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Before you became a hydroponics grower, when you heard the word "ballast," you probably only thought of the weighty materials they throw off of hot air balloons to make the balloon rise. But when you're talking about hydroponics lighting, a ballast is an interface device that uses analog or solid-state circuitry to get the right amount of electricity to your hydroponics bulbs. You can't just plug a bulb directly into electricity.

Watching Michael Phelps huffing and puffing in the pool? Checking out London 2012 Olympics boxing, diving, soccer, gymnastics, basketball, mountain biking, track and field? Personally, I find myself mesmerized by the women's beach volleyball events! And what about poor Mitt Romney, he already won the Olympic gold medal for foot in mouth and offending the Brits.