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How Simple Ideas Lead to Scientific Discoveries110niveau 3Intermédiaire01:25
Are Head Transplants Possible?130niveau 3Intermédiaire00:42
Japanese Scientists Create Touchable Holograms110niveau 7Advanced01:45
Nanotechnology Can Help Deliver Affordable, Clean Water134niveau 6Advanced01:52
It's a Dog!~niveau 3Intermédiaire00:33