The world’s most powerful lasers

Take down that signed Phil Collins poster and, hey presto, you’ve got a screen bigger than any TV. Now all you need is one of these projectors to point at it…

ALL THE BIGGEST STORIES FROM PLANET TECH

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THE LOWDOWN ON CO 2 LASERS

It’s one of the most basic concepts in physics, governing the behaviour of everything from subatomic particles to galaxies

The use of skin tools and gadgets can be a brilliant addition to your beauty routine. No longer reserved solely for professional beauty salons, these devices can really supercharge your at-home result