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You’ve heard of plant-based protein, but what about food made from electricity?

If you get bored eating the same thing over and over, spare a thought for dogs. Many pet dogs eat the same thing every day, week after week. And a change in food can be abrupt – empty the old bag of dog food, and start with something brand new. But how long does it take a dog to adjust to a new diet?

Learn some fluffy and delicious chemistry by following this marshmallow recipe.

Written by Celia Berrell A one-kilometre single thread each silkworm spins as a cocoon bed. That protein-filled strand, untangled and long, makes fine-woven fabrics so light, yet strong. Surgery too has discovered silk’s riches. Incredibly thin for dissolvable stitches.

A clock that lasts forever, without batteries or winding up, sounds like something from science fiction. Right now, that’s the case. But a research team led by scientists in the USA thinks it might actually to be possible to make such a device.