This simulation showed how long it would take to circle the Earth at the speed of light, and it'll leave you stunned when you see how fast it is
This simulation showed what it would look like if you went around Earth at the speed of light, and it’s mind-blowing.
How fast is the speed of light exactly? 186,000 miles per second – try to visualize that.
Well, thanks to a simulation posted to You... [2087 chars]