Last Word
How do two photons become quantum entangled – and can I do it at home?
Regulars
Last word
New Scientist's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com
Issue no. 3538 published 12 April 2025
