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Originally posted by ImaFungi
Is there an up and down to this region?
what if we were launching a spaceship that could travel lightyears in seconds from the northpole, and kept going straight, would we eventually be able to view a birds eye view of the universe?
what if we were in a space ship and traveled outside of our galaxy and then idled for "a very long time"
would we be eventually moved by surrounding forces, or would we eventually get run into by another galaxy?/ ( is it possible for anything to be completely still for a long period of time?)
Originally posted by CLPrime
reply to post by ImaFungi
Alrighty...first, a question.
Let's say you have a car with rocket engines. You leave the Earth in the direction opposite the Sun at a speed of 10 km/s - so, you're travelling at 10 km/s relative to the Sun. You travel out past Mars. If a Martian measured your speed, would they say you're moving at 10 km/s, or some other speed?
Originally posted by jiggerj
Originally posted by ImaFungi
reply to post by jiggerj
the sun is huge compared to planets.. its diameter is almost a million miles.... if it is effecting the planets enough for them to orbit the sun via gravity, why is it hard to imagine the space around the planet and in-between is effected by the sun...
If we're talking gravity, we little beings can jump off the ground. Of course we fall back down, but we aren't a planet billions of miles away from the sun. I'm pretty sure the Voyager image taken of the sun from 3 billion miles away made the sun look as small as a golf ball from that distance. Add another billion miles and the sun would look the size of a gumball. And it holds Neptune in place?
Is it possible that each planet exerts some kind of force on every other planet, thereby keeping them all corralled around the sun?
Originally posted by ImaFungi
i remember seeing something with the speed you traveling has an effect on time, it was shown with the time it takes a photon to bounce between to mirrors,, the faster you are traveling in a direction the longer it takes for the photon to hit the mirror because it has to compensate for the movement over distance... is this the same with the atomic second?
well wouldnt the correct measurement be from the car, because your measuring via the atomic second so time is a controled ruler of measurement, you just need reference for the distance you traveled in a certain amount of time?
Originally posted by CLPrime
reply to post by artistpoet
Are you at all familiar with Maxwell's equations?edit on 7-5-2012 by CLPrime because: (no reason given)