Sprakle
The specific moves and calling during the dances make it so easy for beginners to pick it up, but there’s a lot of flair and flourishes that advanced dancers can add to keep things interesting.
Since starting a couple years ago I’ve made so many incredible friends, gone to dance camps, and began calling my own dances! I never expected to be on stage with a microphone but now it almost feels normal to have a hundred people act out the dance moves I give them.
You can buy them for about $50 from some science education sites. It's quite a conversation starter, as long as you're ready to sit in the dark for 15 minutes.
But an especially effective project was an experiment to determine exactly what window covering would reduce heating from direct sunlight the most. We could only cover the inside of windows, and I had assumed aluminum foil would work best, but wasn’t sure.
I set up a test of various materials and stuck them to my window with a thermoprobe and some insulation. I tested printer paper, various foils, and plastics.
Plain old white printer ended up performing the best, and aluminum foil being significantly worse. Best part about paper was it still let a lot of visible light in, while reflecting IR.
Hope this helps someone a summer heats up again!
Is that true? If so, how to remote code execution exploits like this work?