A Tesla coil easily makes it to the top spot on our list of “Mad Scientist” equipment we want for the lab, second only to maybe a Jacob’s Ladder. Even then, it’s kind of unfair advantage because you ...

And makes a slinkity sound? Unless you have somehow lived an existence free of a certain metal coil toy, you probably can figure out that this refers to the Slinky. The classic toy -- the one that's ...