Career break on your CV? Still no idea where you want to go in 10 years? How do you answer such questions in a job interview? Here you can test yourself and pick up tips and tricks for your interview.
A race can be simulated using (many) LEDs alone. Two people compete against each other and try to "drive" their vehicle to the finish line first by pressing a button as quickly as possible.
There are still many false claims circulating that play down the threat posed to the Earth by climate change. This article compares these claims with the scientific facts.
Can music be transmitted using light? Can music be made visible? What is phase control, what does it do and how does it work? These questions are answered in illustrative experiments.