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.

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Microscope: The Tube That Changed the World

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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.