Welcome to the 30 Day Challenge for July, where we’ll be looking at the STEM fields: Science, Technology, Engineering, and Math. I originally conceived of the as the Science & Math Challenge so those two categories will get more attention, but we will touch on all of them.

Today we want you know about your favorite YouTube maker. It can be makers whose work has an educational bent as well as those just making stuff because it’s cool.

So, what’s your favorite maker channel? What’s more important to you, impressive aesthetics or incredible engineering? Do you prefer pragmatic projects or flights of fancy? Have you ever tried to make your own version of a project you saw in a YouTube video?

Bonus: In addition to identifying your favorite channels, call out and embed any favorite vids.