I saw these on an episode of The Action Lab on YouTube. The black one is very interesting – it seems to make a good frictionless bearing. https://www.magnetics.com/group_smartmag.asp
Archive for September, 2023:
2023-09-18 FM Transmitter Uses Square Loop of Twisted Pair Wire
I’ve already shown the round loop FM microphone that I posted here – it used 12AWG solid bare copper house wire. I wanted to make a transmitter using loop out of thinner wire, which is more common. But thinner wire moves around too easily causing the frequency to change. So I twisted together three strands
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2023-09-17 Hydrogen-powered Airplanes
Three or so different aircraft pilot developments explained. Mostly fuel cell. https://arstechnica.com/science/2023/08/hydrogen-powered-planes-almost-ready-for-takeoff/
2023-09-16 Dr. Tyson On Student Debt
Some small amount of debt might be acceptable, such as credit cards. But the student debt os far too onerous and is outright economic slavery. So I don’t agree fully.
2023-09-16 Liquid H2 Pump Tested, Reliable
Wow! 90 Megapascals is 888 atmospheres or 13,000 PSI. And this pump puts out 160 kilograms of LH2 per hour. That’s a lot of liquid hydrogen! This is in Livermore, California. FirstElement Fuel and MHI Complete the Reliability Testing of Liquid Hydrogen Pump
2023-09-15 Weed Zapping Autonomous Robot Vehicles
No more herbicides – weed killing chemicals! https://www.facebook.com/reel/304491815480199?mibextid=9drbnH
2023-09-16 Tesla Gigacasting Whole Frame
Reuters article about using 3D printing sand, slower casting speed and even a 16000 ton Gigapress. All to make a lower cost EV. https://www.ksl.com/article/50730353/gigacasting-20-tesla-reinvents-carmaking-with-quiet-breakthrough Original article https://www.reuters.com/technology/gigacasting-20-tesla-reinvents-carmaking-with-quiet-breakthrough-2023-09-14/
2023-09-14 Calif To Require Scope 3 Emissions Disclosure SB 253
This is very important. Billion$ companies will be required to disclose their Scope 3 Emissions. Quote: “”Information is a disinfectant for propaganda of all types. The fossil fuel industry has been deliberately lying to American citizens and the people of the world about its role in global heating for more than 50 years. Being able
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2023-09-14 Black Mass Matters! The New Black Gold
The black mass is the concentrated lithium and other metals left when lithium EV batteries are recycled into their parts. This black mass is then processed along with other raw materials to make new batteries. There are these Chicken Littles who say that EV batteries are too expensive, then contradict themselves by saying the EV
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2023-09-13 EV charging Uses Less kWh Than Water Heating In Homes
Less than Air conditioning and less than heating. EV Charging Consumed Less Energy Than Water Heating In A Typical US Household In 2020
