Question: How fast is the speed of light?

Scott Lawrie answered on 10 Mar 2016:

Light is the fastest thing in the universe. In fact nothing can ever go as fast as light, let alone faster than it! Light is so fast that it could go around the earth 7.5 times in one second! Compare that with it taking over 12 hours to get just half way round the world in an aeroplane on holiday! 😎