Steve Caplin marvels at the $190,000 paid for an original, unopened iphone, at AI helping conquer the world record for juggling and defeating cold callers, at a laser device to rid Western Australia of feral cats, at a music system to keep cows grazing in the right place, at a system to reduce methane in cow dung – that appears utterly impractical, at a new way of charging electric cars that might mean they can enter the 24hr Le Mans race, at a crowd-funded portable hammock, at a device to counter car theft and at the possibility that humans could soon grow new teeth, much like sharks.

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