More than 600,000 soldiers died during the American Civil War.
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There was one central reason the Civil War happened.
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To answer this question, we’ll need to look at some different parts of the brain and what they do.
Anglo-Saxon village re-enactment event in Wirksworth, Derbyshire, 2008.
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Hundreds of years ago, people spoke Old English – but it is very different to English today.
The best place to study is in a space with no distractions and plenty of light.
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A researcher who studies ways to help students become better readers and writers describes how to create a homework habit using a loop: cue, routine, reward.
The Jharia coal field in India has been on fire underground since 1916.
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Some rocks will burn, and others will melt, depending on how they were formed and what minerals they contain.
Reading becomes faster when you don’t have to say each word out loud.
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Called your ‘inner voice,’ it develops along with your reading skills.
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Unlike our toilets at home, plane toilets have to ‘suck’ the waste with a vacuum system. But don’t worry, it doesn’t get released into the air.
An aerial view of the Mauna Loa volcano, which erupted on the island of Hawaii in December 2022.
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As they shape the Earth, volcanoes inspire and terrify humans.
The higher your vantage point, the more likely you’ll see more of the rainbow’s circle.
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Each rainbow is personal – the rainbow you see isn’t exactly the same rainbow the next person sees. It’s all in the eye of the beholder.
‘Earthrise,’ a photo of the Earth taken by Apollo 8 astronaut Bill Anders, Dec. 4, 1968.
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The Earth isn’t permanent, but it was here for four billion years before humans arrived and should be here for several billion more.
Eventually weather, pests and disease will take their toll, but the story doesn’t end there.
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Even in death, a tree helps others live.
One distinction between a snail and a slug: The snail has a shell.
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These members of the mollusk family may be slow, small and slimy, but they are an indispensable part of the ecosystem.
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Sleep is one of the most important things we do.
Even playing with a fake gun comes with risks.
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Even fake guns can be dangerous if they are mistaken for real ones by the police or other armed adults.
Time gets a little strange as you approach the speed of light.
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Your experience of time is relative because it depends on motion – more specifically, your speed and acceleration.
Eight planets, including Earth, revolve around our Sun.
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It all starts with a cloud of gas and dust.
The internet is used for a lot more than just surfing the web.
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Almost everybody uses the internet just about every day. But do you really know what the internet is?
A trash compactor rolls over an active dump site at Pioneer Crossing Landfill in Birdsboro, Pa.
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Humans generate a lot of trash, but there are cheaper and safer ways to handle it than loading it on rockets.
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Before Swifties or the Beyhive, there were Byromaniacs – fans of the poet Lord Byron.
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Play is so important for kids, but what about adults? Why don’t you usually see mum or dad swinging on the monkey bars at a playground?