The art of timing
Why are the dates when we switch between summer and winter times (for example, swapping between Greenwich Mean Time and British Summer Time in the UK) placed so asymmetrically around the solstices?
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Spiralling backwards
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Ski Slope Catwalk
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91色情片
Gallery of terrifying gynaecological tools from past 200 years
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Environment
Old Scientist: Animal experiments in the bad old days
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Feedback: Crafty baboons channel MacGyver to escape research lab
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Whistle down the wind
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Running battle
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Legging It
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Superstring Theory
Would a very, very, very long piece of string reaching from Earth's surface deep into space remain suspended?
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Humans
Swirling wall of moving patterns represents our thoughts
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Feedback: World’s largest bird feeder to save peckish flocks
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Apocalypse then
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Brain Fade
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