Ford’s Job One on This Week @NASA
NASA Flight Engineer Kevin Ford and his two Russian colleagues have made it to the International Space Station and are working to make themselves comfortable aboard the orbiting complex they’ll call home for the next five months. Also, Dragon’s ready to return; Curiosity Rover Report; Red Road to Mars; Milk Way’s Black Hole; Planetary Exploration at 50; and more!
the answer was wrong:) Thats problably why
Actually, his answer was correct because, according to the formula of gravity, there's still a force in such a distance. Otherways, because the ISS is orbiting earth, there's an nearly equal opposite force, making the total force nearly 0. The point, why it the total force isn't 0 is, that the extremly low air friction which still exists in 400 km orbit, slows the ISS slowly, which makes heights-differences, which means differences in gravitational force.
The truth is out there. Do some calculations. What size spacecraft are you thinking about? How much acceleration would you need? Take a look at the maglev train for example .. it only 'sits' an inch or so off the rail, and the acceleration is horizontal, basically just against wind resistance only. You need to move a spacecraft against both atmospheric friction and gravity – vertically! How much power would you need? What size rail? An interesting proposal. Inspire yourself to research it. 🙂
Yes, but the difference in gravity at different altitudes for the ISS is very minuscule. Almost insignificant. The gravity in the ISS and on the ground on the earth is almost the same. Just a tiny bit lower on the ISS. The constant free fall creates the "illusion" of weightlessness.
i agree. But i haven't voted down anyone. Where do you see that the comment has been voted down?
Ben Mankiewicz! He's all over the place. 12:29 Catchy.
He said "circ-ul-ated" instead of saying "Circu-lated" when talking about the ammonia leak. Lulz.
He also said something about measuring something's stremf.
GO NASA, GO NASA, GO GO – BOO YAH!!! 🙂
Work smarter, not harder – BOO YAH!!! 🙂
Indeed KSP Forums. One of the disadvantages of using the same user name for different platforms 😉
NASA IS GREAT!