Apparently, the rocks have just enough slip so that the crawler can turn. Trying to turn with those tank treads on concrete would eat it up. Concrete would be fine if they didn’t have to turn.

Small correction:

Don’t discount the marketing value of bragging rights when T-Mo can say they cover every square foot of the US.

I remember a study done decades ago, looking at the effect of the lack of contrails during the aviation shutdown after Sept 11, 2001. It showed the contrails had a net cooling effect at that time. (i.e. the study period was measurably warmer after controlling for other variables.) But apparently, there is a strong…

Not useless. Electric power on a sailboat is still useful at the start and end, when you might need to maneuver in a harbor that doesn’t align nicely with the wind. Docking under sail is hard, and so is trying to tack through a busy shipping lane. But get to the open ocean, then raise the sails and let her fly. Unless…

Time of use makes a difference. Nobody needs to charge their car during peak air conditioning load. Wait a few hours, and there’s enough to go around.

It’s a Catalina 30 sailboat, and then I replaced the diesel with an electric motor and 300AH 48V battery. https://electricyachtpacific.com/

I have an solar electric boat, and if I limit myself to the power output (560w) of the solar panel, I can do about 2 knots in calm wind. (Add enough wind, and I’ll do 6 knots even without the motor.)

If your important data does not exist in multiple zip codes, then it’s not safe.

I also never thought I’d hear the “Billion” word for anything short of a class action. This is talking about a single accident, right?

I might add families that are having their house tented for pest extermination. But hopefully their policy is not a blanket ban, but just more scrutiny on those local rentals. The article mentioned taking other factors into account, such as rental duration and day of week.

Flash fire is not a problem at 4.5 PSI. (It’s the same partial pressure as 20% O2 at 15 PSI.) The problem with Apollo 1 was 15 PSI of pure O2, because they were running the test at sea level.

Depends on the pressure. Pure oxygen is fine at about 4.5 PSI. (Though the astronauts might think it’s too dry for long durations, since it won’t hold much humidity.) But the other factor is nitrogen is not depleted from the enclosed environment, so there’s no need to constantly replace it. The 3% nitrogen found in…

A rocket launch is hard to hide, and several organizations make a business of tracking everything in orbit larger than a penny. But that’s different from knowing the purpose of the craft or when it will come back down.

This feels similar to the early days of neural net object recognition. I don’t know how well this will scale to support more complicated recognizers, but if there’s any parallel, it could be useful.

Also keep your eye on Stable Diffusion. The current beta is closed, but they do expect to expand it again soon. (I was able to join the 2nd wave.) They intend to go open source, releasing the actual model so you can run it on your machine or GPU.

And how stringent will they need to be on age verification to avoid a lawsuit? This will affect all users, not just the kids.

Is that per feature, or per child? It seems ludacrisly low for one, and and hilariously high for the other. Depends on what is defined as “per violation” under the law.

The “old space” companies have a lot of catching up to do, compared to SpaceX, Firefly, and Rocket Labs.

Orbits don’t work that way. If you are lower, then you orbit faster, and it won’t stay lined up for long. If you slow down, then it will go even more lower.