Recent content by Sara Samuel

It's a schoolwork project of a Storage Device Systems class. I have to prepare a paper and a 15 min presentation on one of these energy storage topics. My search yielded few sites that touch on the subject without going deep into details. Maybe the only abundant topic is the magnetic bearings...

Energy Storage in Flywheels: I am searching for resources on couple of topics 1) Types of frictions in energy storage flywheels -aerodynamic, rotational ... etc. and 2) Motor/Generator selection for energy storage flywheels. Any links or references will be appreciated.

Thanks a lot!

Homework Statement On the Earth the Sun appears to rise and set about 365 times in one year. During the same 365 days, how many times does the Earth rotate on its axis relative to a distant star (a star beyond the Sun and out of our solar system)? Homework Equations The Attempt...