DARK WORLD

10 Communities Of People Who Live Underground As crazy as it sounds, certain people deliberately choose to live underground. Sometimes, these people form entire  communities  consisting of thousands of people. Usually, they are homeless and have few options available. At other times, they are forced to live underground due to circumstances beyond their control or because they cannot afford aboveground homes. 10 The Rat Tribe Of China Photo credit:  aljazeera.com Over one million  Chinese  citizens (or 5 percent of the people who live in Beijing) live in windowless, overcrowded basements and underground air raid shelters. These people, called the rat tribe ( shuzu ), are ambitious youths who have abandoned their towns and villages to work in Beijing. The air raid shelters were dug during the Sino-Soviet border war of 1969 on the orders of  Chairman Mao Tse-tung . After Mao’s death, the new government ordered that the shelters be commerci...

10 Amazing New Techniques Used To Reveal Scientific Mysteries    New technologies and innovations linked to old ones are unlocking  scientific mysteries  in ways never thought possible. These revolutionary new techniques are allowing unprecedented insight into the natural world. Whether they reveal an obscure and unseen galaxy billions of light-years away or a cryptic message from millennia ago, these pioneering methods are game changers in their fields. 10 Photographing Hidden Spaces With Wi-Fi Photo credit:  sciencemag.org Researchers wanted to see the world “through  Wi-Fi  eyes,” so they placed a cross made of aluminum foil, a Wi-Fi emitter, and two receivers (one stationary, one mobile) in a closed room. They recorded the Wi-Fi waves as they reflected off the cross to encode its image in 3-D within a hologram. [1] This technique could eventually reveal the interiors of closed structures even if the receivers are plac...