Earth & Environment

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Why was 2014 warm AND wet?

Health

blood-pressure

How do you measure blood pressure?

Biology

eye

How does your eye transmit data to your brain?

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Health

depresed

Is Blue Monday the most depressing day of the year?

At about 11 million km³ there is more water locked deep within the Earth’s crust than all the world’s rivers, swamps and lakes put together

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Physics

clock

When does a minute last 61 seconds?

Physics

thermometer

What is absolute zero?

Health

ebola

What is Ebola?

Space

xmas-lights

How does light output change over Christmas?

Physics

santa

How does Santa deliver all those presents in one night?

If you hold up a grain of sand, the patch of sky it covers contains 10,000 galaxies

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Health

hair-dye

Why do we dye our hair?