MANAUS, Brazil, Oct 28 (Reuters) - Deep in Brazil's Amazon, scientists have built a "time machine" pumping carbon dioxide into the rainforest canopy to simulate atmospheric conditions predicted for ...
The Why Files on MSN
He built a time machine in his backyard… then vanished
Mike Marcum didn’t have a lab, funding, or a PhD. Just a pile of salvaged electronics — and a theory. One night in Missouri, he fired up his homemade device. It formed a vortex. He tossed in a screw.
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
反馈