Metals have a crystal structure. But they're not one big crystal, they're lots of small crystals called grains. The size of the grains affects the physical properties of the metal, like hardness, toughness,... continue reading

posted by newtboy 6 days 18 hours 15 minutes ago • 130 views • 8:45

It's hard to know if she actually had a coherent point to make here--it sure didn't look like it. At the least, she was poorly served by her staff, which didn't educate her, didn't program her questions,... continue reading

posted by SFOGuy 1 month 4 weeks ago • 1,809 views • 2:12

Presidential Historian Tom Naftali explains a CSPAN survey that asked 142 presidential historians and historical observers of the presidency to rate all the US presidents. Abraham Lincoln came in at the... continue reading

posted by newtboy 3 months 2 weeks ago • 11 views • 3:44

The multiverse hypothesis or theory holds that a group of multiple universes (possibly infinite universes) comprise everything that exists: The entirety of space, time, matter, energy, information, and... continue reading

posted by BSR 4 months 2 weeks ago • 133 views • 10:03

00:00​ Two Planets 02:00​ Echoes 02:18​ Mysteries of Life & Humanity 05:33​ Experimental Sounds 07:13​ New Direction 08:26​ Nothings 10:43​ Previously unheard sounds 14:54​ The Ping ... continue reading

posted by eric3579 5 months 1 week ago • 415 views • 25:46

Beau explains why the strobe light the cop was using that shot Adam Toledo probably contributed to him firing on an unarmed child.

posted by w1ndex 6 months ago • 24 views • 4:11

I highly recommend listening to the song first, or at least the first half. As a drummer for 32 years (8 formally on actual drums / in public, the rest on available surfaces and arguably in rhythm games),... continue reading

posted by moonsammy 6 months ago • 493 views • 10:15

Far more than you ever needed to know about dishwashers. Ever wonder how dishwashers work? Are you ever bummed by the performance of yours? Well, this video can answer your question and possibly provide... continue reading

posted by blacklotus90 10 months ago • 413 views • 32:35

"Why some Americans’ votes count more than others. Watch more of our election coverage: http://vox.com/ElectionVideos In the 2000 US presidential election, the Democratic candidate got half a million... continue reading

posted by ant 11 months 3 weeks ago • 84 views • 8:09

An amazingly thorough deep dive into the acoustic engineering, materials science, and construction of a beautiful pair of speakers. "We construct a pair of large Voigt speakers. I explain the principles... continue reading

posted by blacklotus90 11 months 3 weeks ago • 296 views • 52:56

Morgan explains the subtle difference between these two personality types

"What different clouds mean, explained for kids. Welcome to our first-ever week of programming for kids! If you’re standing outside and you look up, you’ll likely see something familiar above... continue reading

posted by ant 1 year 1 month 2 weeks ago • 66 views • 8:03

This video explains the process by which I created the flattest CPU in the world, bringing a Ryzen 3950x to within 0.3 microns of flatness error, two orders of magnitude more accurate than what is possible... continue reading

posted by Mordhaus 1 year 2 months 1 week ago • 59 views • 10:09

Red sprites, secondary jets and newly discovered green afterglow called "ghosts" triggered by red sprites. A dozen vibrant red sprites were recorded on this evening and only two events had the green afterglow.... continue reading

posted by newtboy 1 year 2 months 3 weeks ago • 949 views • 2:32

YouTube description: Artists have abandoned artworks for many reasons throughout history. Guest host John Green shares some of his favorite unfinished artworks and explains why they resonate with him... continue reading

posted by Aard Vark (oritteropo) 1 year 3 months 3 weeks ago • 414 views • 9:42

Tom Scott explains why there's a few words that you just cannot use as file names or directories in Windows.

posted by w1ndex 1 year 6 months ago • 1,119 views • 8:03