At the ripe age of 13, Lawrence Rook is sitting pretty with £250,000 for inventing the Smart Bell, a doorbell that makes it appear as if you're at home, even if you're miles away.

Whenever someone rings the doorbell, it automatically dials the homeowner's cell phone. The device also produces a bit of white noise to make it seem as if the homeowner is actually inside of the house, deterring any burglars from breaking in.

In addition to warding off criminals, the Smart Bell comes in handy when someone's trying to reach you at home or if you have a delivery.

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