DaveE's latest activity

Especially in contrast to Hydrogen, Helium is very inert - it is the most inert element. It's two electrons exactly fill the 1s2 shell...

What you have there is half of an "H-bridge". The "To Load" terminals should be tied together, and connected to one side of the load...

OK, I guess I'm only buying name brand batteries now. Lumafield makes CT scanners for industrial engineering and production testing...

A few thoughts... 20MPa is not exceptional. E.g. 20MPa is the tension in a 1mm diameter vertical string with 1.6kg hanging from it...

I might also mention, but not teach, the z-transform. It's essentially the Laplace equivalent for discrete time systems; digital...

It is THE main tool for linear systems analysis (often non-linear systems too). Analog circuit design, filter design, control systems...

I'm not convinced of the value of such a degree.

So I guess pressure is just a measure of net force over a defined surface. The acceleration of particles in some local area? I'm...

This article (sorry, there's a paywall) describes ultrasound waves creating 20 Megapascals of negative pressure. What does that mean?

All they did was show that you could put unoxygenated perfluorocarbon liquid in someone's butt for 60 minutes without undo harm. No...

EE design in real life requires A LOT of research and study, mostly of the subtle details of the components you might use. Also study of...

I do believe I'm finished here...

Welcome to PF. In series, the motors will have the same current, and so the same torque. In parallel, if the shaft is unloaded, the...

https://www.coherent.com/materials/rare-metals/thermoelectrics

That isn't true. The entire body puts out about 70W of heat. The surface area of a hand is probably 1% of the entire body. And...