Jellyfish Stinging In Microscopic Slow Motion

Want to see something awesome? Smarter Every Day has captured a jellyfish sting on camera for the very first time! Normally such a process if too fast to see, but advancements in technology have revealed how it actually works.

Microscope: The Tube That Changed the World


Think health care is bad now? Imagine what it was like before doctors knew what cells were. SciShow explains the background of the microscope and its impact.