Blood has special traits unique to every person.
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Every person’s blood is identified by type. Why does this matter?
Could an alien world look like this?
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Somewhere out there, just maybe, an alien – probably stranger looking than in our wildest imagination – might be pondering this very question.
Teachers often assign older books.
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Stories like ‘Romeo and Juliet,’ ‘Alice’s Adventures in Wonderland’ and ‘Jane Eyre’ are still relevant today.
Two lenses might be better than one.
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There’s really no reason you can’t use binoculars to look into space – and in fact astronomers have been working on doing so for a long time.
Installing solar panels on a roof.
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Solar cells make electricity directly from sunlight, but how do they do it?
A satirical photograph from 1901, where men’s and women’s dress and jobs are switched.
Underwood & Underwood/Wikimedia Commons.
For most of the Victorian era, people thought it was normal for men and women to be treated differently, and judged by different standards.
Dr. Mona Hanna-Attisha, right, on Capitol Hill in Washington, in February . 2016.
AP Photo/Andrew Harnik
Whistleblowers may stop bad behavior and protect others from harm.
Keep those stinkers away!
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Sweaty feet and certain cheeses have something in common that makes them reek – can you guess what it is?
The Ringtail Unicornfish, which occurs in tropical marine waters of the Indo-Pacific. All fish sleep, even the weird-looking ones.
Bernard Spragg/Flickr
Fish may not have eyelids to close, but they sleep – and perhaps even dream.
You don’t actually need language to think.
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Language can express some of the results of our thinking, but it’s not the thinking itself.
The ripple effect.
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The simple experiment of throwing a rock into water actually reveals some fundamental rules of physics.
Optical illusions use colour, pictures and shapes that can make our brain and eyes confused.
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Sometimes our brain gets confused and misunderstands what the eyes tell it.
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A scientist explains how the brain works, for younger readers.
Stars come into existence because of a powerful force of nature called gravity.
ESA/Hubble & NASA, Acknowledgement: Judy Schmidt
Stars begin their life inside very large, fluffy clouds of space dust and gas called nebulae.
Swallowing a lot of gum can cause it to stick together or stick to food in your gut.
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Swallowing a lot of gum can cause it to stick together or stick to food in your gut.
Does music usually put you in a better mood? That might help you try a little bit harder and stick with challenging tasks.
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Research suggest it’s probably fine to listen to music while you’re studying - with some caveats.
You might be daydreaming, but your brain is hard at work.
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Your brain balances messages coming from lots of different places to help you see, imagine, remember and dream.
A pitcher tries to throw a ball past a batter.
AP Images/Eric Gay
In baseball, a pitcher can throw a ball that seems to curve away just as it crosses the plate. How do they do it? It’s all about aerodynamics.
Grant Elliott/Unsplash.
The salt in the sea has built up over billions of years – but it wouldn’t have got there without freshwater rivers and streams.
The remotely operated vehicle Deep Discoverer captures images of a newly discovered hydrothermal vent field in the western Pacific.
NOAA
In some places, the ocean is almost 7 miles deep. Scientists exploring the ocean floor have found strange sea creatures, bizarre geologic formations and records of Earth’s history.