![]() ) Now we know that is inaccurate, and it only would take about 38 minutes. ![]() (The same idea was proposed, without calculation by Lewis Carroll in 1893 in Sylvie and Bruno Concluded. Even if the tube does not pass through the exact center of the Earth, the time for a journey powered entirely by gravity (known as a gravity train) always works out to be 42 minutes, so long as the tube remains friction-free, as while the force of gravity would be lessened, the distance traveled is reduced at an equal rate. The time for such a journey works out to be 42 minutes. The first half of the journey consists of free-fall acceleration, while the second half consists of an exactly equal deceleration.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |