Norwegian company blamed for California's hydrogen car crisis
Failure of innovative technology in real-world settings is not unheard of. But for the hydrogen car industry, it was one of the worst times ever: In 2019, California was investing…
How to Design a Real Life Hot Wheels Loop
The minimum height I get is 2.5R. So if the loop is 4 meters high (with a radius of 2 meters), the car would have to start 5 meters above…