Ada, 7, wants to know why things close to the train windows zoom by really fast, while things further away seem to go by much slower.
West Australian Labor leader Mark McGowan said his state has the "worst rate of methamphetamine usage in the country". We asked the experts to check the evidence.
... and how wind played its part.
Ice is a slang name for crystal methamphetamine – a stimulant drug that is swallowed, smoked or injected. It works by activating the reward pathways in the brain, producing feelings of alertness.
Here's how to use maths to pull off the craziest motorbike stunt of all time.
Sensory information comes into the system, and we initiate actions in response. Quantifying how quickly that happens is tricky – especially since our own perceptions of the timing aren't quite right.
Scientists have made the first simulated shark skin which has been found to boost swimming speed by up to 6.6%. Sharks skin…