Amazing answers to your curious questions

The SAS (Special Air Service) make routine use of sleep-deprivation exercises in their selection process, and these often feature in later training. Hallucinations during such exercises are very commo

Lynn Farram and the congregation of Christ Church, Norris Green, Liverpool

Tobacco—and, by extension, nicotine—has a reputation for health harm, but separating the two could lead to breakthroughs in fighting Covid and other illnesses. Cate Montana investigates

Rarer than diamonds and more valuable than any other coloured jewels, a fine emerald represents natural beauty at its most beguiling. Jonathan Self journeys into the lustrous world of this revered gemstone

Shoot first, ask questions later