How to break a lamp filament by non contact method - Page 1
Forum section: electronics / projects

author: nidal
author_rank: Newbie
timestamp: March 10, 2015, 01:16:36 pm
content: Please help me to break the filament of 2.5 Volt torch bulb when it is switched on and kept 6 inches apartThe thing is that, a switched on torch bulb should blow off when it is kept closer to a "copper pot" kept 6 inches apart. I don't know whether a strong magnetic field will give the result. But the problem is how to magnetize a copper pot to that extend?, an alternating supply give to a copper pot may develop magnetic flux around it? Is it enough to break lamp filament? Or do I need to wind a copper coil inside that vessel to get that result?It is for an illusion. But the torch is not under our control !!!!(A flash light with incandescent lamp driven by two 1.5V dry batteries). This is a test done by the people who are going to buy this copper potI could not find any way to make such a thing with any scientific methods!!!! This is a big question for science.I have got some RF discharge circuits, Electronic magnetic pulse generators, DC electro magnets, AC electromagnets etc. I don't know these things really worksIf somebody could give me a right way of doing this will be very helpful.

author: oldway
author_rank: Super Contributor
timestamp: March 10, 2015, 01:53:36 pm
content: The first thing to do is to change your glasses.

author: free_electron
author_rank: Super Contributor
timestamp: March 10, 2015, 02:27:08 pm
content: it's an illusion ... test done .. by people buying the pot..sounds like someone wants to run a scam on copper pot buyers ...

author: codeboy2k
author_rank: Super Contributor
timestamp: March 10, 2015, 02:32:39 pm
content: what does this even prove (to the buyers? )I'm not getting the purpose of this illusion (blow the filament of a lamp when brought within 6" of copper pot ) ?? what?

author: Marco
author_rank: Super Contributor
timestamp: March 10, 2015, 02:33:09 pm
content: Why are you screaming?I have the feeling that anything which can put enough force on the filament at 6 inches to break it from Lorenz force alone can probably cause a lot more problems.

author: cyr
author_rank: Frequent Contributor
timestamp: March 10, 2015, 02:51:00 pm
content: But it'sa big question for science!!!. Big questions require big fonts, apparently.A bigger question in my mind is how breaking light bulbs is a selling point for copper pots.

author: Refrigerator
author_rank: Super Contributor
timestamp: March 10, 2015, 02:56:20 pm
content: It's to show that it's real copper and that copper is the most thermally conductive thing in the damn universe ! it's easy to blow a bulb up just put a crapload of power into it so that it blows. When you get it near to the pot you just push a switch to pop it.

author: AndyC_772
author_rank: Super Contributor
timestamp: March 10, 2015, 02:58:34 pm
content: Google... google... ah, here we go, this exact question has been asked before on other forums, and the trail leads to:QuoteLink:http://rationalwiki.org/wiki/Rice_puller

author: max_torque
author_rank: Super Contributor
timestamp: March 10, 2015, 03:07:50 pm
content: Quote from: cyr on March 10, 2015, 02:51:00 pmI reckon it's a double scam. He's trying to sell people LED kitchen lights by demonstrating how vulnerable normal filament bulbs are to the influence of cooking utensils........

author: nidal
author_rank: Newbie
timestamp: March 10, 2015, 03:19:53 pm
content: Rather than going deep into the subject for why it is used, give us a good idea that how can it be done?I bet you, so far nobody given us a circuit which can simply kill an incandescent lamp flash light.It should be portable to hide inside the pot...How to to give that much of energy to a simple copper pot for long duration?anybody can do it??? Give me step by step plans...IT is not nonsense its a Challenge !!!!If it succeeds, I will get USD 160000 for the design!!!!!!!

author: AndyC_772
author_rank: Super Contributor
timestamp: March 10, 2015, 03:24:37 pm
content: No. Let's talk about how such a device might be usedfirst.If its use is legal, and there's that much money available, then hire a professional at normal commercial rates to design the device for you.Asking random strangers on the internet to cheerfully design something for you, for free, so you can pocket a fat pile of cash, is taking the p*ss.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 10, 2015, 05:10:27 pm
content: Quote from: nidal on March 10, 2015, 03:19:53 pmactually i can, but first tell me the person or organizer that will give out the money for the competition winner...

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 10, 2015, 05:40:54 pm
content: Quote from: nidal on March 10, 2015, 03:19:53 pmI have a marvelous invention, alas it is too long to fit in this margin; pray tell, how much of the 160000 do I get if I reveal it to you?Tim

author: c4757p
author_rank: Super Contributor
timestamp: March 10, 2015, 05:49:07 pm
content: Quote from: nidal on March 10, 2015, 03:19:53 pmYou get six figures for our design? And this is supposed toencouragepeople?Just hit the lamp with a hammer.

author: tszaboo
author_rank: Super Contributor
timestamp: March 10, 2015, 06:00:55 pm
content: Quote from: nidal on March 10, 2015, 03:19:53 pmJust wire me half the money, and I'll give you a presentation how to scam people. You might even get a TAX deduction for "consultation".

author: German_EE
author_rank: Super Contributor
timestamp: March 10, 2015, 09:00:44 pm
content: Congratulations to Nidal, this is the first EEVBlog I can read without my glassesI would build a magnetron and power supply inside the copper pot then poke the magnetron output port through a small hole. Power supply could be a problem though.

author: Seekonk
author_rank: Super Contributor
timestamp: March 10, 2015, 09:27:36 pm
content: I should try that some time. A really large magnetic pulse to stress the filament and pull it apart. I used to make magnetizers to make plastic sheet magnets. 20,000A, those welding cables would jump. And those wouldn't fit in a pot! Interesting to find the resonance of a filament. An AC magnetic field could stress it since the DC on the filament forms a magnet.

author: elgonzo
author_rank: Unknown
timestamp: March 10, 2015, 09:45:27 pm
content: Go ask CERN... they just upgraded their LHC... it should now also be able to break a lamp filament into pieces...Btw, CERN is in Switzerland, so your hard-earned dollars should be pretty safe there...

author: MK
author_rank: Regular Contributor
timestamp: March 10, 2015, 10:10:32 pm
content: The original poster than then invest in some smaller font sizes...

author: CatalinaWOW
author_rank: Super Contributor
timestamp: March 10, 2015, 10:31:36 pm
content: You have answered your own question. Since it is an illusion that is being created, create the illusion that the lamp is breaking. Many ways to do that, several that can be purchased almost complete in the appropriate stores. Of course it will cost you $160,000 dollars to get the list of approaches. For a larger fee I can narrow down the list to which approaches will give the best accuracy in achieving 6.0000 inches.

author: dannyf
author_rank: Super Contributor
timestamp: March 11, 2015, 01:00:56 am
content: QuoteUse "the Force"?

author: jlmoon
author_rank: Unknown
timestamp: March 11, 2015, 01:18:36 am
content: I need some good target practice, lemme shoot the light with my .45..., shoot I can make it disappear. Guaranteed to work!

author: jlmoon
author_rank: Unknown
timestamp: March 11, 2015, 01:21:28 am
content: Quote from: CatalinaWOW on March 10, 2015, 10:31:36 pmNothing like precision.

author: BlueBill
author_rank: Regular Contributor
timestamp: March 11, 2015, 02:09:03 am
content: OP's posted this all over the net, it's to fake a Rice Puller test. A popular scam in India.http://ricepuller.com/test/http://www.thenakedscientists.com/forum/index.php?topic=54441.0

author: Richard Crowley
author_rank: Super Contributor
timestamp: March 11, 2015, 02:40:24 am
content: The more I read about this the more absurd it appears.Are these people chronic drug addicts?Do they have any functional neurons remaining?They make the tinfoil hat crowd look like geniuses.

author: TerraHertz
author_rank: Super Contributor
timestamp: March 11, 2015, 03:03:06 am
content: This is like audiophoolery on meth.I have only one question, and I'll pay(1) US$600,000 to the first satisfactory(2) answerer.(3)WHY DO SOME PEOPLE WANT SO BADLY TO PULL RICE?(4)(1) 'Pay' in the imaginary sense.(2) Some conditions apply.(3) The answer is very important, for Science.(4) Font size in the spirit of OP's post - for the blind.

author: codeboy2k
author_rank: Super Contributor
timestamp: March 11, 2015, 02:39:49 pm
content: Quote from: BlueBill on March 11, 2015, 02:09:03 amBlatantly talking about making some bullshit item that will fake a test that a buyer wants, so that they can scam the buyer and make money.The buyer wants to test it with a torch. The OP wants to fake it, so that the buyer thinks it's a real "rice puller"The other side of the coin is : why the fook anyone (in India, obviously) wants a rice puller to begin with ??

author: BlueBill
author_rank: Regular Contributor
timestamp: March 11, 2015, 03:45:32 pm
content: Rice Puller Arrested.http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/rice-puller-arrested/article4451121.eceScammed out of Rs22, what is that 35cents?Every culture has its "Rice Puller" crowd. It's the Indian version of free energy.http://www.quora.com/What-is-the-whole-concept-behind-the-Rice-Puller-commonly-known-as-RP-in-IndiaI'm more curious about how or why they made up a bunch of tests for a bullshit device.http://rice-puller.com/index.php?mode=thread&id=12526

author: codeboy2k
author_rank: Super Contributor
timestamp: March 11, 2015, 05:17:04 pm
content: Oh, I read the article, it said Rs22 lahk. What's that? so, I check WikipediaA lakh or lac (/?læk/ or /?l??k/; abbreviated L) is a unit in the Indian Numbering Systemequal to one hundred thousand (100,000; Scientific notation: 105). In the Indian Numbering System, it is written as 1,00,000.So, 22 * 100,000 = 2.2 Million Rupees, or $35,049 USD according to Google.That's worth an arrest.

author: BlueBill
author_rank: Regular Contributor
timestamp: March 11, 2015, 05:32:28 pm
content: Quote from: codeboy2k on March 11, 2015, 05:17:04 pmThat's a lot of money, amazing how the buyers must do zero research before dropping that kind of cash. I still don't know what a Rice Puller is supposed to do for the end user.

author: codeboy2k
author_rank: Super Contributor
timestamp: March 11, 2015, 06:03:47 pm
content: Quote from: BlueBill on March 11, 2015, 05:32:28 pmin just my few times reading about it because of this thread, I've come to the conclusion that it's purely market driven (or having the appearance of a market).I think the scammers go to great lengths (including setting up web sites and all these obscure "tests") in order to make it appear that the "rice puller" is something that is highly sought after, therefore worth a great deal of money. So the victim is willing to part with their life savings to have the opportunity to sell it to someone else for a profit.

author: LaserSteve
author_rank: Super Contributor
timestamp: March 11, 2015, 08:41:03 pm
content: For 46,000 USD + shipping my former employer will sell you the needed pulsed ND:YAG laser at ~350 mJ Energy and 0.75 nanoseconds pulse width. They will even give me a small four figure commission. But you will have to provide Optical Density 4 Safety glasses for your entire audience. The laser head might even fit in your copper pot. You could snake the umbilical cable down your sleeve. How you explain why your arm jumps with the cable, how you explain the presence of the green aiming beam, and how you ensure the bulb is at the focal point are YOUR problem. The cable is carrying 3000V for ~ 256 microseconds at well over a Kilo Ampere, to drive the flashlamp. If you miss, the air will form a small glowing hot plasma with a clicking sound, which is damn impressive. Does a nice job of forming a nearly painless plasma on your fingers if you miss, provided your not at the focal point.. (1)(2)(3)The laser will certainly smack the filament into plasma, even if slightly defocused.LOL.......(1) Four U 19" Rack capacitor bank is optionally backpack mountable.(2) probably not exportable to India without a NATO ITAR license, and of COURSE I'm joking.(3) Safety Class IV 1064 nm "Avoid Direct , Indirect and Specular Relection", Not a toy.Steve

author: amyk
author_rank: Super Contributor
timestamp: March 11, 2015, 10:04:04 pm
content: This has to be the mostproject I've seen on this forum.It's different from the audiophools/religion-metaphysical/free energy/etc. stuff, because while it's easy to see why someone would want better sound/feel better/more energy, I still don't know what the point of pulling rice is.