Tried my hand at a using the Valkyrie, I did alot better than I expected and as for the She never disappoints 😎 Wish you could see how squared the Beam is. Also the sharp point was the first thing I did, then took it off for the half sphere.
Salt Vibrations: Sound You Can SEE! Use salt and a speaker to make patterns - pretty cool science. Investigate and explain that sound is produced by vibrating objects and that pitch depends on how fast or slow the object vibrates.