In a testament to the crows’ intelligence (or perhaps just the deliciousness of mealworms), the birds all caught on ...

Mathematicians have finally solved a geometry problem that has puzzled the field for decades ... Mathematician Roy Davies proved the conjecture in 2D in 1971. But whether a 3D proof existed had ...

"I joined the air force 35 years ago, aged 18, and went straight to Germany, based on a Tornado aircraft," says British Air Commodore Andy Turk, who is now deputy commander of the Nato Airborne ...