Check out what happens when you drop a neodymium magnet down a copper pipe.
The movement of the magnet induces an electric current in the copper and with electric current comes a magnetic field, which makes the magnet attracted to it. The magnet doesn’t stick to the wall as it falls because the induced current, and its corresponding magnetic field, are perfectly distributed so that the magnet feels magnetic force equally from all sides.
The magnetic field slows the magnet, but can’t stop its fall because if the magnet stopped moving, the induced electric field would go away and the magnet would start falling again.
[Via]
https://youtu.be/twUK5YreLWk?si=SZGqB6HsbkYaGKyr Ever wondered why the price of Costco's legendary hot dogs has remained unchanged at…
StunningArt/Shutterstock Matyáš Moravec, University of St Andrews Modern physics suggests time may be an illusion.…
In a galaxy far, far away from the clutches of cancellation, a hero quietly worked…
For today’s edition of “Deal of the Day,” here are some of the best deals…
https://youtu.be/KJpYWOJNVGY?si=vsu_6JYvYYO9VBpH Ever wondered why we use those adorable yet cringey words for our loved ones?…