PhysicsPhysicists have worked out how to melt any material A new equation shows a surprisingly simple relationship between pressure and the temperature needed to melt any solid substance into a liquid 快猫短视频
Physics鈥楽ound laser鈥 is the most powerful ever made A new device uses a reflective cavity, a tiny bead and an electrode to create a laser beam of sound particles ten times more powerful and much narrower than other 鈥減honon lasers鈥 快猫短视频