BigOhm

No. Almost any attempt to "harvest" the charge prior to a lightning stroke will initiate the stroke, instantly vaporizing all of your equipment and probably you.

OK, so let's say you've got a typical paint roller that has a steel rod and a wooden or plastic handle. Take the handle off. Weld a washer on the...

You're jumping to an unwarranted conclusion. Consider for a minute a very artificial situation where a driveshaft rotates 4 times for each rotation of the wheel. Don't worry about what...

In general it is not practical to recover vibration energy. Consider, as an example, an auto travelling on a highway that has undulations of 0.1 m up and down about...

100 kg? Gohm, tell your little brother to quit riding on the handlebars?:roll:😁 vvishwaskumar, There are a bunch of ways of looking at this, but one you might consider is...

It's worth taking a look also at matweb.com anytime you want material properties.

It will vary greatly from country to country. Moreover, it varies greatly by type of shop and the tools they use. For example, here in the US, we expect to...

Not to be overly pedantic, but aren't birds animals?

I suspect that, for human habitation, it's probably much cheaper to get most of the drinking water from urine and sweat. Some makeup would be needed. It's true we could...

The phrase "balance problem" is sort of a wastebasket term where a lot of things get tossed in, so take it with the proverbial grain of salt. However, it does...