AC

AC

High Efficiency Hybrid A/C Units and Related Hardware Additional technical documents on the Hybrid A/C units below. Click on item names in green for a data sheet or picture of the product. Item Manufacturer Model # Condition MSRP Price Complete System: Hybrid A/C...
78 MPPG in a Passat TDI

78 MPPG in a Passat TDI

It’s not an official government rating, but it’s pretty impressive nonetheless: 78 miles per petroleum gallon (MPPG) in a Volkswagen Passat TDI diesel. It was anointed a Guinness World Record, so it’s more than your neighbor bragging about his...
Intel ISEF Awards biodiesel… again

Intel ISEF Awards biodiesel… again

For a fifth-grade science fair, Evie Sobczak found that the acid in fruit could power clocks; she connected a cut-up orange to a clock with wire and watched it tick. In seventh grade, she generated power by engineering paddles that could harness wind. And in eighth...

It Couldn’t Be Done

It Couldn’t Be Done, by Edgar Albert Guest Somebody said that it couldn’t be done But he with a chuckle replied That “maybe it couldn’t,” but he would be one Who wouldn’t say so till he’d tried. So he buckled right in with the trace of a grin On his face. If he...

400ppm Threshhold

Scientists are warning the planet has now reached a grim climate milestone not seen for two or three million years. The National Oceanic and Atmospheric Administration says the amount of heat-trapping carbon dioxide in the atmosphere has topped 400 parts per million....