Everyday science

Can weather forecasters predict rainbows? © Moron Eel

Everyday science

Can weather forecasters predict rainbows?

Finding the fun in science - Dara Ó Briain (Secret Science: The Amazing World Beyond Your Eyes)

Everyday science

Finding the fun in science – Dara Ó Briain

Is there a way to tie shoelaces to stop them coming undone? © Moron Eel

Everyday science

Is there a way to tie shoelaces to stop them coming undone?

© Frangipane et Al

Everyday science

Scientists paint a mini Mona Lisa using GM bacteria

10 excellent BBC podcasts to boost your brain on the bus © Getty Images

Everyday science

10 excellent BBC podcasts to boost your brain on the bus

Could a pH greater than 14 exist? © Getty Images

Everyday science

Could a pH greater than 14 exist?

Does it take more effort to swim in the deep end of a pool than the shallow end? © Getty Images

Everyday science

Does it take more effort to swim in the deep end of a pool than the shallow end?

The platinum-iridium cylinder (right) was the primary standard kilogram for all metric measurements in the U. S. Known as Kilogram No. 20, it was a copy of the International Prototype Kilogram, which was preserved at the International Bureau of Weights and Measures at Sevres, France. Kilogram No. 4 (left, under double bell jar), a duplicate of No. 20, was used as a secondary standard. Noth cylinders were 39 mm in diameter and 39 mm. high; they were made of 90 percent platinum and 10 percent iridium. Re-comparison of Kilogram No. 20 with the international standard in 1937 showed that the United States standard had changed by only one part in 50 million during approximately 50 years.

Everyday science

A fond farewell to the humble kilo

What causes bath bombs to fizz? © Shutterstock

Everyday science

What causes bath bombs to fizz?

Why are some materials magnetic? © Getty Images

Everyday science

Why are some materials magnetic?

Does science have a problem with women?

Everyday science

Why aren’t there more women in science?

There's something inscrutable and mysterious about liquids © Getty Images

Everyday science

There’s something inscrutable and mysterious about liquids

© Marshmallow Laser Feast

Everyday science

What’s on at the British Science Festival 2018

How was the length of a second first calculated? © Getty Images

Everyday science

How was the length of a second first calculated?