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Comment Re:833 of These... (Score 1) 178

2000 mile range of a diesel. Probably only 200 to 300 for this POS (I doubt even that but trying to be nice). Electric motors drain batteries super fast under heavy load conditions, and long and even short haul cargo trucks are expected to carry up to 40,000 pounds of cargo. The whole truck including tractor, trailer, and cargo can weigh up to 80,000 pounds. This electric tractor might make it 500 miles on its own. Add the trailer and cargo and likely not even 200 miles. A half hour wasted every 200 miles will bankrupt the trucker. No one will want to hire his/her truck if it wastes that much time.

Comment FFS Tell Us Drain Time With Full Cargo Weight (Score 3, Interesting) 178

It doesn't matter how fast it charges if it can't drive as far as a diesel with 40,000 pounds of cargo. The heavier the weight, the more toque required, which is the Achilles Heel of electric motors and batteries. They aren't telling us anything if they don't show how far it drive pulling a 40,000 pound cargo on a long trailer. 80,000 pounds altogether. Diesel tractor trailers can drive up to 2000 miles on a full fuel load, depending on tank size. I seriously doubt a Tesla semi can drive even 200 to 300 miles with a full cargo load of 40,000 pounds.

Comment Re:Heat (Score 3, Informative) 53

Infrared are longer wavelengths. Probably too long to be trapped the way they describe. I immediately wondered about microwaves, i.e. radar. But those are way longer waves, so no as well. The reason they can put a mesh screen you can see through in the door of a microwave oven, is because the wavelength of those radio waves (that is really what they are) are so long they can't get through. Finally, black items can radiate heat, you just can't see it. So sure, if it trapped enough visible light, it could be 'converted' to a longer wavelength (infrared) as the fabric tries to shed the extra energy.

Comment Venus (Score 1) 51

Given their size, we should send half a dozen (or whatever the right amount is) SpaceX Starships to Venus with a payload of reflective dust. Dust that can be released around the planet to see the effect it has with respect to cooling the planet.

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