Links

https://thetruesize.com/ This is a fun website that lets you move any state/country around the world to compare it’s size. Most maps you see do not take int account that the further away from the equator you get the less distance needed to go around the world, this does that and sizes comparisons correctly by area.
https://www.youtube.com/watch?v=q85lZdNStGs This is a cool move that not enough companies are taking. The company has published 3D printable models for replacement parts for their product.
https://blog.rahix.de/design-for-3d-printing/ This is a master class on designing 3D printed parts, It’s easily going down as my reference to anyone getting into 3D printing or those who may not have considered some aspects for 3D printed parts this is well worth the read.
https://youtu.be/VXcuryyRGbo?si=jJBhNuSPigSRgwh9 This is an awesome mechanism called a trochoidal roller pinion rack transmission, it’s a combination of a couple of interesting mechanical designs.
https://www.frontiersin.org/news/2025/05/23/street-smarts-hawk-use-traffic-signals-hunting This is interesting a Cooper’s hawk seemingly realized the connection between the street lights and cars stopping to aid in hunting.
https://www.youtube.com/watch?v=q_6JcSu2UGE Galileo is the European GPS satellite cluster that is used for navigation in may parts of the world. The plans for the next iteration of them will enable even more precision.
https://www.youtube.com/watch?v=avpn8rIkkRY When we think of a vacuum, most think of the household appliance, some around here may think of vacuum testing or vacuum work holdering. This is a very interesting piece of equipment that uses vacuum to read a tape drive.
https://www.youtube.com/watch?v=dXIkUkwzTQU Wrap this month off with an a great channel, this time he’s making a edgeless brownie pan.
https://youtu.be/M6XIgdS1rzs?si=kCeIkBhtuIj7-Brl This is a pretty cool video that touches on a bunch of cool things; making magnets, ball mill, diy magnetometer

Cool historical fact

https://www.construction-physics.com/p/how-the-us-built-5000-ships-in-wwii If you consider how big a boat is it’s no wonder it takes thousands of hours to make even a small boat. This is a neat article showing the construction rates while we we’re in WWII, it’s interesting how at the start the time was around 200days for a boat, and just a year later that was close to 50days and held there for years.