Technology | green 'Green' Gizmos You Don't Need These gizmos won't improve the world By Kevin Spak Posted Dec 12, 2009 9:09 AM CST Copied Behold the energy curtain. It soaks up solar power, then glows at night for free lighting! One catch: it needs to be down to collect energy, so you'll need to use electric lights all day. See 4 more photos Sure, we’re all trying to save energy and help the environment, but some of the “green” gadgets out there are just plain stupid. Here are some of the worst offenders—wind-up razors, energy monitors that Tweet, etc.—via the Business Insider. Read These Next 11 people hurt in a "brutal act of violence" in Michigan. We knew Letterman would pipe up about Colbert eventually. A parent's nightmare, in a white cardboard box. Now we know why Ghislaine Maxwell may have opened up to the DOJ. Report an error