> Picking up slivers of silly putty from the carpeted floor was not fun.
One of my science teachers in high school told me about the time she got a chunk of sodium and a 50 gallon barrel of water. She threw the sodium into the water. It blew up as expected. But it also fragmented into a million pieces, and those pieces hit the dewy morning grass and also exploded, triggering a chain reaction. I think she said the students had to run around and stomp out a bunch of little sodium fires. That demo was not done the next year.
> if you drop something through it, it takes {some time}
This is totally unrelated to your story, but it reminds me of the demonstration where you take a strong magnet and drop it through a copper tube. It takes forever to reach the bottom (because the moving magnet induces a current in the copper pipe, which produces a magnetic field in the opposite direction). Honestly, it's probably the one science demo that blew my mind when I saw it. It's SO slow. And we had already learned about the math behind it, but was amazing to see in practice.
One of my science teachers in high school told me about the time she got a chunk of sodium and a 50 gallon barrel of water. She threw the sodium into the water. It blew up as expected. But it also fragmented into a million pieces, and those pieces hit the dewy morning grass and also exploded, triggering a chain reaction. I think she said the students had to run around and stomp out a bunch of little sodium fires. That demo was not done the next year.
> if you drop something through it, it takes {some time}
This is totally unrelated to your story, but it reminds me of the demonstration where you take a strong magnet and drop it through a copper tube. It takes forever to reach the bottom (because the moving magnet induces a current in the copper pipe, which produces a magnetic field in the opposite direction). Honestly, it's probably the one science demo that blew my mind when I saw it. It's SO slow. And we had already learned about the math behind it, but was amazing to see in practice.