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New ways to fight crime, soak up some sun, and mail a letter

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Watch out for a new 300-pound crime fighting robot coming to town. The company behind the K5 Autonomous Data Machine claims it could be the next generation of night watchmen. Think of warehouses or parking garages; sensors could sweep license plate numbers, check air quality, and use thermal imaging. Not sure how much it will cost, but humans would play a role as well, controlling the video and microphone if necessary.

Most people are careful these days when it comes to UV-rays from the sun, but some may still need sunlight for vitamin D. This wrist band called the Sun Friend is designed to help you get that vitamin D and reduce the chance of skin cancer. The NASA-inspired UV-sensors have LED that light up as you soak int the UV. When you've reached a safe limit, the lights flash. It's customizable and you can get one for about $45.

If you think the mail that comes to your door as boring, well, think again. In Australia, they're launching video stamps. So, their stamps are QR-codes. Sensors can record a personalized message for whomever is getting the mail. When you get the package, you can scan the stamp with your phone and it becomes even more personal, and it's free!

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