Our solar system has a handful of bodies exhibiting some strange, highly elliptical orbits. Are they being pulled by a massive planet WAY out there beyond Neptune? Amy Shira Teitel examines what might be causing these objects to behave so oddly.
The US Defense Research Projects Agency (DARPA) has a new way to put out fires: with sound. Using specific frequencies and large speakers the agency puts out fire in "two-pronged attack." via NewScientist
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