Find out how the hand truck's lever system can increase your strength seventy five times over on this clip from The Science Channel's, "Deconstructed."
Find out how laser printers capitalize on the properties of static electricity to create crisp documents on this clip from The Science Channel's, "Deconstructed."
This clip from The Science Channel's, "Deconstructed," examines how barcode scanners send and receive product information with the help of a laser beam.