PhysicsPhysicists reveal the secret to chopping onions without crying Slicing an onion releases tear-inducing chemicals into the air, but the sharpness of the knife and the speed of the cut can affect how these droplets are expelled News
CommentThe best new science fiction books of May 2025 May’s new science fiction novels include a hot tip from our culture editor, as well as war on an alien planet from Bora Chung Culture