while we were on the bus today a friend came up with the plan to get a group of people and text this one kid who was in class because HE ALWAYS HAS THE SOUND ON and we all just started to send mad shit to him so i wonder how his class was with his phone going off constantly
he sent me “FUCK YOU” 4104 times
Is his name senor little meat in your phone?
no its señor little meat
DIY Science: Magic with Eddy Currents
No matter how many times I watch the video above, it still amazes me! First, a coin and a bottle are dropped down an aluminum tube. They quickly fall through the tube, as expected. But when a magnet is inserted into the tube, it falls slowly, floating gracefully down the length of the tube. Try this out for yourself!
You will need an aluminum, copper, or brass pipe and neodymium magnet. Drop the magnet down the pipe to observe the phenomenon. Try dropping other objects down the tube, and dropping the magnet down a PVC pipe or cardboard tube. Why does the magnet fall slowly down the aluminum piping?
The answer to this mystery lies in eddy currents. As the magnet falls down the pipe, the magnetic field changes, creating eddy currents (think of them as “whirlpools” in electromagnetic fields). These eddy currents have their own magnetic fields that opposes the magnet’s fall. So even though we can’t see magnetic fields with our eyes, we can observe their behaviors—pretty cool!