Drone Delivery

Mark Rober produces about 10 interesting and crazy videos a year. This is a cool idea for drone delivery.

https://youtu.be/DOWDNBu9DkU

Supply Chain, Walmart Adapting.

You may have noticed the change in Walmart recently to a more warehouse like organization. Most items can be located on the Walmart app on your phone.

https://www.zerohedge.com/markets/walmart-wants-beat-amazon-its-own-game

Materials Science Stories

This is the holy grail of materials science. A room temperature semi-conductor. It has a history like cold fusion, big promises but never delivered. May now it will.

https://www.sciencenews.org/article/superconductor-room-temperature-scrutiny

3D Printing metal is very difficult.

https://techxplore.com/news/2023-03-metal-3d-printing-conundrum-propel-technology.html

Rare earth magnets are really important these days. In point of fact, the "rare" does not refer to its abundance. There are rare earths all over the place. Just a lack of refining capacity is the issue here.

https://japannews.yomiuri.co.jp/world/asia-pacific/20230405-101753/