Where do cashews come from and why are they so expensive?

I quite like cashew nuts, they’re tasty even if they’re not drowned in large quantities of salt. However, they’re kind of expensive, at my local...

Eating a high protein diet is not as bad as smoking

In the latest bout of bad science reporting publications such as the Guardian, the Daily Telegraph, CNN and a bunch of others have published articles...

Maps are all lies – Representing a spherical earth on a flat world map

Is Greenland really bigger than Africa and Australia?  Take a deep breath.  The big map in your high school classroom, the atlas you’ve used to...

Why is yawning contagious?

There is no doubt that yawning is contagious. I mean, imagine someone with their mouth wide open, squinting eyes, taking a long breath in, then...

You can’t see the Great Wall of China from space

It’s an often quoted myth but it is not true at all that the Great Wall of China can be seen from space. From up...

Welcome to Pie Cubed

Pie Cubed is a website about the wonderful world of science. Click blog to access the articles in chronological order.
Latest articles:

The loneliest whale in the world

This is not a happy story. This is a sad story. This is the story about a lonely, lonely whale. Under the deep waters of the...

Why are chillies hot? And why do we like them so much?

There is an arms race going on. Farmers are competing to breed the hottest chillies ever, with terrifying names such as Trinidad Moruga Scorpion and...

Hummingbirds are hours away from starving to death

“If I don’t eat something I’m literally going to die,” says your friend. Of course, even if you’re really hungry, in the vast majority of...

Why does rain smell?

It’s one of those days. You’re inside, reading a good book while drops of rain gently fall, the perfect soundtrack to a lazy day. Or...

The great “natural” hoax — Is “natural” really better?

I hear it all the time. X is better than Y because it’s natural. It’s not full of chemicals. It’s herbal. It’s not artificial. You...

There is no ocean deep inside the earth

  “In what sounds like a chapter from Journey to the Center of the Earth, the chemical makeup of a tiny, extremely rare gemstone has made researchers...

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