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When we look at a very bright object and then look away from it, why do we still see the object’s outline?

Written by Julia Cleghorn “Pass the salt, please.” We can direct other people’s behaviour by talking. And to talk, we have to think about what we want to say. But, what if you could skip the talking?

It’s three in the morning. Nature calls. You stagger from your bed, squinting in the darkness as you blindly weave your way past a bookshelf, around the glass cabinet, and down the corridor into the smallest room in the house. Not only do the scientists John O’Keefe, May-Britt Moser and Edvard Moser understand how your…

You’ve been up since early morning, had a long day at school and it’s late in the day. Your eyes are tired, it’s hard to concentrate and you’re trying not to yawn. It sounds like you’re ready to sleep.