This ultrasonic gripper could let robots hold things without touching them
Gadgets 

This ultrasonic gripper could let robots hold things without touching them

If robots are to help out in places like hospitals and phone repair shops, they’re going to need a light touch. And what’s lighter than not touching at all? Researchers have created a gripper that uses ultrasonics to suspend an object in midair, potentially making it suitable for the most delicate tasks. It’s done with an array of tiny speakers that emit sound at very carefully controlled frequencies and volumes. These produce a sort of standing pressure wave that can hold an object up or, if the pressure is coming…

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24 amusing photos of real-world vandalism that'll make you chortle
Gadgets 

24 amusing photos of real-world vandalism that'll make you chortle

Vandalism is a crime and one we don’t endorse, but sometimes it can be amusing, witty or just downright daft. Even the most prudish of people can enjoy a touch of real-world shenanigans every now and then.  We’ve collected a gallery of daft and hilarious photos of various acts of vandalism with a healthy dash of humour for you to enjoy. You are offline This artist has recreated Google Chrome’s offline dinosaur game in the real world. The artwork comes with some sage advice too – “don’t panic, look around…

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