How To Calculate Runway Slope
When it comes to flying, it can be helpful for a pilot to know how to calculate the slope of the runway they're landing on. Here's how those numbers work.
Read MoreArchive for April 2025
Back to Archive IndexAlgebra (2)
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What Is The Difference Between A Direct And An Inverse Relationship?
Determining the relationship between variables is a pretty important part of math and science, so it helps to know what direct and inverse relationships are.
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Astronomy (12)
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The Largest Ocean In Our Solar System Isn't Made Of Water
When you think of oceans you probably think of water, but the most massive reservoir of liquid in the solar system is made from something else.
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Did Scientists Just Discover Life On Another Planet? What The JWST Actually Found (And What It Didn't)
Earth is teeming with life, but as of now, life has never been found anywhere else, but new observations hint at life on far-away K2-18 b.
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The Bizarre Planet Close To Our Solar System That Keeps Baffling Scientists
A mere 48 light-years from Earth in the constellation Ophiuchus is an exoplanet that has been defying scientists attempts to understand it.
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Neil deGrasse Tyson's Grim Prediction For The End Of The World
No one can say with any certainty when the end of the world will come, but it is possible to give a general description of what it may look like.
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Using The Bathroom On The International Space Station Is More Complicated Than You Think
Space flight is a tricky thing, especially when you consider how to provide all the necessities of life, particularly waste disposal.
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Here's What We Know About The Moon's Core
The moon is intimately familiar to most people simply because it's a constant in the night sky, but its interior is more of a mystery to us.
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The Stunning Glow Caught By The James Webb Space Telescope While Studying Neptune
Being the furthest planet from Earth, we don't know much about Neptune, but recent observations have revealed something glowing in its sky.
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The Truth About How Dangerous Geomagnetic Storms Really Are
Most people don't spend much time thinking about space weather, but a strong geomagnetic storm has the power to bring the world to a standstill.
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The Unassuming Rock That Was Actually A Priceless Scientific Find
Not all discoveries are the work of scientists and explorers. Sometimes it's just a guy out in the woods looking for a bit of gold.
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The Staggering Amount Of Space Debris That Hits Earth Daily
Despite its reputation, outer space is far from empty, and the region around our planet is particularly riddled with space debris.
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Your Chance To See The Star T Coronae Borealis Explode Is Now Or Never
There's about to be a new star in the sky, but this nova won't be here for long, and won't be coming back for a very long time.
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The Substance That Might Have Existed Before The Big Bang
Most people assume that the Big Bang was the beginning of all things, but current scientific models point to another cosmic origin.
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Biology (15)
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How Long Does It Take For Astronauts To Recover After Returning To Earth?
Outer space is an extreme place, that's why it's not surprising that astronauts need some time to recover after the return to Earth.
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What Happens To Your Body When You Hit Your Funny Bone?
Everyone at some point has had the misfortune of hitting their elbow just so and sending an electric shock up their arm, but what's really going on?
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Why Your Limbs Feel Like Static When They Fall Asleep
We've all experienced that feeling of pins and needles inside of one of our limbs from time to time, but what's really going on?
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What Really Happens When You Crack Your Knuckles
It's pretty well established that cracking your knuckles doesn't have any adverse health effects, but what's really happening in your joints?
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11 Strangest Organisms You Can Only See With A Microscope
While there are plenty of weird animals in nature, some of the strangest organisms can only be seen under a microscope. Here are a few of them.
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Your Largest Organ Isn't What You Think
When it comes to the biggest organ in the human body, most would think it's the lungs or the brain, but the actual answer may surprise you.
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What Ants Look Like Under A Microscope Is Terrifyingly Alien
Ants are so common that they hardly warrant a second thought, but if you take a closer look you'll find an absolutely terrifying insect.
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The Biggest Python In Florida Is Nothing Compared To The Biggest Anaconda
The Burmese python is probably the largest snake you'll find in the U.S., but the South American anaconda leaves no doubt which is the biggest.
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What Tapeworms Look Like Under A Microscope Puts Horror Movie Monsters To Shame
Tapeworms don't evoke warm thoughts in most people, but if you happen to take a close look at them, you'll realize they're pure nightmare fuel.
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The Simple Trick To Curing Your Brain Freeze In Seconds
Brain freeze is the bane of ice cream lovers everywhere, but even though we don't know exactly how it happens, we do know how to stop it.
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Sharkcano: The Active Underwater Volcano Home To Mutant Sharks
Just under the surface of the Pacific Ocean in the Solomon Islands is an active underwater volcano that's inexplicably teeming with sharks.
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10 Gross Adaptations Humans Evolved
The human body is an amazing thing, but there's no doubt that it's also capable of some pretty gross stuff. There's a reason for that, though.
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The Best Theories So Far For Why Dire Wolves Tragically Went Extinct
With scientists claiming to have resurrected the once-extinct dire wolf, one has to wonder, why did they disappear in the first place?
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The Largest Prehistoric Crocodile Ever Discovered Is Pure Nightmare Fuel
Crocodiles are some of the most fearsome apex predators on the planet, but this crocodilian ancestor puts our crocs to shame.
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The Bizarre Way Dolphins Seem To Get High
There's no doubt that dolphins are majestic creatures that have many surprising parallels with humanity, but one of those may be drug use.
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Chemistry (5)
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Here's What Chocolate Looks Like Under A Microscope
As delicious as chocolate is, it's not really much to look at, unless you happen to be looking at it through the eyes of an electron microscope.
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What Does WD-40 Stand For?
WD-40 is one of those things that's so ubiquitous that it tends to be overlooked, and most people probably don't even know what it stands for.
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We Might Be Able To Say Goodbye To Microplastics In Water With One Simple Trick
Microplastics are starting to become a major environmental problem, but there might be a simple solution to remove them from your drinking water.
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Using Coffee Grounds In Concrete Has An Unexpected Effect
The world drinks a lot of coffee, which comes at the cost of a lot of coffee waste, but we may have found a way to use it in concrete.
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5 Ways Recombinant DNA Technology Has Changed Lives
You're not likely to hear it brought up in casual conversation, but recombinant DNA has changed the world in a relatively short period of time.
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Geology (3)
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Why One Woman's Ordinary Rock Actually Turned Out To Be Worth Over A Million Dollars
Rocks come in all shapes and sizes, from boring gravel to crystalline quartz, but one woman's rock turned out to be a national treasure.
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The Dangerously Hot Feature You'd Never Expect To Be Present In Antarctica
Antarctica is a cold and unforgiving place, unsuited for all but the most prepared visitor, but it's also has a few more reasons to keep away.
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The Staggering Price Tag Of The World's Largest Gold Deposit
Gold is one of the most precious and sought after materials known to humanity, which makes the size of this discovery all the more astounding.
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Nature (15)
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You'll Never Look At Butterflies The Same After Seeing Their Wings Under A Microscope
Some insects are downright scary when you get a close look at them, but that's not the case when you look at butterfly wings under a microscope.
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10 Most Extreme Environments Where Scientists Were Shocked To Discover Life
Certain places on Earth seem far too extreme to support life, but that assumption is far from true. Rather, life apparently has a habit of finding a way.
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What Really Caused This Prehistoric Nightmare Fish To Go Extinct
The Dunkleosteus is one of the most formidable fish to have ever swam in the seas, but its disappearance is something of a mystery.
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Why Is The Ocean Salty But Lakes Aren't?
Water is so ubiquitous that most people probably take it for granted, but have you ever wondered why the vast majority of it is salty?
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You'll Only Find The Rarest Species Of Wolf In North Carolina
There are many endangered animals in the world, but few are under threat quite like this once-common wolf species of which only a remnant remains.
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What If Titanoboa Never Went Extinct?
The Titanoboa went extinct around 50 million years ago, but what might life be like now if this gargantuan beast still roamed the Amazon?
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Things People Get Wrong About Evolution
The Theory of Evolution has been around for over 150 years now, but there are probably some things about it that you don't understand.
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The Cookiecutter Shark Might Have A Cute Name, But The Reason For It Is Terrifying
Never judge a book by its cover nor a shark by its name, because what the cookiecutter shark is capable of is absolutely horrifying.
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10 Best Places To Look For Fossils In The United States
Fossil hunting is quite the fun hobby, and if you want to indulge that interest, there are some specific places that you might want to visit.
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The Pink Part Of Your Eye That's Actually Useless
Tucked away mostly unnoticed into the corner of your eye is small fold of membrane that serves practically no purpose whatsoever.
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You Should Always Destroy The Eggs Of One Animal Species. Here's Why
When you see eggs out in the wild, your first instinct is likely to preserve them, but if you see these eggs, you should destroy them right away.
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Why A Massive California Lake Keeps Disappearing For Decades At A Time
When it comes to geography, it feels like some natural features should be permanent, that's why it's odd this lake keeps disappearing.
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If You Thought Buffalo And Bison Were The Same Thing, You'd Be Dead Wrong
Despite being pushed to the brink of extinction, the American buffalo is fundamental to the fabric of America, but it's not actually a buffalo.
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7 Invasive Species That Are Wreaking Havoc In Oregon
Oregon is lush with an abundance of natural wildlife, but that wildlife is under threat by a number of invasive species running loose in the state.
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Why Kansas Has So Many Tornadoes
From sunflowers to The Wizard of Oz, Kansas is known for many things, but one thing that isn't commonly known is why it has so many tornadoes.
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Physics (4)
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Why Matter Can't Be Created Or Destroyed: The Law Of Conservation Of Mass Explained
No matter what you do, matter can neither be created nor destroyed. This property of the universe is called the law of conservation of mass.
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The Grand Problem That Stumped Einstein And Still Baffles Physicists Today
There's no question that Albert Einstein was one of the greatest minds of his or any generation, but there was one problem he couldn't solve.
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What's That Mesh On The Inside Of Your Microwave And What Does It Do?
If your kitchen is like 90% of other kitchens in the US, you probably have a microwave in it, but why does your microwave have a mesh screen?
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The Physics Law We Misread For Hundreds Of Years
Newton's laws of motion are the rock upon which classical physics have been built, but we may have been misinterpreting it for centuries.
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Science (18)
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If Your Memory Seems Worse, Take A Look At Your Smartphone Screentime
No one thought that too much time on their phone was good for them, but there's increasing evidence that it's actively harming your brain.
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Why Candles And Soap Could Bring An Unexpected Pest To Your Home
Of all the roommates you could be stuck with, one of the least desirable is a mouse, which may be enticed by your fancy soap or candles.
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Why So Many Fast Food Chains Have Red And Yellow Logos, According To Science
When it comes to fast food restaurant logos, the colors red and yellow show up again and again, but why are those particular colors so common?
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How Do Migrating Birds Know Where To Go?
Birds have been migrating for all of recorded history, but how they pull off their globetrotting travels without a map or GPS is still a mystery.
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The Ancient Weapons Discovered In An Unassuming Cave Close To The Dead Sea
Scientists have uncovered a cache of ancient weapons hidden deep inside a cave in the Judean Desert, opening a window to Roman Palestine.
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Can Astronauts Do Laundry In Space?
Despite being less than 100 miles from the surface of the Earth, space is a long way away, so how do astronauts get their laundry done?
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What If Antarctica Didn't Exist?
Despite being overlooked down at the South Pole, Antarctica actually plays a large role in our world and you would notice if it was gone.
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The Unusual Humming Noise In New Mexico That Still Baffles Scientists
In the desert town of Taos, New Mexico, some residents can hear a mysterious, low-frequency hum, and nobody knows what's causing it.
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The Ancient Weapons Found Near A Small, U.S. Desert Town
Hidden in the back of a cave in Texas, scientists found a treasure trove of artifacts that were used by ancient hunters thousands of years ago.
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Arizona Holds The Record For The Oldest Gun Ever Found In The United States
A rare find in the Arizona desert is the oldest firearm ever discovered in the United States, and it could be the oldest in the Americas.
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14 Ancient Places Rediscovered By Scientists
There's still a lot left to learn when it comes to ancient history, and scientists are still finding locations long since lost to time. Here are a few of them.
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You Can Actually Get Water Poisoning And It's Really Bad
Water is essential for life and it's important that you drink enough of it, but did you know that there's such a thing as too much water?
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Here's What Happens When A Compass Is Used In Outer Space
During the Age of Exploration, explorers relied on compasses to navigate the oceans and conquer the wilds, but they were never used in space.
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There's A Reason Alcohol Is Banned On The International Space Station But It's Not What You Think
Space is a place with lots of rules, but the reason that alcohol isn't allowed on the International Space Station isn't what you think it is.
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The Hygiene Activity That's Banned On The International Space Station
Keeping yourself clean on Earth is as simple as hopping in the shower, but things are a bit trickier in space where water doesn't fall.
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The Color So Dark That Anything It Covers Looks Two-Dimensional
Virtually everything you will ever encounter reflects a little bit of light, except for one material that seems to swallow light whole.
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What The T. Rex Really Sounded Like Is More Terrifying Than Jurassic Park Could Imagine
It's next to impossible to know what prehistoric animals sounded like, but by studying modern analogs, we may have a clue to T. rex's roar.
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We Could Be Totally Wrong About The Origins Of Humans
The prevailing narrative in human history is that humanity emerged from Africa, which is true to an extent, but there may be more to the story.
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Technology (3)
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What Does Lego Stand For?
Lego is one of the most recognizable toy brands in the world, but from an American perspective, the Danish-inspired name is a bit of a mystery.
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Here's When Mirrors Were Invented And How They Were Made Throughout History
In the modern day, mirrors are just about everywhere. But that wasn't always the case, and the mirror actually has a surprisingly long history.
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Who Invented The Folding Chair? The Answer Is More Complicated Than You Think
When you ask "Who invented the folding chair," Google will give you one answer, but history is often more complicated than a simple answer.
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