ArcAttack is a band that performs at the Bay Area Maker Fare, among other places. They feature massive signing Telsa coils. (Here’s a video I show when I saw ArcAttack in 2013.) Singing Telsa coils are awesome. Everyone knows that. Which is why I found when Dianna Cowern, the Physics Girl, visited the band ArcAttack, electromagnets are just as cool. In addition to talking about their music, ArcAttack’s Joe does something amazing. He splits an aluminum soda can with just an electromagnet.

There are a few other neat tricks and some slow-motion stuff too. Near the end, he compresses a quarter with the scariest magnet setup I’ve ever seen. This video is definitely worth watching if you like anything related to Tesla coils–or electricity!

A tediously accurate scale model of the solar system

scrolling scale model of solar system

When I was growing up, I watched a lot of Star Trek. Over time I’ve looked into other Sci-Fi series. The occasional hit, like the reimaged Battlestar Galactica, caught my attention. But, for me, the voyages of the Enterprise defined “space” to me. Or the stories on Deep Space Nine. (There are no other Star Treks.)

Seeing a new alien or planet each week warps (see what I did there?) your mind to think that space is relatively small. But when you consider it takes almost 500 seconds for the light to travel from the Sun to the Earth, you begin to realize space is freaking huge.

That’s why this scrolling model of the solar system is so fantastic. It offers a unique sense of how “big” the universe really is–at least our solar system. Check it out on