How to Stop Your Eyeglasses From Fogging Up in Future?

Researchers at the University of Cambridge have found that the London underground is polluted with tiny magnetic particles. They can end up in the human bloodstream and even your brain. Tom shoots us with a clever way to stop your eyewear from fogging up in future. And later today we're going to look at the question of magnets and some examples of how magnets are making their mark in modern science.