Biophysics is the science that asks how the rules of physics show up inside living things. Physics is about force, energy, light, heat, and movement. Biology is about plants, animals, cells, and the body. Put them together and you get questions like: how does a muscle pull? how does the eye catch light? how does a nerve send a signal? how does blood move?

Biophysics is the science that asks how the rules of physics show up inside living thingsbiophysics是一門探討物理法則如何在生物體內運作的科學 Physics is about force, energy, light, heat, and movement物理學談的是力、能量、光、熱和運動 Biology is about plants, animals, cells, and the body生物學談的是植物、動物、細胞和身體 Put them together and you get questions like把這兩者放在一起，你就會得到這樣的問題 how does a muscle pull肌肉是怎麼收縮出力的 how does the eye catch light眼睛是怎麼捕捉光線的 how does a nerve send a signal神經是怎麼傳送訊號的 how does blood move血液是怎麼流動的

People who do this work are scientists, usually in a university or a hospital lab. The word is formal. You will meet it on course names and papers, not in the market.

People who do this work are scientists做這種工作的人是科學家 usually in a university or a hospital lab通常在大學或醫院的實驗室裡 The word is formal這個字很正式 You will meet it on course names and papers你會在課程名稱和論文裡遇到它 not in the market而不是在市場裡

Though actually, a lot of modern hospital tools — the ones that use magnets, sound, or radiation to look inside the body — rest on this kind of thinking, even when nobody says the word out loud.

Though actually不過其實 a lot of modern hospital tools很多現代醫院的儀器 the ones that use magnets, sound, or radiation to look inside the body就是那些用磁力、聲波或輻射來看身體內部的儀器 rest on this kind of thinking都建立在這種思考方式上 even when nobody says the word out loud即使沒有人把這個字說出口

It is not the same as biochemistry, which looks at the chemistry of life. Biophysics cares more about force, energy, and physical laws inside living systems.

It is not the same as biochemistry它跟biochemistry（生物化學）不一樣 which looks at the chemistry of lifebiochemistry看的是生命的化學 Biophysics cares more about force, energy, and physical laws inside living systemsbiophysics更關心的是生物系統裡的力、能量和物理法則