Laser Turns Off the Lights

Did you know you can use light Radiation pressure from momentum of an electromagnetic wave *notice the sail is reflective because reflected light transfers twice the momentum of absorbed light this concept is even used to propel a kind NASA so if I had a strong enough laser theoretically, I can turn off the lights without even having to leave my bed

A man explains radiation pressure and shows a scientific webpage, a reflective solar sail, and a laser aimed at a wall switch. The joke is that an elaborate physics principle could theoretically let him switch off the lights from bed, turning extreme science into peak laziness. EN: A man explains radiation pressure and shows a scientific webpage, a reflective solar sail, and a laser aimed at a wall switch. The joke is that an elaborate physics principle could theoretically let him switch off the lights from bed, turning extreme science into peak laziness.

Did you know you can use light to push things? Electromagnetic radiation exerts a force called radiation pressure when it hits an object. This concept is even used to propel a kind of spacecraft called a solar sail. So if I had a strong enough laser, and a sensitive enough light switch, theoretically I can turn off the lights without even having to leave my bed.

• @eternalclassic / 19374 2022-09-11