9 May 2018
During the Winter Olympics, TV commentators said it is advantageous for ski jumpers to be light because they will travel further. But being light is seen as a disadvantage for slopestyle snowboarders. What's the difference? And what effect do the...
9 May 2018
If there's no friction in space, why do the arms of spiral galaxies sweep backwards?
9 May 2018
Why are the dates when we switch between summer and winter times (for example, swapping between Greenwich Mean Time and British Summer Time in the UK) placed so asymmetrically around the solstices?
