07:38:25 pm
content: For mechanical engineer, they have IMechE.For chemical engineer, they have IChemE.What about E&E Engineer and Computer Science Engineer?Our industries are very well established, do we have an organization that represents us?

author: targ2002
author_rank: Contributor
timestamp: September 17, 2012, 07:45:19 pm
content: In the UK there is the IET, which covers both computing and electronics, If your more interested in computing then the is the BCS, or for the US there is IEEE and the ACM.

author: G7PSK
author_rank: Super Contributor
timestamp: September 17, 2012, 08:12:50 pm
content: And I was under the impression that it was "pub" for EE's and McDonald's for computer Engineers.

author: targ2002
author_rank: Contributor
timestamp: September 17, 2012, 08:41:31 pm
content: Well that is where you typically find them. Although the computer engineers around me seem to end up in kfc more often. I personally don't think that any of the professional organisations are worth joining, the cost does not support the benefit they have ever given me.

author: AndyC_772
author_rank: Super Contributor
timestamp: September 17, 2012, 08:54:44 pm
content: Quote from: targ2002 on September 17, 2012, 08:41:31 pmWhich side of the counter?
Forensic Science Not A Science At All - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 17, 2012, 01:18:20 pm
content: "Crime Lab" isn't an independent laboratory. A lot of people think that the crime lab is there to find the scientific truth (just like in CSI), when in fact they are there to serve the needs of the police and/or the prosecution. A lot of the time that means cherry picking what tests they are going to run to suit the needs presupposed by the authorities.The sloppy science is just an extension of the prevailing attitude. Labs are often run in a highly politicized environment where the emphasis is getting convictions. Most of the time the budget is tied to that as well. In fact most police run labs aren't even accredited.Until the crime lab is an independent fixture of the state that both the prosecution and defense can use it's going to be a problem.would point to certain fracture patterns or scorching marks and say that was the source, but there was never any studies done on it. It was mostly speculation, compounded by experience. Without any feedback on whether they were actually right or wrong, they developed a false sense of confidence. And in court, confidence + authority = conviction.The problem is that the legal system doesn't use scientific standards, it uses legal standards. And the law is based on experience -- it is forever looking backwards. A precident set 200 years ago is just as applicable in a court today as it was in the intervening years. Science, on the other hand, only considers the most current understanding relevant. And that's where the problems start. The law says that once a kind of forensic examination carries legal weight, then even if it is later conclusively proven scientifically to be false, it does not overturn past convictions, nor does it prevent its use in the present.these guys want reform of ithttp://www.nap.edu/catalog.php?record_id=12589
The Secret life of machines, the video recorder - Page 1
Forum section: electronics / general

author: rbola35618
author_rank: Frequent Contributor
timestamp: September 16, 2012, 03:28:25 am
content: Found neat video on the "Secret Life of Machines, the video recorder.The host looks like an older version of Dave ;-).RB

author: MikeK
author_rank: Super Contributor
timestamp: September 16, 2012, 05:54:15 am
content: I loved that series. Tim Hunkin made the videos available for free online at one point. All well worth watching.I think this is the link:http://www.exploratorium.edu/ronh/SLOM/index.htmlI don't have Quicktime installed, so I couldn't verify.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: September 16, 2012, 08:46:52 am
content: Best TV series ever made.Check out Tim's website :http://www.timhunkin.com/

author: DaveW
author_rank: Frequent Contributor
timestamp: September 16, 2012, 11:39:43 am
content: And if you're in the UK, go down to the Southwold under the pier show, really cool machines. The shows are brilliant, well worth watching

author: lewis
author_rank: Frequent Contributor
timestamp: September 16, 2012, 08:40:52 pm
content: It was this series that inspired me to become an engineer.You can download them all here:http://sciencezero.4hv.org/tslom.htm
X-rays of Neil Armstrong's boots and gloves used during the Apollo 11 mission - Page 1
Forum section: electronics / general

author: ilikepez
author_rank: Regular Contributor
timestamp: September 16, 2012, 04:46:02 am
content: One of my friends got these from his dad who worked at NASA, apparently these are the only prints. He had the originals too but gave them away a few years back.http://imgur.com/a/ZbNoCHe has x-rays of Buzz Aldrin's gloves and boots too, but I didn't have time to take pictures of that.

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: September 16, 2012, 07:27:47 am
content: very neat

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 16, 2012, 09:26:41 am
content: awesome

author: Jon Chandler
author_rank: Frequent Contributor
timestamp: September 16, 2012, 09:36:11 am
content: These may have been taken to be sure there were no pins left during sewing. I recently saw a documentary about the construction by the same people who made Playtex bras - they were the only people with the experience of working with similar materials.
Don't like Spinach don't bin, use it in your electronics. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: September 15, 2012, 10:22:51 am
content: Apparently spinach makes very good solar cells better than anything else to date.http://www.futurity.org/science-technology/%E2%80%98biohybrid%E2%80%99-solar-cell-runs-on-spinach-power/

author: amyk
author_rank: Super Contributor
timestamp: September 15, 2012, 11:14:41 am
content: Biodegradable electronics?There's something good about this, but at the same time, having to replace all your solar cells in 9 months (or even after an unusually hot day - proteins are much more temperature-sensitive than silicon) doesn't quite sit well with me.Maybe in portable, handheld devices (insert argument about planned obolesence, etc..)

author: G7PSK
author_rank: Super Contributor
timestamp: September 15, 2012, 02:47:38 pm
content: Some proteins last for a very long time, hair for instance is found on mummies 5000 years old, leather is another one that comes to mind some fungus spores can exist for hundreds of years and still grow at the end of that time so can many bacteria and viruses, so as long as the protein used in the solar cells is stable and prevented from oxidizing there should be no reason not to expect a long life from them.
Only In Daveland Fire Tornado  - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 19, 2012, 12:34:07 pm
content: http://www.wptv.com/dpp/news/world/fire-tornado-video-today-show-features-australian-outback-video-of-fiery-phenomenon

author: EEVblog
author_rank: Unknown
timestamp: September 19, 2012, 12:50:13 pm
content: We have or weird stuff like Morning Glory Clouds:http://en.wikipedia.org/wiki/Morning_Glory_cloudThey can be up to a measly 1000km longDave.
newbie with an interesting question - Page 1
Forum section: electronics / general

author: tron9000
author_rank: Frequent Contributor
timestamp: September 12, 2012, 10:24:21 pm
content: wotcha folks.My girlfriends TV ("Murphy" brand 28" standard flat screen) has been acting funny for a while. You push the standby button on the remote and the standby light goes out. After about 5 minutes the light comes back on, and no picture. Press standby again and then wait again. Keep pressing till standby light goes green and picture appears.it takes about 10 mins to just turn the f-ing thing on!whilst the standby light is out, yo can here a faint whine coming from the telly, like something is charging up.After just watching Dave's video on repairing those samsung screens (interesting vid, got some of those at work, could prove beneficial if and when they die), could my telly be suffering the same problem. Flaky caps needing longer charge time due to loss of electrolyte and not being able to hold charge?cheers

author: tom66
author_rank: Super Contributor
timestamp: September 12, 2012, 10:26:57 pm
content: Pretty much you described a common symptom of bad caps. As the TV warms up, the ESR of the capacitors drop and the TV can start working again. Since it is a 28" TV, it might be a Luxor/Harwa chassis, on which bad caps are very common.

author: Psi
author_rank: Super Contributor
timestamp: September 12, 2012, 10:31:08 pm
content: Yes, i would be very suspicious of bad caps inside.Best to repair them while the TV does actually work sometimes, since that means there is nothing else wrong (no blown fets or IC's).As the caps die they put more and more stress on other components until something gives.(except in rare situations were the power supply design is such that it protects itself from further damage)Another issue you can get with TVs turn on/off problems is CFL lighting in the room.Sometimes it can interfere with the IR remote signal and even cause the TV to turn on/off randomly.But im 99.9% sure your problem is bad caps.

author: tron9000
author_rank: Frequent Contributor
timestamp: September 13, 2012, 09:20:32 pm
content: cheers guys! just wanted to check before I go rummaging around and possibly break it and have one upset girlfriend!

author: Mechatrommer
author_rank: Super Contributor
timestamp: September 14, 2012, 03:14:43 am
content: Quote from: tron9000 on September 13, 2012, 09:20:32 pmthats the interesting part of the question i guess.
WikiLeaks Blames US Stance On Assange For Embassy Attack - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: September 13, 2012, 04:09:24 pm
content: Greetings EEVBees:--Boy, I am sure glad that these openess advocates are or the right side of history, otherwise I would be worried.http://www.telegraph.co.uk/news/uknews/9540728/WikiLeaks-blames-US-stance-on-Julian-Assange-for-Libyan-embassy-attack.html--Nobody has yet figured out how to blame Bush for this, but it is early days yet. I will report back if anyone on the left or in the mainstream media, actually blames the people who advocated for and did the killing. Expiration time of statements by the US State Dept. now approaching 5, minutes."Get ready, little lady. Hell is coming to breakfast."Chief Dan George 1899 1981Best RegardsClear Ether

author: poptones
author_rank: Frequent Contributor
timestamp: September 13, 2012, 07:05:38 pm
content: I really don't see the point? This seems like gossip.Wikileaks is. If wikileaks wasn't, everything there could still be leaked via newsgroups, ftp sites, torrents and tweets. Whether or not anyone thinks this is good or bad, or what they think of the motives or personalities behind such leaks, is fairly well irrelevant.
Livestream with ISS Spacelab - Page 1
Forum section: electronics / general

author: ProBang
author_rank: Contributor
timestamp: September 13, 2012, 01:06:46 pm
content: Atwww.youtube.com/spacelabstarts a livestream to the ISS in just 1h 45 minutes (16:50 CET).You can see, zero-G-Experiments with jumping spiders an bacteria.The stream is hosted.Chat allows live Questions.Perhaps that's interesting for someone...
DMCA Short Comings Suing Reviewers of Products  - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 12, 2012, 01:57:52 pm
content: america never learns dose itDo you know what is crazier than sending DMCA notices to a site like Lendink which doesn't host any content? It's when an author threatens to sue book reviewers over trademarks. Jazan Wild, a comics creator, is sending out threatening emails to any and all book blogs who review a recently published book called Carnival of Souls.http://www.the-digital-reader.com/2012/09/11/author-sues-book-reviewers-over-trademark-infringement/

author: poptones
author_rank: Frequent Contributor
timestamp: September 12, 2012, 02:15:37 pm
content: This is one idiot abusing the law. I fail to see how that somehow reflects on "America."

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 12, 2012, 02:25:44 pm
content: simple america government are bought by media outfit (MPAA)https://www.techdirt.com/articles/20120120/14472117492/mpaa-directly-publicly-threatens-politicians-who-arent-corrupt-enough-to-stay-bought.shtmlhell, they even threatened dave over his back to future inspired shirts

author: poptones
author_rank: Frequent Contributor
timestamp: September 12, 2012, 02:37:07 pm
content: What does that have to do with someone abusing trademark law?

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 12, 2012, 02:42:17 pm
content: have you been living under a rock, hollwood is the major abuser imagery property laws

author: poptones
author_rank: Frequent Contributor
timestamp: September 12, 2012, 03:01:23 pm
content: That has nothing to do with the title of this threadDMCA Short Comings Suing Reviewers of Productsor of the example you cited. So if that's not the focus of the discussion, fine...Can you cite any examples where "Hollywood" has shut down the production or distribution of a "competing" film?I really don't see where Hollywood shutting down unauthorized online distribution of their films is a "shortcoming" of the DMCA. I have an assload of movies and tv shows, I don't buy DVDs or Blu Rays, but I don't see any "abuse" there.Millions of people are in jail over drug crimes, and a great many of them are non violent offenders. We have created such a fetishized culture surrounding children that even theimplicationthat someone might have, someday, done something that another person would find questionable is enough to, literally, destroy someone's life. This goes on every day and I dare say it affects us all a lot more than "Hollywood" going after a few torrent sites. Where's the outrage?

author: ftransform
author_rank: Frequent Contributor
timestamp: September 12, 2012, 04:54:19 pm
content: you have to be smart to prosper in the jungle that is the states.best way to stay out of trouble is to think like a criminal.
Spell Check fun - Page 1
Forum section: electronics / general

author: vk6zgo
author_rank: Super Contributor
timestamp: September 11, 2012, 04:22:27 am
content: The spell check on this site looks like it was devised by someone who has been hiding in a cave for the last 20 years!The name Google is translated to the command,"Go ogle!"OK,there are alternatives:- Goggle,Googly,& Gogol!Wiki suggestions are:-Viki,Niki,Riki & Wini.Wikipedia gives you:-wiped,wimped,kipped,wicked,& whippedIpad gives you:-IPA,Pad,Ida,Paid,Oped.Put the hyphen in,& for I-pad, you get:- I'd,IPA,Oped,Pad,& Upped.Note: some of the suggestions are not even real words.I'm not complaining,though,it's nearly as much fun as making Microsoft Sam say stupid or vulgar things!

author: SeanB
author_rank: Super Contributor
timestamp: September 11, 2012, 04:38:22 am
content: There is a spell check? I use the one built into Firefox, though it has some very annoying Americanisms, but I can add customised words to it.

author: slateraptor
author_rank: Frequent Contributor
timestamp: September 11, 2012, 04:52:13 am
content: Quote from: SeanB on September 11, 2012, 04:38:22 amDitto.

author: Bored@Work
author_rank: Super Contributor
timestamp: September 11, 2012, 04:58:10 am
content: Quote from: SeanB on September 11, 2012, 04:38:22 amJust download the British spell checker dictionary add-on (stiff upper lip required while downloading). And for extra convenience there is an add-on called dictionary switcher. It allows to quickly switch between dictionary languages and to set language defaults per site.

author: Unknown
author_rank: Unknown
timestamp: September 11, 2012, 02:40:42 pm
content: Quote from: Bored@Work on September 11, 2012, 04:58:10 amIf you Brits have such a mastery of English, how the hell do you explain this annoying spice person? It needs subtitles or better still deportation.

author: SeanB
author_rank: Super Contributor
timestamp: September 11, 2012, 03:48:16 pm
content: You have Kim Dotcom........... we have Julius..............Will swap for Julian..........................................................

author: david77
author_rank: Frequent Contributor
timestamp: September 12, 2012, 08:33:55 pm
content: Whoever's currently got that Dotcom person: You can keep him, we certainly don't want him back
IEEE-754 floating point:  EXAM problem - Page 1
Forum section: electronics / general

author: Spikee
author_rank: Frequent Contributor
timestamp: September 11, 2012, 08:19:16 pm
content: So for a test that i have tomorrow i have to know Dec to IEEE-754.My decimal number is : -31.25So: 31 in binary = 1111125 in binary = 11001so i become:11111 , 11001shift number = 4 ( E )so i become 1,1111 11001E=127+E = 131 (8 bits)in binary: 1000 0011My sign = 1 cuz its negativeso in total:S=1E= 127+4 = 131 = 1000 0011T= 32-8-1 = 23bit : 1111 11001 (13 zero's)but when i look at an online converter from DEC to IEEE-754 i get:S=1E=127+4 = 131 = 1000 0011T= 111101 +(17 zero's)What am i dooing wrong ... :S

author: dfnr2
author_rank: Regular Contributor
timestamp: September 11, 2012, 10:43:35 pm
content: The fractional part is not 25, it's 0.25=1/4 , or .01 binary. Just like 1/10 = 0.1 and 1/100 = 0.01 dec, 1/2=.1(b2) and 1/4=.01(b2).Also, the MSB of the mantissa is always 1, so it's implied, and left out to get an extra bit of precision:-31.25 = (-) 31 + 1/4= (-) 11111.01= (-) 2^4 * 1.111101==> 1 (127+4) : (1).111101000000...==> 1 1000011 11110100000...Which appears to match what you are getting from the calculatorLook to break down any fractional portion you get as a binary fraction. They will probably give you something easy, with only a couple of bits set, so look for combinations of 0.5, 0.25, 0.125, 0.0625, 0.03125.On converting decimal to binary fractions, you will see after some examples, you can quickly convert most of them in your head by simple observations.You can see right away, the number of digits gives you the lowest non-zero set bit in the fraction. So, .xxxx5 means the binary fraction has form .xxxx1. So, you can mentally construct the fraction by recognizing the fractional components, recognizing high bits and low bits using the above observation, or also using the above observation, realizing that if the binary fraction is .xxxx1 (decimal 0.xxxx5), then you can multiply the decimal fraction by 32 to get a decimal integer, which converts to the binary bits to the right of the point, if your are more comfortable working with integers.

author: Psi
author_rank: Super Contributor
timestamp: September 11, 2012, 10:51:14 pm
content: Isn't this forum a wonderful place
Interesting BGA parts - Page 1
Forum section: electronics / general

author: cksa
author_rank: Regular Contributor
timestamp: September 09, 2012, 05:29:19 am
content: Hi all,Working on a pcb with an FPGA and some DDR2 ram on it, and they come in BGA packages. Since the FPGA is costly, and I have not had experiences with reflowing BGA's (only QFN's and single row LGA's), I am obviously concerned about it.What I want to do, is make a separate pcb with a random BGA part on it. At the moment I am looking at some of TI's Stellaris Cortex M3 chips which come in a 0.8mm pitch BGA. I can make a simple breakout board with it, and use it to practice reflowing/alignment methods, as well as verifying pin connections by programming the chip.I wonder though.....does anyone know of some interesting chips to play around with that come in BGA (>0.8mm pitch) packages?

author: JonnyBoats
author_rank: Regular Contributor
timestamp: September 10, 2012, 03:24:01 am
content: You might like to try something simple and interesting like TI's non-contact temperature sensor :http://www.ti.com/product/tmp006&DCMP=hpa-tmp-tmp006&HQS=Other+BA+tmp006-bHere is a blog post and video showing how to solder it with a hot air gun:http://dangerousprototypes.com/2012/03/01/workshop-video-bga-revisited/
GoDaddy outage affecting eevblog? - Page 1
Forum section: electronics / general

author: gxti
author_rank: Frequent Contributor
timestamp: September 10, 2012, 09:43:41 pm
content: https://twitter.com/GoDaddy/status/245213898683318272Looks like this is affecting eevblog.com, at least for me, but it looks like the registration isn't through GoDaddy so maybe you can switch to someone else easily.

author: EEVblog
author_rank: Unknown
timestamp: September 10, 2012, 09:50:55 pm
content: Yes, sorry.I believe fxdomains.com I use are a GoDaddy reseller. They are down too.The forum is up (obviously) from Oz.Dave.

author: ModemHead
author_rank: Frequent Contributor
timestamp: September 10, 2012, 09:56:43 pm
content: Yes, eevblog.com stopped resolving in my corner of the net (US, ATT Southeast) a few hours ago. Had to put an entry in my local hosts file to get here.Edit: Seems to be working now...

author: ErikTheNorwegian
author_rank: Frequent Contributor
timestamp: September 10, 2012, 10:24:11 pm
content: It worked fairly OK here in norway, a little slow, only nags was the the webpage was upside down.. the fault caused the internett signal not being turn around when it crossed the equator....

author: Chipmunk
author_rank: Contributor
timestamp: September 10, 2012, 10:27:07 pm
content: Yup, had to do the hosts trick here in the UK too to get here.Someone remind me to REMOVE that entry when this is all over or I'll swear when it won't resolve later LOL

author: Monkeh
author_rank: Super Contributor
timestamp: September 10, 2012, 10:51:05 pm
content: And this, folks, is why DNS is meant to be redundant. Using two nameservers sitting in the same rack is not beneficial.

author: gxti
author_rank: Frequent Contributor
timestamp: September 10, 2012, 11:16:40 pm
content: They weren't in the same rack, just a little too closely interconnected by software. Sort of like how one Amazon EC2 region goes down completely once or twice a year despite being a massive operation. If you want truly redundant DNS, buy hosting from two totally separate providers. It's cheap and DNS doesn't change that much!

author: Wartex
author_rank: Frequent Contributor
timestamp: September 10, 2012, 11:18:28 pm
content: Quote from: EEVblog on September 10, 2012, 09:50:55 pmGoDaddy support SOPA, switch to namecheap.com

author: ModemHead
author_rank: Frequent Contributor
timestamp: September 10, 2012, 11:33:00 pm
content: Amidst Outage, GoDaddy Moves DNS to Competitor VeriSign

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: September 11, 2012, 12:26:11 am
content: GoDaddy is horrible.I moved my domain management to VentraIP (aussie company), because I couldn't deal with GoDaddy's shitful user interface on their website.

author: Monkeh
author_rank: Super Contributor
timestamp: September 11, 2012, 12:27:09 am
content: Quote from: gxti on September 10, 2012, 11:16:40 pmEither way, total fail.

author: G7PSK
author_rank: Super Contributor
timestamp: September 11, 2012, 07:33:43 am
content: I could not get in last night at all. Went to bed in the end, all is ok today so I will get my fix.
Twitter to RSS with embedded images - Page 1
Forum section: electronics / general

author: McMonster
author_rank: Frequent Contributor
timestamp: September 09, 2012, 04:38:16 pm
content: Does anyone know any way to get RSS feed from Dave's Twitter but with images embedded directly into the feed? I've found the API link for RSS, but most of the interesting stuff comes with pictures and it's annoying to do more clicks to see them. And yes, I'm pretty anti-social-stuff person, it's not really worth registering for me.
So i found this water cooling kit ... - Page 1
Forum section: electronics / general

author: T4P
author_rank: Super Contributor
timestamp: September 08, 2012, 09:08:26 pm
content: And i know what to do! Well obviously not cool down my desktop ... that doesn't need itI have a mirror with 2 compartments below and nicely divided portions, i thunk for a moment ... AHA! I can use some thermal insulationWell that's it, all that for about 27.6USDGoes without saying i have enough fans to create a shitstorm here, but i'm thinking of using just a 8cm fan with the intake facing outwards ( bad idea? )Or a GPU fan (because it's a raw impeller, isn't it?) but i'm also thinking of finally making a use of my 75mm blowerAlright, check back a few months later.
I need a button - Page 1
Forum section: electronics / general

author: dics
author_rank: Contributor
timestamp: September 08, 2012, 09:24:15 am
content: I need a rotating potentiometer and I don't know how to describe it in the parametric search of Farnell.I want to turn it into one direction and when it reaches the end of the rotation I want it to have an OFF function.Something like this but with an OFF function :Help

author: Psi
author_rank: Super Contributor
timestamp: September 08, 2012, 09:30:42 am
content: there should be an option in the search for pots with a switch.

author: dics
author_rank: Contributor
timestamp: September 08, 2012, 09:34:28 am
content: If there is any, I can't find it. Tried Mouser too but with no luck either.So the name I am looking for is "Potentiometer with switch" ?

author: Rerouter
author_rank: Super Contributor
timestamp: September 08, 2012, 09:35:47 am
content: i believe they are known as a detented potentiometer,

author: dics
author_rank: Contributor
timestamp: September 08, 2012, 09:37:40 am
content: Oh darn, Mouser has them named as "Switch Potentiometer" but Farnell has no such filter

author: Psi
author_rank: Super Contributor
timestamp: September 08, 2012, 09:37:59 am
content: Quote from: Rerouter on September 08, 2012, 09:35:47 amna, that just means they go click,click,click as you rotate them. ie, have fixed positions. 25 detents for example

author: AndyC_772
author_rank: Super Contributor
timestamp: September 08, 2012, 09:42:05 am
content: Try this:linkJust go to the Farnell site, browse passive components > potentiometers, then search within results for "switch".

author: dics
author_rank: Contributor
timestamp: September 08, 2012, 09:45:53 am
content: That's it !Thank you for your help, guys.Didn't know Farnell has this "search within a selected set" functionLearning something everyday