Why not buy the cheap LED Christmas lights?

LED lights require a DC voltage to operate. How you get the DC makes all the difference in the world.  To better understand this, we need to have a basic understanding of what rectifier and diodes are.  A rectifier is a device that simply converts alternating current (AC) into direct current (DC).  Alternating current is [...]

Charge a deposit on a good idea?

         Maybe a tax on a bad idea might be more appropriate.   With the growing concern over contamination caused by the improper disposal of CFL’s (compact fluorescent lights), the suggestion of charging a 25 or 50 cent deposit per bulb has come up.  Which, on the surface sounds like a fairly good idea.  [...]

Follow

Get every new post delivered to your Inbox.