We’ve finally cracked how to make truly random numbers

Eeny, meeny, miny, mo, catch a tiger by the toe – so the rhyme goes. But even children know that counting-out rhymes like this are no help at making a truly random choice. Perhaps you remember when you first realised you could game the outcome by carefully choosing the starting point? Flipping a coin, or […]
How to wrap your mind around the real multiverse

Science fiction’s visions of multiple universes differ from the real theory Science Photo Library / Alamy The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the universe. You can sign up […]