Ben Krasnow is just awesome, highly recommend his channel if anyone is into this kind of thing.

Femto second laser lightsabering through insect heads + electron microscope to provide an MRI style animation through the insect. All in what appears to be some guys garage done as hacker as hacker can be. It’s crazy cool.

Oh wow, he's basically built a LASIK machine and operating it _inside_ the vacuum chamber of the SEM.