Megaproject to divert River in Fargo

https://youtu.be/-4FmTyqES_g?is=0yNkutH-Nqlzjxhk

Cerebellum

80% of the total #neurons in the brain are in the cerebellum. It is not purely a motor system - many insufficiently with the entire neocortex. It is now thought to coordinate and "smooth" the output of all brain regions - regulating emotion, or planning a smooth sentence/conversation. 

Episode "Song of the cerebellum" Radiolab. 

https://radiolab.org/podcast/song-of-the-cerebellum

60 Words

https://radiolab.org/podcast/ea1c84b585e58d5befeefebf

Really interesting podcast that studies the actual meaning of declaring war after 9/11, and how the words declaring war have been used and misused. 

Panthalassa wave generator - now I get it.

https://youtu.be/VcmDN4T90Fw?is=cjjwMY3zysF-Uv2E

These untethered wave generators incorporate AI data centers, so they float across the ocean sending AI compute results to the web, and use ocean water for passive cooling of the computer chips. 

This eliminates traditional electrical distribution entirely. The electricity generated by the ocean's waves is consumed entirely on-site by modular AI data centers housed right inside the generator nodes.

1:58 "Panthalassa" is the name of the mega-ocean that once surrounded the conglomerate continent Pangea. 

Huge N Korean scam of fake IT jobs and ID theft.

https://youtu.be/RUhdmIFpb-w?is=tu1CXtWXeSNoFl_4

This is a thorough investigation by the Wall Street Journal into an extensive scheme of raising money for the North Korean government by enslaving workers who apply for US jobs using either stolen identities or actual US middlemen criminals who share the salary for the work done remotely online. Hundreds of millions of dollars. Incredibly elaborate. 

Breakthrough 36 passenger electric passenger plane for short-haul 2hr flights

 

https://youtu.be/nM86DBOqgPM?si=nPszTyfr-EOOde_n

2:53 Jet engines are far more complex - take the turbine blades, for example which must be grown as a single crystal of a nickel super-alloy to withstand the heat and physical forces. 

https://youtu.be/QtxVdC7pBQM?is=SCbLua2xNvguGoTK

5:30 they built a 400kW electric motor. (Standard Tesla motors are 137 - 200 kW.)

7:45 actuators: Boeing aircraft have 2 or more backup systems to drive hydraulic systems (electric pump, ram-air turbine in case of total engine failure) — what backup systems will this aircraft have for flight control systems? Maybe a hydraulic pump run by the hybrid engine. 

9:45 hardest design challenge was dealing with a diverted flight destination: 1 in every 1000 flights is diverted. That's why they needed a hybrid engine design. 

12:55 first flight

Beautiful Avata 2 drone footage

https://youtu.be/rTNDEUOHKVI?is=rRaWoIlGsW_RJDbL

Examples of ongoing human evolution

https://youtu.be/5J6ZEUKmSl0?is=9R6STwpo7FoCDWN8

Myriad detection uses of fiberoptic cable

https://youtu.be/8939X_kFwG4?is=jGBXjUpU9_xcxLFn

So intriguing. Detecting back-scatter reflections that occur at temperature or pressure points in fiberoptic cable can be used to efficiently monitor oil boreholes, seismic activity, elephants walking onto Indian railroads, whales singing in the ocean, and tankers or submarines. Telecom companies often lay down excess cable capacity, and these as-yet unused fibers can be used for such monitoring. 

Tesla ramps up production

https://youtu.be/MvLQ0ygZoqM?is=CNria5Z1NT3uFMfT

Lofty goals to increase production rates to unheard-of rates. "Unboxed production," which really just means parallel manufacturing assembly lines, is explained at 12:32. 

Best explanation of JPEG

https://youtu.be/0me3guauqOU?is=K4Bpw4XNWvZMtrfl

Very clear detailed description of how compression happens mathematically. 

Best explanation of MP3 music compression

https://youtu.be/jFjDoELxonU?is=iC_N0zX5G_9o8f38

There are a lot of videos out there, but this poorly-edited one is actually one of the better ones. 

Also, useful to view this description of how human hearing functions, at 1:31 in this video. 

https://youtu.be/KGZ0een8vSE?si=nzaiSKXDrpCDIG8U

Lidar satellites see more

https://youtu.be/UKLuei1CnZY?is=ZKH-uyd20wjBr7pU

Unimpeded by clouds or smoke, LIDAR satellites pan across Earth's entire surface every 12 days. 2:16 Successive images can be compared to observe sub-mm movement. (That implies the satellite plane above the earth is more stable than a sensor on the ground itself.)

4:09 They mapped the interior of a pyramid by listening to it vibrate [from background seismic vibrations] from space. 

Man who made counterfeit $100 bills describes his journey through crime and punishment

https://youtu.be/FGAVpJfG1yQ?is=NlNNU3ase1EYAOy1

This man started counterfeiting at age 19 and spent months protecting his craft and avoiding "bill checker" methods for years and millions of dollars. He used an eye-shadow product to mimic the shiny ink, a fine-tipped glue nozzle to make raised lines, and sprayed a chemical to make the bill-checker pen show the correct color. Ironically, he has to go to bookstores and steal blank pages from Bibles to get the right paper quality. 

World-record most massive vehicle

https://youtu.be/U8772vEfUu8?is=eaUExVAGMvn7h7r0

It harvests a low-grade coal in Germany that's uneconomical unless mind at a huge scale for nearby use in generating power.