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The Physics Factbook™ is an encyclopedia of scientific essays written by high school students that can be used by anybody. It is an exercise in library research methods in which students are sent out in search of a measurement with the intent of having them find more than just a number with a unit. It is an ongoing project with no foreseeable end date or limits.

"A British caving team believe they have discovered the world's largest cave passage in the heart of the Vietnamese jungle. The rocky passage is 150metres long and measures a towering 200metres in height - seven times as high as the vaulted ceiling of York Cathedral."

"Exposure to BPA before birth could affect girls' behavior at age three, according to the latest study on potential health effects of the widespread chemical. Preschool-aged girls whose mothers had relatively high urine levels of bisphenol-A during pregnancy scored worse but still within a normal range on behavior measures including anxiety and hyperactivity than other young girls."

"A new study on cellphone safety has found that carrying a phone in a shirt or pants pocket exceeds radiation exposure guidelines spelled out by the the Federal Communications Commission (FCC), and that children absorb twice as much cellphone radiation as adults. The study published in the journal Electromagnetic Biology and Medicine criticizes the way phone manufacturers measure levels of microwave radiation, and calls for the industry standard to be scrapped."

A new species of giant rat has been discovered deep in the jungle of Papua New Guinea.