When you see a bolt of lightning, do you immediately start counting to see how far off a storm is? An atmospheric scientist parses the practice.
The speed of light is of great advantage when sending data over the internet, but it is a real challenge to master on a small chip. A new design offers a solution: convert the energy to sound.
Many people think relativity puts a hard speed limit on the universe, but it actually opens up the possibility of faster-than-light travel - if we can overcome some significant practical hurdles.
There's a cosmic speed limit that unfortunately means you aren't going to be firing up warp drive anytime soon.