See, that's why I prefer *my* model of flat-earth gravity. This one has been torn to shreds. Also, I'm not sure if anyone has mentioned this, but if the Earth is **accelerating** at a rate of 9.8 m/s², then it's velocity is obviously increasing at a constant rate. If the speed of sound is as documented - 340.3 m/s - then after a mere 35 seconds in existance, the earth would have broken the sound barrier. Then if the speed of light is 299 792 458 m/s, let's do some rough calculations to see when we'll reach that

299 792 458 m/s

divided by 9.8 m/s²

=30 591 067 seconds

30 591 067 seconds

divided by 60 seconds/minute

=509 851 minutes 7 seconds

509 851 minutes

divided by 60 minutes/hour

=8 497 hours 31 minutes 7 seconds

8 497 hours

divided by 24 hours/day

=354 days 1 hour 31 minutes 7 seconds

354 days

divided by 30 days/month

=11 months 24 days 1 hour 31 minutes 7 seconds

Put it all together and you've got 11 months 24 days 1 hour 31 minutes 7 seconds.

Now, I realize that I used numbers that were quite rounded so my answer is a bit off, but that's a general idea. Basically, just before 1 year of existance the Earth would have reached light speed. Now as far as I know (and feel free to correct me if I'm wrong), in theory nothing can travel at that speed without a mass of 0. Also, if something were to travel faster than light, it would actually travel back in time. That's why it is said that time travel is impossible, is it not?

So... is the Earth traveling back in time?

[EDIT] Alright, it's come to my attention that this HAS already been said. Whatever, I still said it.

[EDIT2] Slight miscalculation, I left out a division by 60. The correct numbers hae been substituted