Start networking and exchanging professional insights

Register now or log in to join your professional community.

Follow

How many seconds would it take for light to travel AROUND the earth?

user-image
Question added by Salman Ahmed , Intern , Qatar Design Constorium
Date Posted: 2015/03/11
Mohamed Khedr
by Mohamed Khedr , Researcher , Helmholtz Center Munich

Considering the radius of Earth is 6,371 km

The circumference of a cross section of earth will be2*pi*r= .59 m

And since the speed of light is about 3*10^8 m/sec

So, the number of seconds should be around (.59/3*10^8)=0.13 second

or130 millisecond!

More Questions Like This

Do you need help in adding the right keywords to your CV? Let our CV writing experts help you.