Engineers at Tesla traded out the previous induction motor for the new IPM-SynRM with a permanent magnet rotor. This terrific video explains why. It all comes down to efficiency.
Image: YouTube / Learn Engineering
Excellent explainer on Tesla's new motor
Maker tests his DIY grappling gun
Grappling guns appear in movies and video games all the time, but a real-world arm-worn grappling gun turns out to be quite an interesting engineering challenge for JT at Built IRL. Watch the epic year-long series of trial and error. Part 1 Part 2 Part 3 Interlude: Part 4 Part 5: Image: YouTube / Built… READ THE REST
Kit converts a regular bike into a snowbike
This "Electric SnowBike Kit" by the Canadian firm ENVO lets you replace the back wheel of your bike with a powered snowmobile-style tread, and the front with a snowboard. The upshot is just delightfully bonkers, as the action in that video will attest. Granted, kitting out the whole bike with the treads, board and battery… READ THE REST
Here are the chemistry stories that delighted the editors of Chemical and Engineering News this year
Deep-sea fish that have evolved non-reflective ultra-black skin to avoid being eaten by other fish. Nanoscale linked chains. Locust pheromones that encourage flocking behavior. The world's brightest fluorescent material. Dead bacteria that participate with living bacteria in swarms. These are a few of Chemical and Engineering News' favorite things. READ THE REST
With this book summary app, you can read an entire best-selling book in 4 minutes
It's a sad fact of modern life. Most people just don't read anymore. And, for those who do make the effort to dive into a new book once in a while, life's busy nature probably means it could take several days, to a few weeks, to maybe even a month or two to finally complete… READ THE REST
The PURO²XYGEN P500 Air Purifier makes sure your air is healthy and breathable
Once upon a time, air purifiers were mostly only found in the homes of the elderly, the environmentally sensitive, and the all-out germaphobe. Of course, after 2020, there's been renewed attention paid to everything that wafts through the air in everyone's homes and office spaces. Where health is concerned, nobody is skimping now. That massive… READ THE REST
This bioluminescent orb glows every night – and will keep you utterly transfixed
Bioluminescence is one of those products of nature that truly makes the average person step back and marvel at the absolute wonder of our world. Found in many types of aquatic life, science explains it as molecules in the body of a living organism that produce light, often when exposed to oxygen. While it may… READ THE REST