Also, note that it usually takes MUCH longer than the 6-9 months we saw with the COVID vaccines. This is because most diseases have a much lower prevalence in the average population during that time frame. The COVID vaccines could be so rapidly evaluated because the results showed a massive difference between the…

What I don’t get from the 4th gear section is: why does reduced demand (not shipping used cars to Russia) cause a price spike?

The wet dress will give them data, and they will need to analyze the data to make sure it meets expectations. If it was SpaceX, they might have gone ahead, but that’s because Starship costs much less to build each one. (And even SpaceX does several wet cryo tests with new hardware before launching it.) For SLS, this…

They would be two front passenger seats, (plus whatever is in the rear,) with the associated passenger airbags and seat belts. And the nagging buzzer until you click your seatbelt in, only this time it won’t move the car until you do.

It’s the same question as the issue between John Deere and farmers that want to repair their own tractors. Does the franchisee own the equipment, or not? If they own the equipment, then should they be able to repair it, or are they chained to a single monopoly of dealers that charges exorbitant rates for a simple…

Except body cams. But of course the police would apply the same sentiment to those.

Because face scanning is imperfect, and in a database of millions, could misidentify you as somebody that is a suspect.

The SuperDracos on the side are intended to be used for launch escape. The forward Draco thrusters are used to make orbital adjustments, as the side mounted SuperDracos would lose some efficiency to cosine loss due to the angle they spread out, and they are also much more powerful to lift Dragon in full gravity during…

The USSR used the Baikonur Cosmodrome as the launch site for Soyuz because it was furthest south. When the USSR split up, Baikonur was now in Kazakhstan and Russia operates the site in that country under a lease agreement. Since that was the primary Soyuz launch site, the ISS orbit was selected so it could be serviced…

Dragon is kind of unique in that the primary thrusters point towards the docking port, which makes it unusable when docked. (This lets them have an almost passive “trunk” in the back, instead of a full “service module” like other capsules have.) But there is room in that trunk to put a larger thruster and tank.

Or maybe lets recognize many of our own emotions are deeper than our “intelligent” thoughts and can exist without human-level intelligence or language.

True that draining them reduces the fire risk, but it also causes permanent damage to the capacity of the battery. (Not a concern in your case of a battery recall, since they are not going to use them anymore.)

Lead acid at 12V doesn’t have the extra fire risk that a 600V lithium ion pack does.

Having a loose cable flopping around is more dangerous than a properly connected battery. And you don’t want to be anywhere near the battery terminals of a 600V battery. (Also not something I’d want to leave for the dock workers to do.)

There is some reduction of fire risk if the cell is discharged, but lithium cells are not designed to sit discharged for a long time, it will damage their future capacity. And if they are ever fully discharged, they will never be useful again.

Probably because solving it would require a totally different and heavier design for the overall craft, not just the rotor.

It’s one thing to use a tool. (Which many animals have been seen to do.)

FAA did some testing, and the LiFePo4 cells were drastically safer, even to the point that when one cell was intentionally compromised, it did not heat up enough to trigger adjacent cells.

Some cars are starting to switch to LiFePo4 batteries which have a much lower fire risk.

At least solar panels don’t leak.