sjburt

If the modified code is distributed in binary form but not in source form.

On the contrary, GINI vs per capita GDP show a negative correlation (really, more of an L shape with the US as an outlier). The US is the only country with a GINI over .4 and a per-capita GDP over $35k.

https://www.businessinsider.com/goldman-sachs-chart-shows-us...

Much of Western Europe has similar GDP per-capita and much less inequality.

I think it's just the cost. The Spica is about the smallest rocket that could get a human past the Karman line. It's 12m high and weighs 4000kg. To get into orbit, you'd need something around the size of the Mercury/Atlas rocket, which was 120,000 kg to get a 1500kg capsule to orbit.

Of course, they could do an unmanned mission. The smallest orbital rockets are about 10m tall and 2.5T, for a payload in the 5-10kg range. But I think that is not as interesting for them.

One of the arguments is that if battery production is limited it's better to spread the batteries out over a larger number of vehicles.

For example, the RAV4 Hybrid has a 1.6KWH battery (and NiMH to boot), the RAV4 Prime (plug-in with 42 miles of EV range) has a 16KWH battery, a similar Model Y has an 75 KWH battery.

They are highly effective at making patients stop begging for antibiotics they don't need. Patient satisfaction with their doctor has nothing to do with medical outcomes.

In the space industry (specifically, the part of the industry that writes academic papers on global navigation), "GNSS" is used as the generic term, GPS means the American GPS.

There's a charming documentary about her directed by Errol Morris of all people.

The problem is that ITER is funded as a science project, and the researchers want to get as much research as possible.

So they are going to spend a lot of time studying plasma before they irradiate the vessel with fusion byproducts and it's no longer safe to take apart (for example, to add new sensors).

It's the only facility of this size so the research program is completely sequential.

We could have fusion, we just need to spend $20 billion a year for 10 years. Not $1 billion a year for 200 years.

European and Asian prices, from the chart in the article. Seems like US is cheaper.

https://www.cmegroup.com/markets/energy/natural-gas/dutch-tt...

This is a pretty misleading headline. If you look at the price graph in the article, it shows prices between $5-12/MMBTU between 2015-19, a decline to around $1.50 during the peak of pandemic economic slowdown, and a rise up to $15. So prices are 1.5-3x historical values and we're coming off a price dip that would have suppressed supply. It seems as much likely that it will return to the norm as that it will continue to rise.

If you’re on a ship and want to get longitude, you don’t predict local noon. you measure local noon and compare it to a clock that was set to noon at a known longitude (such as Greenwich), and correct the offset using the equation of time.

Yeah, I think the real mistake was when everyone decided to use UTC instead of TAI. I can't actually hold the astronomers to blame for this. More likely it was telephone network engineers or someone at a stock exchange.

Astronomers and navigators. These also were the first people that needed accurate time and first people capable of measuring time accurately, so much of the expertise is in astronomical or naval institutions. This was still very relevant in the 1950s when the modern time systems were being developed.

There is a growing movement in the timekeeping community that agrees that keeping UTC close to UT1 is no longer important and that leap seconds should be abandoned.

It is worth asking during negotiations, especially if company is pre-money and the strike price is under a cent. There is no measurable cost to it for the employer. Oftentimes founders are unaware that this is something they can even offer.

Unfortunately, if the window is larger than 90 days, they become NSOs and the difference between the strike price and the FMV is considered regular income, with withholding required immediately. You then have to pay capital gains when you sell, so you're actually taxed twice.

This is not true with ISOs (it is considered income for AMT but that affects fewer people and you can get AMT credit to claw it back in future years).

The tax laws around stock options really need to be reformed, they encourage employees to take on undue financial risk, especially for non-public companies.

Do the Mattermost mobile apps let you log into multiple teams at the same time yet? That was always the sticking point for my social groups and the reason we went with Slack or Discord. I looked and saw some rather inconclusive JIRA tickets, ranging from "it's impossible" to "it's on the roadmap".

Updating software is as old as space systems that had software. Even the Voyager probes could receive software updates and were updated many times. Curiosity famously was launched without code to do the landing sequence, it was sent over the air while Curiosity was in cruise to Mars.

I think what is novel about this satellite is that it has a software-defined radio and a phased array antenna, and this press release is just so dumbed down that it has lost all technical meaning.

In their system, the actual real-time safety critical code is elsewhere, on a dedicated processor. The python code sends messages to the safety code, which applies limits and sends commands to the car hardware. And other safety systems like AEB are totally untouched and still functional.

The safety code has a limit on steering ramp rate and a max torque limit. The driver can easily overpower the torque limit, and the ramp rate limit means it won't suddenly jerk.

The python code I think is temporary, they ultimately want to do end-to-end models that do both perception and control (rather than a model to do perception and traditional controller to do control). If that effort fails I think they would probably replace the python code, the current stuff is definitely amateurish.

If actual controls engineers are involved, it's probably going to a be a terrifying blob of C autogenerated from Simulink or something like that.

I have a Comma Two and have driven maybe 4000 miles on it around the SF Bay area. It is somewhat limited in that they can only steer as hard as the car's lanekeeping system is willing to steer. The driver monitoring helps although I am middle aged and pretty careful anyway so it's only actually beeped at me on a handful of occasions. Honestly, it is not the type of device where you want to take your eyes off the road, I think the DM is actually a little more lenient than it should be. In generally, you are basically as alert as if you are driving. The advantage is that you aren't spending mental energy keeping the car centered in the lane or maintaining a good following distance, or straining your arms holding onto a steering wheel. Long car trips are much more comfortable and less as a result.

It's not very useful on city streets or curvy mountain roads, the places where it shines are freeways and stop and go traffic -- the boring driving.

It has been quite reliable, most of the kinks have been worked out and they have enough users that there are not any serious bugs on the standard releases. I have reported minor bugs and had them fixed in a matter of days, which is always amazing for an OSS project. If you have an uncommon car there can be tuning issues from time to time. There is also a fairly strong user community on Discord that can help you troubleshoot things.

It works best on Toyotas and Hyundais, Honda and Subarus are a little worse, and the other manufacturers is really hit or miss--there may be individual models where someone got it working.

It is not a consumer product, you need to be somewhat capable of troubleshooting the occasional issue, reading documentation, dealing with occasional quirks etc.

The TV production squeezes commercials in during stoppages. But American football has a large number of stoppages (between every play, during timeouts called by the players/coach, after scoring, when a player has an injury, between quarters) so there are lots of chances to squeeze commercials in. They have also added stoppages basically so they can squeeze an additional commercial break, such as the "2 minute warning" at the end of the half, which is just an automatic timeout (and inevitable commercial break). Some say that the addition of video review (where referees review a contested call) was an excuse to add more commercial breaks.

There is no director, but there is a huge production team synchronizing everything and making sure that they squeeze in as many commercials as possible without missing any of the action.

Generally, Github Issues are used as a bug tracker, not a community FAQ. Asking a maintainer to compare and contrast their project with another project or git feature seems a bit demanding.

It’s especially frustrating because the article itself presents the challenges as largely surmountable as long as there is adequate awareness.

This is an old article that compares tires in the 20-25mm range. The bike industry has moved to wider tires and 25 or 28mm tires are now quite common on road bikes, and gravel bikes have much wider tires. I would be the optimum is around 25 or 28 for road bikes on typical roads, especially as aerodynamics become a bigger factor.

Most projects use C because there was zero consideration for anything else. No embedded team sits down at the beginning of the project and says "should we use lisp?". It's just C. Or maybe "C, but use a C++ compiler with less UB".

Not only that, but a bad database.

It frees up the optical design, you can have the rear element closer to the sensor.

The thing that always rubbed me the wrong way about git-lfs was that they cloned the git-scm.org site design. It's not part of git!

[1]https://git-lfs.github.com/

[2]https://git-scm.com/

Much of that is agricultural pollution as well as geographic factors (mountains on 3 sides and minimal precipitation much of the year)

With a $5/gallon tax, you could pay $600/ton for direct air capture of carbon. This is the current price for small test installations. There are claims that this could decrease to as little as $40/ton with scale.