The Pentagon

src: penneyvanderbilt.files.wordpress.com The Pentagon is the headquarters of the United States Department of Defense, located in Arlington...

Pennco Tech

src: www.accsc.org Pennco Tech is a for-profit technical school with locations in Bristol, Pennsylvania, and Blackwood, New Jersey. It was ...

Wig wag (washing machines)

src: i.ytimg.com The wig-wag is the common name for the unusual solenoid mechanism used in belt-drive washing machines made by Whirlpool, K...

Indoor air quality

src: thumbnails-visually.netdna-ssl.com Indoor air quality ( IAQ ) is a term which refers to the air quality within and around buildings an...

Backflow prevention device

src: www.abpa.org A backflow prevention device is used to protect potable water supplies from contamination or pollution due to backflow. ...