cold war

How Russian Spy Ring Hid Secret Messages On The Web

Invisible ink, buried money and radio transmission: in many ways it seems the Russian spy ring recently apprehended by the US Department of Justice (DOJ) took its cues from old-school Soviet operatives. With one notable exception: in the case of the classic spy “dead drop” – a location used to secretly pass items between two

7 Things That Baffle Scientists and Engineers

Ninety-six per cent of the universe is missing. The effects of homeopathy don’t go away under rigorous scientific conditions. The laws of nature aren’t what they used to be.