skysight-inc/HackerNews huggingface dataset:
>I know you're having trouble due to the costs associated with low volume, but to an ordinary purchaser your price looks like a rip-off.

Yup, being a hardware engineer makes you appreciate just how cheap some things are. Bear in mind that our motivation to develop our instrument was shock at how much the incumbents were charging! I think getting to O($500) for a quality instrument without high volume would be fairly doable with some clever design work. Getting to O($100) yes, if you could make the entire optical bench as a MEMS product and you have scale on your side (this has been done partially by SCiO).

A big limiting factor is that there aren't many perceived use-cases beyond "science". The big consumer one that everyone touts is food inspection, but outside a few very specific uses, it's a gimmick to most people. Maybe for avocado ripeness... It's also not ready for primetime yet. The real markets are places like astronomy where people don't hesitate spending thousands on glass and silicon. Brewing is another. You want hobbies which are taken up by data nerds.

The other problem is that spectrometers are overkill for a lot of stuff. Colour measurement for instance - (calibrated) colorimiter ICs are incredibly cheap. For applications where you need the resolution you either need an experienced user or software to automatically interpret the results.

There are some other off the shelf solutions: Hamamatsu make a low resolution spectrometer that's good enough for general demonstration - costs a few hundred[1]. AMS make an 18-channel "spectral" sensor which costs $10 (ish?). There have been a few Kickstarters which are trying to address this e.g. the SCiO [2]. That's about the closest we've got so far to a mass market spectrometer and it costs $299.

The problem as you say is: how many schools can afford even $100 on a device which may only get used once or twice a year? Holding a transmission grating up to your eye will solve maybe 90% of the needs of most teachers. It's enough to show different line emission from a bunch of lamps. The public labs spectrometer would do for the other %10.

[1]https://www.consumerphysics.com/scio-for-consumers/

[2]https://groupgets.com/manufacturers/hamamatsu-photonics/prod...
Ingestible Pill Can Be Controlled by Smartphone
Love this service and wrote a blog post about it with some of my blacklist and whitelist entries:
https://calebyers.com/blog/dns-ad-blocking
But no one is "colleges", if they're each acting in their own best interest. I don't see how this argument explains their behavior unless colleges are coordinating as a cartel. What's keeping them each in line?
>"OTU also has frames."

Yes but STS "frames" and OTN are layer 1 concerns. There would still never be "frame packets." It's just as egregious.

Also do you believe anyone would use DWDM for their management network? Management interfaces seldom require anything more than a few megabits of bandwidth. Burning an entire wavelength
for a management network would be pretty crazy.

In the RFO Centurylink also mentions - "A decision was made to isolate a device in San Antonio, TX from the network as it seemed to be broadcasting traffic and consuming capacity." Lightwave gear most certainly does have any concept of broadcasts.
So is there no negative news that can come from China? I am bombarded by good news from China every time I get another low-price electronics package in the mail. It's really quite out of balance. :-)
> As you point out - the fact of the matter is that an undergraduate degree in business, engineering or medicine costs the same as a degree in art, social work or childhood education and pays about 3-4 times as much.

And one of the major reasons for that is that we continue to produce an oversupply of liberal arts graduates, who then get stuck in food service rather than actually working as a teacher or psychologist, while their existence suppresses wages for anyone who can actually find work in those occupations because the employers can choose the lowest bidder from a desperate population of qualified applicants.

It's like saying corn farmers are having a hard time, so let's subsidize the production of corn. Well, then there's too much corn, and what does that do to the price of corn?
The other thing I saw in Boerne TX was a giant, like 3-semi-truck-long windmill blade on a truck, at a truck stop. The people that transport those must be a freaking miracle workers.
The harder it is to change jobs or explore opportunities in parallel, the less employers have to compete.

There was a whole lawsuit about no-poach where a group of employers chose explicitly not to compete by agreeing to not hire each other's employees. I believe the same effect can be had by simply adding friction to the structure of the market itself.

What's amusing to me is the brilliance of it. It essentially exploits egos in the workforce to suppress their own wages.
What's the difference between "gig to hire" and "6 month contract" then hire if you like them?
I use OpenDNS, but I see they are now owned by Cisco. May need to reevaluate.
I lived by a train line in Australia a few years back. Commuter trains during the weekdays, and freight trains during the night and weekends. I actually found the sound really relaxing and had some of the best sleeps ever.

Though I presume not all train lines are alike.
Social credit in exchange for roosting assistance. It's like quartering troops.
Ask HN: Being told to support IE6, any advice?
We use React + Material Design, one of our largest clients has basically told us they are going to drop us because the people who use our app are stuck on IE6, which we don't support at all.

This never came up anytime before, or during the pilot. This only came out as we started to roll out to one of their offices.

Their primary workstations are stuck on a version of Windows 2000, because their primary workflow applications do not run on anything more modern. We are on premise for them, so i can make a special build if needed. Any suggestions or ideas? I looked and dug around and can't find anything.

Electron doesn't work on Windows 2000, and no amount of tinkering with babel seems to make it work at all.
> Do you really think a society is going to function without teachers, psychologists, lawyers and artists?

This is a loaded question based on a faulty assumption. A societal shortage of people in these professions would cause their compensation to increase accordingly, incentivizing more people to enter them until an equilibrium is reached. This is basic supply and demand. Also...

> So it's individually quite stupid to major in anything _other_ than engineering, business or premed.

This is based on the faulty premise that everyone has the same skill set and can succeed at engineering, etc. as opposed to other fields where they may have a comparative advantage.
> Nordic countries have what we call "every man's right". You can own forest land, but everyone has a right to access them:

I've heard this being called "freedom to roam" in English:

https://en.wikipedia.org/wiki/Freedom_to_roam
Okay but "proprietary sdks" are not the only thing that tracks you in an app.
If a few people are doing something illegal, it's a crime. If everyone is doing something illegal, it quickly stops being a crime, or there is widespread outrage when someone is prosecuted.
You were in so much rush to spill some hate on Quebec that you failed to realize that your comment has no relationship with the point that the parent was making. Oil in Quebec has no relationship to the previous comment, the comment was how some energy-intensive industries develop in economies where energy is dirt cheap. What is dirt cheap in Quebec is electricity (made out of water, hydro-electricity), which created the aluminimum industry and lots of data center.

How is that any relevant on how Quebec doesn't want to have pipelines?
I think you're ignoring that hiring someone onto your team takes a long time and significant effort. Say you're allowed to add one person to your team. You interview 50 people and decide on the best candidate. Then you spend the next 6-months waiting on lawyers, processing visas, moving their them and their family to the US, paying for their initial housing, etc. Might not be an issue for a small company in France that hires locals but it sure is for big companies in the US.
At least "Bomb" would be short. "Full Metal Jacket" is a dreadful name in every sense, worsened only by the author's cringeworthy backstory. To paraphrase the parent, it reeks of immaturity.

I "wouldn't hold that against" the tool if it had technical merit.
You leave for a better job if your job requires more than 40 hours a week from you and you’re salary (very easy in the current tight labor market).

Also, no on call work unless you’re paid additional comp to be on call and per incident.

I find it bizarre how long people will stay in roles where they’re consistently underpaid by working overtime week after week with no additional compensation, or working off hours for free. Short term? Totally understandable. You didn’t know how bad it was when you arrived in the role, or you’re in a financial bind and need to power through. But long term? No need to be a masochist.
Right? I'd sooner spend the ~$5k with Zero G to experience microgravity.
I agree wholeheartedly with the larger point that we have a higher education bubble.

I’m skeptical both that: Lower tuition would make taxing endowments more likely and that universities believe that that’s the case.

In a world with lower tuition, endowments grow somewhat more slowly and are easier to justify because they are the thing that enables low tuition.

For a more direct set of examples of how much inertia we have, consider the way wealthy individuals use foundations to avoid taxes. I haven’t heard people crying out to tax the Gates Foundation despite its endowment growing over time because it can’t keep up with its contributions. Nor is there a massive uproar about donor advised funds which (particularly in CA) can be 80%+ taxpayer funded while effectively lacking minimum disbursement requirements as part of a larger organization.
I just fact checked, and indeed Texas does refine a whole lot:

https://en.m.wikipedia.org/wiki/Petroleum_refining_in_the_Un...
Cities should of course be building airports outside of the city!
Ask HN: Frequent job hopper? How do you build a good reputation?
I have a career that's filled with many contract and/or part-time jobs. I started out with two part time developer jobs in college. Since then, it's been mostly contract jobs.

Most of my contracts aren't the kind that pay you well for some highly specialized knowledge. They're the kind of contracts that pay low because the companies don't want to pay employer taxes, or they simply don't have available work to justify a FT hire. Being hired as a contractor, I'm not expected to grow within the company, and these are small companies so it's difficult to build a good network. I don't stay longer than 18 months at any given place.

My last four years were also fully remote jobs. On one hand, it feels better to have companies trust you well enough with more autonomy. But being less visible also lessens the chance for promotions, contacts, or career growth.

My network isn't really that great, and I have a small circle of friends, none whom can provide good leads in the industry I work in.

Recruiters contact me a lot about FT jobs but any interviews I get through them never turn into offers. All my jobs offers have started out with cold applying, shotgunning resumes. All these rejections for FT jobs make me feel uneasy, and I'm tired of the rat race. I have a non-STEM degree and don't know if it also matters or not.

So I am at a standstill on how to build up my reputation after wasting so much time not building it.

I've set aside these two options:

1. Return to college to properly get a related degree, leverage that channel to get an internship and/or a full time non-contractor position upon graduation.

2. Keep applying to larger companies for FT jobs, and interview prep. I don't know of any good reliable sources for interview practice, but I did have one good mock interview with a local developer. He's just too busy to follow up with.

I am open to other options, if you have any suggestions on my first course of action.
I think we can both agree that would have been ideal, but also far from the common case, which is why this is becoming an issue and might also contribute to an overall decline in home ownership. If there is uncertainty in the marketplace that is.
I took it around 1994 or 1995 and I don't recall any machine vision component at all. At that time, I think the syllabus was fully reacting to the AI winter.

Aside from a brief review of neural nets, it was almost all discrete and symbolic methods, e.g. prolog, search algorithms, and I think decision trees for the machine-learning portion. I almost heard more mention of statistical or numerical methods during linguistics and philosophy courses.
Much thanks to Dan for taking the time to write this up. UI dev is a deep and highly technical field, but we’re often inundated with juniorish programmers because it’s often the entry point for folks coming out of school or boot camps. We need folks writing more about these kinds of principles and less about a new way to reinvent the wheel
They seem to have reuploaded the video in YouTube channel.

https://www.youtube.com/watch?v=y0vlD7r-kTc
There was definitely some interesting stuff in the DOS virus era. One of the "Priest" / "Little Loc" viruses (can't remember which one right now) exploited a vulnerability in the tracing code in the ThunderByte "TBCLEAN" utility to detect when the virus was being run under single-step. It would "break out" of TBCLEAN and destroy data. (ThunderByte didn't correctly emulate / "virtualize" every instruction that could expose the trap flag. There was also a vulnerability to allow you to override their single-step interrupt handler.) Priest also ended up using what he learned when he found that vulnerability in the ISR trace code in "Natas" to bypass TSR anti-virus by locating the original BIOS and DOS entry points (by executing a call under single-step and emulating / virtualizing instructions that expose the trap flag to avoid detection.) I've wondered if his techniques might actually be prior art for some of the various patents on virtualizing x86.
Building a Camera That Can See Wifi
Have you considered a limited form of typescript transpilation?
This looks like a "False Dilemma" fallacy.

A third, preferable alternative is that wolfs and lambs alike get to decide over their own bodies and their own affairs.

https://en.wikipedia.org/wiki/False_dilemma
> Also do you that they would use DWDM for their management network?

Yes, in the form of the Optical Supervisory Channel (OSC), which is built into DWDM gear and generally implemented as Ethernet over SONET.

The OSC can also carry management traffic for other devices (aka datawire).

It's Ethernet, so it has broadcasts...
Houses in close proxmity airports can be designed to help minimize the noise -- I know someone that built a house in the flight path for SFO, so he used triple pane glass windows, clay roof tiles instead of the more typical asphalt shingles, some sort of soundproofing insulation in the attic, heavy solid wood exterior doors (with tight weatherstripping) among other things. Apparently the home builders in that area know what they need to do.

It works, you can barely hear the planes go by from within the house, but outside, they are loud enough to make it hard to carry on a conversation.

I think most people just get used to the noise, I used to live close to a train line - close enough that not only could I hear the train horns at the crossing, but also could hear the rumbling train cars go by and could feel the vibrations in the house.

It was super annoying for the first month or so, and then I forgot about it and never really noticed it until I had a house guest that complained about the late night noise.
None, ever. Your consciousness would include your every thought and fantasy. I would never entrust that to any third party.
> a need for degrees as a signal for baseline competence/barrier to entry

The signal is valuable. The unnatural barrier to entry is, at best, unethical.

Ideally, the barrier to the opportunity to earn the credential would not exist. It should be available to everyone worldwide.

Individual research positions should be applied for. Certain practical skills must be taught in labs, etc. But the vast majority of intellectual effort in a Harvard degree should already have all its coursework and testing available to everyone, and at reasonable cost. Otherwise it is not an open competition, it is an institution promoting socioeconomi status.
Your right the current battery technology is 29 times less efficient when it comes to storage compacity as fossil fuels. An electric plan has no hopes at flying so until solid state batteries are made this is all we have.
Has anyone looked at how g loaded these interview quizzes and brain teasers are?
I think you quoted too early and forgot to read the sentence that came directly after that.
If I had to choose just one blog or a twitter account for that hypothetical deserted island question(what is the one x-item you'd choose if stranded on a deserted island?), it would be that of John Baez without a second thought. His personal blog and tweets are absolute treasure troves for anyone interested in Math.

https://johncarlosbaez.wordpress.com
https://twitter.com/johncarlosbaez

The recent breakthrough in finding the smallest Lebesgue cover [1] was triggered by one of his blog posts about it a few years back.

1 -- https://www.quantamagazine.org/amateur-mathematician-finds-s...
California has many many clear-cuts. Just not directly on I-5.
Lower world oil prices, which in turn should weaken the power of the mostly horrible oil producing states like Russia, Saudi Arabia, Iran, Venezuela. Also Norway.

This should make the world marginally better for human rights and marginally worse for climate change.

Disclaimer: I'm just some programmer who reads the web too much.
There’s probably something regarding cultural differences between then and now.

Cameras weren’t everywhere, film processing required time, nothing went viral in the same ways it does now. This also meant people were more sheltered, expectations were lower, and maybe if you were exposed to a word of mouth black market underworld you knew a little more than those who were naive. But otherwise, even without rose colored glasses, people probably really were more polite by default (unless drunk, for which there might be a time and a place, usually).

But cultural differences aside, the technical aspects of deployment for both cable and public telephone networks followed comparable implementation models.

Originally, the household telephone handsets were proprietary appliances owned by the utility, it was installed by a technician and did not belong to the head of the household. This goes back to telegraphs, undersea cables and wire services which tie into banking networks also.

Back in the 80’s, cable television was new. Black and white television sets weren’t a complete anachronism yet, and rabbit ears were a thing. VHS and VCR appliances were also new. Things weren’t digital yet. Satellite dishes were luxurious and conspicuous to neighbors, and it was said that you could watch channles from other countries with one, including picking up European and Asian adult channels that broadcast nudity, all without any added cost. It was just available to the high gain receivers that could pick up the signals and tune into them.

Cable followed a private model, not a utility, and catered to people with enough money, who were sick of interference static and snowy noise disrupting a TV show. It appeared as trunk lines were put in place in geographic areas, but the technical details followed the telephone utilities, in that the set top box was a proprietary appliance not to be modified or replaced by the end user.

But it was all pretty low tech. Running a wire, plugging into a generic contact point. No special technicians with authorization were require to peer behind the curtain and know the black magic. No microchips, encryption or DRM that couldn’t be trivially overruled. It was mostly the same TV on the airwaves, but piped to the home on a conduit more reliable than the ambient electromagnetic spectrum. Cable companies simply “scrambled” an unpaid channel (there weren’t many to begin with) with an analog modulation that wasn’t much more complicated than interference signals introduced by music equipment, and there was a black market for descramblers that bypassed subscription fees, called hotboxes. You could also just splice into a neighbors line and pull in service for free (stealing cable). I think there’s a Simpsons episode about it.
Private companies are tracking your vehicle's plates across the country (2015)
A physics-sim virtual mouse utility for XWindows
That could be an excellent second, more involved, question. The first, super simple 2-minute sanity check question is to reverse a string. It's literally just a reverse for loop.
You can use hololo DNS changer on the Play store to point to a permanent DNS server. I did this and built my own version of pi hole... The stats are at opens3.net and so is the DNS service. Blocks 140000 domains
Amazon, to Win in Booming Rural India, Reinvents Itself
> I would personally walk away as well, its not like am [sic] some kind of superstar

You’re a perfectly-reasonable person. I also think you’d find the work those positions do frustrating.

You can’t tell a multibillion-dollar client they’re asking stupid questions. You also can’t ignore the potential problems their asking them hints at. Walking away, usually, isn’t an option. Similarly, a CEO and CFO must be able to productively field “dumb” questions from potential investors, acquirers, distributors and yes, employees. “Dumb question” shouldn’t frankly exist as a category in certain relationships. Only opportunities to improve mutual understanding.

Not every role is for everyone. And not everyone is for each role. Part of interviewing, in my opinion, is not only qualifying for fit with the company but also fit with the role. (For solely internally-facing roles, I prefer a let’s get a walk/beer/take a hike together chat.)
For those not familiar with the Seattle area, JBLM is Joint Base Lewis-McChord, where McChord is an air force base.
There are certainly ways to bypass dns filtering, but as far as I know it's the most performant, and effective, way to do it.

I wouldn't use a third party service for that, preferring instead to use pihole.