I’m a Scientist is like school science lessons meet the X Factor! School students choose which scientist gets a prize of $1000 to communicate their work.
Scientists and students talk on this website. They both break down barriers, have fun and learn. But only the students get to vote.
This zone is the Boron Zone. It has a range of scientists studying all different topics. Who gets the prize? YOU decide!
I don’t know. I suggest you try wikipedia! http://en.wikipedia.org/wiki/Wheel
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I don’t know that one and don’t know that anyone does – given it is likely to have happened before “recorded” history.
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I don’t think that we really know the answer. It happened so long ago that it was before recorded history (as James said). This would also mean that we could never verify someone’s claim to have invented it.
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I don’t know – it probably evolved from the sled
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