that relative mass business is freakin' WEIRD.
According to this acceleration calculator, 1.5 gravities* is equal to 32.9 miles per hour/sec, or 14.7 meters/sec squared.
According to this site, the speed of light in a vacuum is 300,000,000 meters/sec (it also says that light slows down in water to around 225,000,000 meters per second).
So 300,000,000 divided by 14.7 is 20,408,163,265.306, which is 340,136,054.422 minutes or 5,668,934.240 hours or 236,205.593 days or 647.139 years.
A ship that took off when some of the first bubonic plague-bearing rats hit Italy would only now be reaching light speed. Columbus would not yet have taken off, and the English language still sounded more like German, with the word "knife" pronounced "ku-neef-ay".
That is, if I did the calculations right. Math, especially simple math, is not my strong suit.
* according to this page, a fighter pilot can only take 4Gs for a couple seconds before blacking out. I kinda figure anything too far over normal gravity is going to be too much of a strain for a crew over the time frame we're probably talking. It'd be like having a crew of morbidly obese osteoporosis sufferers. |