Amazing answers to your curious questions

What are the rarest minerals on Earth? These are some of the hardest to find on the planet

How high up is the lowest level of ...

What doesn’t fuel us, may still be fuel! Did you know that researchers are turning food waste into sustainable plane fuel? With heat and pressure, dinner scraps can be transformed into an oil which in

QAre there any statistics on how many people eat their ‘five a day’ fruit of veg? A There were some figures released last year by the UK Government from its national diet and nutrition survey, between

Clouds of noxious gas, stink bombs and purple smokescreens may sound like schoolboy pranks, but the animal world is just as capable of executing arresting chemical warfare, says Deborah Nicholls-Lee