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…

From our editors’ favourite skin-boosters to the needle-free options that guarantee a bouncier, brighter look, these are the best treatments for a radiant complexion

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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