Deep groove ball bearings offer longer life, less noise and lower friction

"We wouldn't need to pillage the environment for the rare metals for batteries, magnets, or catalisers". Batteries don't use rare...

The author omits two blindingly obvious issues: the UK's diminished position in geopolitics, catalysed by the insanity of Brexit, and the serial...

I hope they have assessed how easy it is to shield a drone against the attack. Hopefully the shielding would add too much weight.