skysight-inc/HackerNews huggingface dataset:
Batteries aren't going to cut it. The last I checked batteries are an expensive source of power even if you can charge them for free. The cost of the battery / cycles it can deliver is already more than the cost of electricity in most places. We need a major breakthrough in storage before renewables are more than a way to reduce fossil fuel use in powerplants. (You still need the plants, just not as much fuel for them.)

There is also somewhat of a use case for renewables for powering things that can make do with highly unreliable power. Consider, for example, a desalination plant. The heart of the plant is pumping water through membranes--but do you really need to do that? Lets build our plant differently, build a storage system high enough up that gravity provides the pressure. When you have power you run the pumps to fill the storage system, when you don't have power you don't run the pumps. You need bigger pumps and you need a big storage tank but it can be done.

Or flip the scenario--don't pump the seawater in the first place. Place your desalination plant on the ocean floor and use your pumps to extract the fresh water. In this case you need fresh water storage underwater rather than salt water storage up high.
This page explains it a bit more, and gives a demo:

https://docs.withorbit.com/

It looks like a flash card widget that you can embed in your blog. Honestly I have no idea what the context is for needing this, perhaps the authors could point to a real-world use case? I don't understand what the "Forgotten" and "Remembered" buttons do, or why a new question pops up when I click one. It seems to loop forever through different cards in a random pattern. This page doesn't do a great job of explaining the project from a 50-foot level, and the homepage is even worse at that.
Wouldn’t a sphere be a problem? I can imagine a lot of unintentionally rolling downhill.
I'd reply explaining in depth why that's an unreasonable approach, with painstaking care taken to make it sound like I assume they just haven't thought of, or aren't familiar, with these factors.
Noah Smith has an article on Substack arguing that economists have largely failed to produce useful research on climate change, in part because of a preoccupation with carbon taxes to the exclusion of other research topics. The article is subscription only (edit: not true, see reply below), but his four big points are these:

* First, academic economists have basically ignored the topic. A survey of top economics journals found that, out of 77,000 total articles published, only 57 (0.074%) were about climate change.

* Many of the most cited papers have turned out to be crap, with basic calculation and data coding errors the authors have had to publish corrections for. Smith argues that this is partly because economists don't collaborate with other researchers much, especially natural sciences like climate change.

* The most important model for integrating climate change into macroeconomic analysis is the DICE model created by Richard Nordhaus. But the DICE model has big problems, the most important of which is that, due to discounting of future economic effects, it basically ignores the welfare of future generations. The DICE model also assumes that preventing climate change will be very expensive, and hasn't adjusted for recent technology advances on that front.

* Last, economists have been obsessed with carbon taxes, and haven't dealt with how politically unpopular they are, especially in international negotiations. This is, IMO, similar to how economists love to promote free trade, saying that the losers can be compensated via money from the overall economic gains, leaving everyone better off, and ignoring that this never, ever actually happens.

I'm in the camp that thinks that economists haven't earned a ton of credibility on the specific topic of climate change. Our best shot, IMO, is massive R&D efforts and CO2-removal geoengineering (especially wave-powered olivine weathering, as promoted by Project Vesta). Accompanied by crippling taxes on heavy emissions industries, but I think people will have an easier time accepting those if it's clear that governments are pursuing alternatives to taxes too.
> Most companies (including open-source companies) actually have both open-source and proprietary software, but the proprietary software is often hidden inside private repos. The difference with Timescale is that we have made the source code for our proprietary software available (on Github), even allowing users to modify it (eg "right to repair), and made all of our software free (ie no paid software features).

So I personally like your company, but I find these sorts of marketing speak responses obnoxious. Your communications strategy here is causing brand harm, not benefit.

1) You have an open source core, with proprietary components.

2) Open source adopters get a crippled product.

3) You have a custom license for the proprietary components, which is designed to allow people to make some use of those, but is poorly-written ambiguous (preventing many types of commercial use), non-open-source compatible (preventing integration into open source projects), and requires a lawyer to review (preventing integration by smaller projects).

This feels like your Achilles' Heel.

Troll Tech tried to go down this line for years, with their QPL license. And they even had sane messaging, where whenever I read your messaging, it feels weaselly, and it changes week-to-week. Still, they didn't really take off until they went with a licensing system customers could trust and understand.

The standard dual-license model would be AGPL and commercial (or GPL+commercial).

* Most open source developers won't mind (or even notice) licenses, so long as their open source and have the nice OSI and FSF logos.

* Most commercial companies won't mind paying $$$.

Commercial customers treat you like Microsoft. Open source developers treat you like community members. Hybrid customers are okay too; if I'm working on a piece of BSD code, I can use the AGPL license on your code, while commercial users of my code can buy a commercial license from you.

And if you insist on the crazy custom license, figure out the messaging. This was better than what I read before. "Proprietary with a public repo" makes more sense than previous messaging which sounded like open source but wasn't. At that point, at least the license overdelivers rather than underdelivers. I still trust that at some point, as an adopter who can't or won't use those components, they'll become increasingly mandatory if you ever fall on hard times. The problem is still that it makes it sound like you have open source and proprietary products. You don't. You have a product with open source and proprietary components, a confused freemium model, and not something I'd ever use without consulting a good lawyer, who in turn would tell me to stay away.

There are many other good models. You could go in the other direction and close up a bit too.
It's a thing for learning stuff that fits on cards.
My brother died unexpectedly in his 30s, after years living and studying in another country. Some things:

I hope we found every relevant friend and invited them to the funeral. But as he travelled a lot, they are all over the planet, and the chance we found them all is basically zero. The only reason we found out about his first serious girlfriend was because he told about her a week before on the phone.

We went to his country, hired a van, stuffed cleaned out his apartment, cancelled every service we found out, then went back home. We presume everything settled, but you have to know about a service to cancel it. I hope whoever hired his house did not get too much trouble with angry debtors and such.

We found out about sides of him we never knew about. There might be other things, we'll never know. This is very hard for my parents.

Some unscrupulous companies read obituaries and send a bill. Really. We had 2 companies billing him for services never delivered, just hoping the heirs would pay them.

We did not manage to enter his gmail account. Google did not grant us access even when presenting a death certificate. They suggested we contacted an USA judge, and required everything done according to USA law, even if everything relevant happened in the EU. I still feel bitter about their total lack of sympathy and cooperation.
This is, with all due respect, an absolutely stupid comparison.

You are taking something that is fundamentally not-safe as a function of what it is, and the job it needs to perform. With out current level of technology, there is no practical way to make a single razor blade "safe" by your definition. There are fundamental, global safety issues (sharp things are sharp, corrosive chemicals are corrosive) that are impossible to avoid, because the safety-issue is tied directly to the fundamental function.

There is absolutely no fundamental function of a treadmill that requires the ability to kill a small child.

Are you claiming that it is fundamentally impossible to make a treadmill that is safer?

For what it's worth, there are attempts to make even-dangerous-things less dangerous, by limiting the danger. Instead of full-sized razors, you get little razors already embedded in a plastic casing. You engineer cleaning products that are household-acceptable and less-poisonous.

Just because there is some object out that there is not safe, does not mean that other things shouldn't be made safer when possible. Safety-precautions and safe engineering is not an all-or-nothing thing that has to be 100% across the whole world.

> So what's your fix?

You attempting to make solving all of the worlds safety problems my problem is bullshit. I explicitly stated that treadmill engineering is NOT my job.

---

PS. Don't even try to compare gun safety to treadmill safety. As far as I know there isn't a National Treadmill Association trying to make Treadmills as accessible as possible and actively pushing back against any safety initiatives.

This is the most bullshit, side-lining, "attempt to distract from the actual issue" argument that I've ever seen on this site. And that's saying something.
> It takes institutional knowledge and experience to make a safe and reliable product.

Sorry no. This implies that reviewing the negligent faults in this Design was a difficult task.

A basic Hazard and Risk analysis would have flagged this.

Even if we ignore the lack of safety guards, I struggle to believe that it is legal to release a consumer product with this much torque without some form of overcurrent/stall/speed detection and safety cut-off.
As a manager - I've had to do crap like this now and then to light a fire under people. It can be done to indicate extreme urgency. There also are real-world implications to some delays - for example not being able to run payroll is a legal nightmare and an ethical nightmare for hurting your employees.

Generally, when I've had to do this, it's been my fault for not manangeing properly.
> His speech was at best divisive and contained many euphemisms, if not straight calls to violence by using words like "fight."

Here are all references to the word "fight" in that speech (Full transcript is here: https://www.usnews.com/news/politics/articles/2021-01-13/tra...):

* And Rudy, you did a great job. He’s got guts. You know what? He’s got guts, unlike a lot of people in the Republican Party. He’s got guts. He fights, he fights.

* For years, Democrats have gotten away with election fraud and weak Republicans. And that’s what they are. There’s so many weak Republicans. And we have great ones. Jim Jordan and some of these guys, they’re out there fighting. The House guys are fighting. But it’s, it’s incredible.

* And you have to get your people to fight. And if they don’t fight, we have to primary the hell out of the ones that don’t fight. You primary them. We’re going to. We’re going to let you know who they are. I can already tell you, frankly.

* Republicans are, Republicans are constantly fighting like a boxer with his hands tied behind his back. It’s like a boxer. And we want to be so nice. We want to be so respectful of everybody, including bad people. And we’re going to have to fight much harder.

* But we’ve done it quickly and we were going to sit home and watch a big victory and everybody had us down for a victory. It was going to be great and now we’re out here fighting. I said to somebody, I was going to take a few days and relax after our big electoral victory. 10 o’clock it was over. But I was going to take a few days.

* The American people do not believe the corrupt, fake news anymore. They have ruined their reputation. But you know, it used to be that they’d argue with me. I’d fight. So I’d fight, they’d fight, I’d fight, they’d fight. Pop pop. You’d believe me, you’d believe them. Somebody comes out. You know, they had their point of view, I had my point of view, but you’d have an argument.

* Now what they do is they go silent. It’s called suppression and that’s what happens in a communist country. That’s what they do, they suppress. You don’t fight with them anymore. Unless it’s a bad story. They have a little bad story about me, they make it 10 times worse and it’s a major headline.

* But our fight against the big donors, big media, big tech, and others is just getting started. This is the greatest in history. There’s never been a movement like that.

* And we fight. We fight like hell. And if you don’t fight like hell, you’re not going to have a country anymore.

So which of those is a "straight call to violence"?

And just so it's not forgotten, he also said this during the same speech:

* I know that everyone here will soon be marching over to the Capitol building to peacefully and patriotically make your voices heard.
My biggest surprises learning Go were that it didn't have generics, and that it didn't have native map/reduce/filter. I think of many programs in terms of these three constructs and combining them.
ItemFix – Social Video Factory
decentralized, right in the readme. what more do you need to know?
What percentage of founders get replaced as CEO? It is very common for VC's to want what is often called, "adult supervision" once a company reaches a certain size. Even Google (home of the archetypal tech bro founder Sergey Brinn) ended up hiring Eric Schmidt once they got to a certain size.

I'm sure there is anti-asian sentiment (or at least discomfort) out there, but replacing a CEO once a company gets big enough to need it is absolutely routine.

Founders get pushed out by VCs all the time.
Weird, I don't see those interstitials. Do you have a screenshot of what that looks like?
> deadlines that absolutely require timeboxing a bug

To be clear, timeboxing is usually used in the opposite sense, to say "if this bug is not fixed by end-of-day then we should abandon the effort because the value of fixing it is limited".

It can be useful to timebox the amount of time that you spend trying to find the "right" fix before falling back to a workable solution -- like "if you can't fix the problem with the email sender by end of day we're going to send out the emails manually".
One can first try to compose the sum of 1 with smaller number of reciprocals. Let's start with smallest positive integers. 1/2 + 1/3 < 1, but 1/2 + 1/3 + 1/4 > 1, and the part 1 - (1/2 + 1/3) is actually 1/6. So, with 3 positive integers we can have 1/2 + 1/3 + 1/6 = 1.

Now we can try to replace 1/6 with smaller reciprocals, and we need exactly 3 of them, so the problem sort of repeats itself - now we need to find 3 such integers, that their reciprocals sum to 1/6. This is the same problem as we just solved, only scaled 1/6 times, so instead of 1/2, 1/3 and 1/6 we can have them divided by 6 - so, 1/12, 1/18 and 1/36.

So now we have five numbers - 1/2, 1/3, 1/12, 1/18 and 1/36 - summing to 1 and their reciprocals are integers.

You suspect that's not the only solution - after all, original 1/2 + 1/3... was selected rather arbitrarily, as the largest numbers with reciprocals still less than 1.
6:17 is amazing.

"Smooth, quiet and delightful" the spokesman says as the entire train shakes around him like an earthquake.
Have a look at Mastodon, PeerTube, PixelFed etc.
There are standards for that, yes.

https://en.wikipedia.org/wiki/IP_Code
BillionToOne (YC S17) is hiring software engineers to advance genetic testing
BillionToOne is a YC Top Company (https://www.ycombinator.com/topcompanies/) that has the most advanced genetic tests in the world. Our proprietary DNA sequencing technology has enabled us to launch:

- The world's first and only blood test to use pregnant mom's blood to detect fetal diseases like sickle cell disease and cystic fibrosis (www.unityscreen.com)

- The only prenatal test in the US for detecting fetal Rh blood type incompatibility (affects 15% of births)

- The first FDA Emergency Use Authorized COVID-19 test to run on high-throughput Sanger instruments (https://billiontoone.com/covid-19/)

In the coming years, we will also launch a cell-free DNA test for cancer detection and monitoring.

We’re looking to hire a few engineers to help us with a number of projects that are used by patients, physicians, and internal staff.

Our HQ is in Menlo Park, but engineering is fully remote (US based). Tech stack: Python/Django, PostgreSQL, React, etc.

Apply here:
- Frontend / Fullstack: https://apply.workable.com/billiontoone/j/4ED9B27860/
- Backend / Fullstack: https://apply.workable.com/billiontoone/j/14D61DA914/
Then you need to update the second amendment, or overturn Brandenburg with a supreme court who is more willing to regulate speech.
I seem to recall in the US, there was a narrow window of time where ISDN was interesting - one of my parents had an ISDN connection to their office installed in our house. Within a couple years, the vastly faster ADSL became available followed shortly thereafter by cable internet.
Building a Bingo game back end
So I’ve learned all sorts of things, readings bits and pieces over the years. Mark donohue’s unfair advantage has a chapter on the Ford gt program and his involvement. Has some detail about Walt hansgen and some technical details.

Other stuff I’ve just accumulated over the years ,don’t think anyone has written a complete history of the program.

What PISSES me off, is that in HS I lived within bike distance of gurney’s AAR and had no idea. My dad should have known, but didn’t bother to tell me. Also, within driving distance of Carroll smith’s residence.

I wanted nothing more than to be a race car engineer at the time.
Just recently I was reading about supermemo, a tool that’s about 30 years old but has been updated and focuses on improving retained memory. It was developed by Piotr Wozniak who based on this 2008 article has taken the system as far as humanly possible by surrending his life to the algorithm.

https://www.wired.com/2008/04/ff-wozniak/

The supermemo algorithm has been published and you’ll find all sorts of implementations including the Ruby gem forgetful.

I read the mnemonic memory article and I didn’t see what differs between orbit and supermemo, but that doesn’t mean the approaches are the same.
this used to be liveleak
CLUI: Building a Graphical Command Line (2020)
> Look at Elon Musk and his companies.

The SEC is the only financial regulatory body that is a real public institution. Isn't everything else just private corporations who only give the impression that they're public regulatory bodies?

Given Wall Street's lobbying power, the regulatory bodies for Wall Street has always been weak. I don't foresee this changing for the same reason.
It’s just aluminum - be sure to grab a portable angle grinder before hopping in, I suppose :)
People in England could get Covid passports for foreign travel by 17 May
When you have the luxury of telling someone that in software, it's called consulting!
Sure, but nuclear runs 24/7 with dependable output. Build 100 nuclear power plants and you have 99.9999% uptime and no battery.

If Elon is a willing to start selling power walls at 100$ / kwh retail at scale then we’ll talk.
Compared to any of the cases that may require an emergency stop, I'm fairly sure a runner running themselves into the machine is the least harmfful outcome reasonably imaginable.
I think this statement rings true if your replace "AI" with most if not all technologies.
Whoa, please don't take HN threads further into ideological flamewar, and please don't attack other users aggressively like this. It only contributes to destroying this place.

You crossed several circles deeper into hell with this comment. We're trying to go the other way, for what should be obvious reasons, and you don't need any of this to make your substantive points. Nor is it in your interests, because it only discredits your argument, which is particularly bad to the extent that your argument is true.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.
>The agency said Peloton's treadmills are designed differently than its peers, with "an unusual belt design that uses individual rigid rubberized slats or treads that are interlocked and ride on a rail." That's instead of a thinner, continuous belt. There is also a large gap between the floor and the belt of the Tread+, leaving room for things to wiggle their way under.

The commission in April simultaneously released a graphic video, captured by a home security camera, of a young boy being pulled under one of the Tread+ machines and struggling to free himself.

But Peloton pushed back on the recommended recall at the time, telling customers there was no reason to stop using its treadmills, so long as children and pets were kept out of the area while in use. The company had also recommended a key be used to lock the device after each workout.

The fight club defence.

Narrator:
A new car built by my company leaves somewhere traveling at 60 mph. The rear differential locks up. The car crashes and burns with everyone trapped inside. Now, should we initiate a recall? Take the number of vehicles in the field, A, multiply by the probable rate of failure, B, multiply by the average out-of-court settlement, C. A times B times C equals X. If X is less than the cost of a recall, we don't do one.

Business woman on plane:
Are there a lot of these kinds of accidents?

Narrator:
You wouldn't believe.

Business woman on plane:
Which car company do you work for?

Narrator:
A major one.
Trillions of cicadas from Brood X set to emerge
Donald Trump attacked an American-born judge and said he couldn’t be impartial because he had Mexican ancestry https://time.com/4356045/donald-trump-judge-gonzalo-curiel/
Sure, but why would the plane fly fine if the cockpit is dramatically on fire?

I doubt the automated systems fly plane good if the circuit breakers are all in the "on fire" state.
How to send $ETH in 19 lines of Python
I wrote a Replit tutorial on sending Ethererum from wallet to wallet in Python. It takes only 19 lines of code and is super easy to set up!
Are you familiar with Anki?
The reason I believe Trump is dangerous is that, after he lost an election, he started making constant public demands for the results to be nullified, interspersed with occasional declarations that he had definitively won the election and intended to remain in power. I agree that many prior criticisms of him were speculative or untrue, but it seems clear that he was prepared to install himself for a second term by any means available.
> The IP Code, or Ingress Protection Code,[1] sometimes referred to as International Protection Code, IEC standard 60529 classifies and rates the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and water.

https://en.wikipedia.org/wiki/IP_Code
There's the IP code (https://en.wikipedia.org/wiki/IP_Code) but I've only seen it used with respect to devices. It's unclear (to me) if it would cover something like this.