When André Apolinario was a child, his parents had an argument over a bird’s nest. The swallows' nest was a fixture on the facade of their house in Gaia, Portugal, had to be removed by workers who ...

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The velocity of light in vacuum, c, is approximately 3 × 10 8 m s −1, fast enough to make 7.5 round-the-world trips in a single second, and to move a distance of 300 mm in 1 ns. This ultrahigh speed ...

Browning the sausages and onion at the beginning doesn’t take long and will add lots of extra flavour to this simple slow cooker casserole. Serve with some green veg if you like – broccoli, cabbage, ...

A simple and budget-friendly soup that freezes beautifully. Make it extra special by drizzling with a little cream and scattering chives or parsley on top. Serve with warm crusty bread and butter.

Slow light is an electromagnetic wave with a group velocity reduced by optical resonances in the medium through which it is travelling. These resonances can occur in atomic vapours, in photonic ...

The symptoms of oesophageal cancer can also be symptoms of other conditions, but it’s important to see your GP if you have any of these symptoms. You may feel pain or a burning sensation when you ...