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Energy-Free AC? Heat-Reflecting Wrap Could Cool Without Power
A heat-reflecting, futuristic supermaterial that looks like a roll of plastic wrap could one day cool both houses and power plants without using any energy, according to a new study.
Tweaked DNA Snippets Could Become Tiny Electrical 'On' Switches
Teensy "living" circuits based on DNA could lead to new ways for scientists to look inside cells and even see chemical reactions such as photosynthesis. However, to create such DNA devices, there has to be a way to run electricity through them. Until now, that has been a limiting factor.