Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift 2.0 Basics An Introduction to Swift Programming Constants

Speed of light

Speed of light = 3.00 x 10^8 m/s

Speed of light != 3.00 x 108 m/s

Anjali Pasupathy
Anjali Pasupathy
28,883 Points

That's some of the slowest moving light I've ever seen!

LOL! A jet can fly faster than 3.00 x 108 m/s (725 mph).

Anjali Pasupathy
Anjali Pasupathy
28,883 Points

Sound moves faster than 3.00 x 108 m/s. If light moved that slowly, we'd hear everything before we see it, and we'd break the "light barrier" shortly before breaking the sound barrier! XD