simon20_08 You have energy stored in the form of a weight held over some datum. The units are ft-lb's (or kg-m excuse me...I'm an old school American engineer). You intend...

Occam's razor anyone? Not to rain on anyone's parade, but there are a lot of very high efficiency methods to recharge a battery. Blasting microwaves across the territory is not...

For small objects you can use a microswitch. It is simply a small switch which may have NO or NC contacts there are many contact geometries. For non-contact switching you...

To follow the template: *Engineering Trade: structural engineering degree/once registered PE in petroleum engineering/now electrical-mechanical engineer in sensor design and manufacturing *Occupation: CEO, though all phases of new product design...