Archive for the ‘electricity’ Category
Review of the Sun Joe CJ603E Wood Chipper
Ever since I first saw them in a catalog years ago I have wanted own one of those garden waste chippers. Those I saw 30 years ago were made of metal and cost far more than I could justify paying. But consumer goods are getting cheaper and home wood chippers are no exception. One reason they are cheaper is that the stamped and folded bodies of heavy-gauge sheet metal have been replaced by molded plastic. Still the prices seemed too low for a useful machine. Surely they would break and jam unless the openings had been made deliberately small enough that nothing which would put a strain in the mechanism could be inserted in which case the machine would be of little practical value.
Electrical Power and Power Loss
Basic Electrical Units
A volt is a unit of electrical potential. Electrical potential in turn is the force which a power source (such as a battery) applies to a connected device in order to push electrons through it. Electrical potential (voltage) is comperable to the presure which a pump applies to a plumbing system in order to push water through the pipes.