Well, turbines create a large flow of gas and the entropy is comparably high what with all that diluted heat. So if you can afford the space of a lot of expansion chambers with heat exchangers and such, you can get a quite good thermal efficiency.

Probably terrible. In order for a turbine to reach any decent efficiency, it needs secondary and tertiary heat collection units that are increasingly bulky because of the decreasing gas temperature, and thus skipped in space-critical applications.

I am of the opinion that tachometers should display radians per second, because nobody is in any way or fashion served by rotations per minute.

I stumbled over this topic by random, and was amused by finding a swedish reference (as I am a swede). Then I read your comment, and a memory came up.

My condolences.

Correct. A ventilator in the sense I learned it is something anesthesiologists use to make unconscious patients breathe - in carefully dosed and humidified pulses with volume per stroke, pressure, rate, and usually also with narcotic gases carefully dosed and monitored.

Granted, but the fact remains that small displacement DOHC engines generally weigh more than large-bore pushrod counterparts because of those massive contraptions above the piston. So 200 kg is not impressive, it is on par for most 3L V6 engines.

I am quite sure that a 500 hp electric motor with electronics weigh quite a lot more than 12 kg.

“Only 200 kg” is still about 12 kg more than an LS3.

Engineers need to do more amusing and bombastic demonstrations like that. 50 years on, and people still remember the butter thing.

There was a Mustang too, the RC2-60.

This insanely gorgeous car is extensively described in the fantastic book The Wankel Engine by Jan P. Norbye. More about chassis and suspension though, than of the motor.

People have been sneering online at Elon Musk for saying that Tesla could probably make ventilators.

You are right, and I am just like most in that regard. It is just the misconception about torque that ires me.

Precisely.

No. If you push a mass up an incline at any speed over zero, power is what you need.

That is the first thought when I look at the trunk space of a car. “Wow, this could fit a lot of bodies!”

So the cupholder causes thunder and lightning? Also, it can be thrown but always returns to your hand, and it has an unusually short shaft?

I read a lot of the gripes here, and most all is totally alien to me. Swedes drive safe, courteous and well.

This is hilarious, adorable and crazy cool at the same time.