Where did our numbers come from?
Why do our numbers look the way they look? Why do we count the way we count? These questions answered and many more in this video looking at where English got its numbering system.
Our Arabic numerals are actually Hind-Arabic numeral, and were borrowed from India by mathematicians in the Arab world. Through trade with Europe, they eventually overtook Roman numerals as the continent's dominant numerical system.
In this video we also look at the counting systems used by the ancient Egyptians, the Babylonians, the Maya and the Inca.
How This Skyscraper Nearly Collapsed
"How a single phone call from a student helped uncover a flaw that nearly toppled Citicorp."
The video tells the story of how the structural engineer fixes a design flaw that has been overlooked by himself, after the building has been completed.
Hawaiian Goby Fish Climbing Waterfalls (3:02)
Hawaii’s upland rivers provide a safe haven from predators for young gobies while also acting as a resource for food. To access these waters, gobies must face a treacherous climb, pulling themselves up an enormous waterfall using the suction from their mouths and fins. The journey can take days and around 99 percent of these tiny fish perish before they reach the top.
Courtesy of PBS
Whale shark taking back HIS food from a fishing net (0:46)
Courtesy of Conservation International🐋
Tardigrade walking across a microscope slide
614 likes, 16 comments - microbin_ on April 16, 2023: "A tardigrade slowly walking across a microscope slide, their little claws help them hold onto pretty much anything:) #tardigrade #interestingasfuck #meme".
Credit to @microbin_
RSA ANIMATE: Drive: The surprising truth about what motivates us
tl;dw: Autonomy, mastery and purpose is essential to happiness. Had all three, in spades, at a previous job. Left for double pay and benefits, total misery after losing them.
First time I watched, "Holy shit! He's about to talk about Linux!", and he did. "Hey! That's how Wikipedia works!", and it was.
I think on this every time I see comments about how someone isn't paid enough to give a shit, work harder. I was making $82K at my last job, miserable and struggled to understand what my damned problem was. Never knew employers existed that treated their people so well. Wife kept telling me I should be thankful, and I was! Yet I was deeply unhappy.
Now I'm driving a forklift and slinging mulch, satisfied as a pig in shit! Weird? I get it after internalizing this video.
