/sci/ - Science & Math

>>12130371
He's building a rocket factory to escape the hordes of invasive bug aliens (chinese)

>>11460691

>>11457485
despite the 'muh girl powah', For All Mankind is actually a decent show, would recommend pirating.
If it's how things really could have turned out, Apollo 11 being first was a mistake

>>11025840
I was thinking today that if Nixon hadn't been cucked out of 1960, with no "before the decade is out" speech (and no -gate in the name of every scandal), we'd still probably end up walking on the Moon first, only it might be more like 1972-1975.

If there was a supernova sized explosion around centered around pluto and Jupiter was in between the explosion and earth, could earth survive it? What about if the sun was between the explosion and earth?

>>7230873
3N of thrust per 1W supplied is amazingly efficient (for a theoretical, 2nd generation engine). Think how much energy is wasted by a common car engine. For gasoline engines over 70% of energy supplied is lost to heat; of the total energy supplied to the car from the engine something on the order of only 1% or 2% actually go straight to propelling the vehicle forward due to moving parts, friction, etc.

The EmDrive has no moving parts. The thrust comes straight out of the damn thing. There is, potentially, almost zero losses to the energy required to move it forward, other than atmospheric friction on the moving vehicle.

>>6480025