Recent advances in technology and new trends in commercial air travel could make supersonic flight economically viable. But regulations will have to change first.
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.