Science, Technology and Knowledge
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[1] The way you sound affects your mood
[2] A single, billion-year-old mutation helped multicellular animals evolve
[3] Chandra finds remarkable galactic ribbon unfurled
[4] Four elements earn permanent seats on the periodic table
[5] Scientists discover that our brain waves can be sent by electrical fields
[6] New development could lead to more effective light bulbs
[7] Advance in astronomy 'can help find other worlds'
[8] Nano-shells Deliver Molecules that Tell Bone to Repair Itself
[9] X-ray breakthrough 'opens door' to controlled nuclear fusion
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