The winning idea of the fun theory award, submitted by Kevin Richardson, USA. Can we get more people to obey the speed limit by making it fun to do? The Swedish National Society for Road Safety, actually made this innovative idea a reality in Stockholm, Sweden.
Solar magnification
This man is not sure if men went to the moon, but he is sure they could not have faked it.
Why doesn't magenta appear in the rainbow? The answer lies not in physics but in biology.
