Photo competition: Wheels

By Kat Austen Arguably the most important invention in human history, wheels are the theme for this month’s New Scientist photo competition. Submit your entries here. We’ve come a long way since the Mesopotamians first fixed wooden discs to an axle. Now we have cogs, water wheels, flywheels, bike wheels, even nanowheels . So pervasive is the wheel, that walking has been likened to the transfer of weight from corner to corner of a square wheel. To celebrate how far the wheel has brought us, we want photos that show this fundamental technology in interesting, creative new ways. The best entry will win £50 of Amazon vouchers and will be announced in early May. You can keep track of the entries as they roll in by checking out the gallery of submissions. So,
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