Earth Science

Carbon-14 dating is something that you hear about in the news all the time. Everything from mastodons to the Shroud of Turin has been dated using this technique! Learn about how carbon-14 dating works and why it is so accurate!

By Marshall Brain

How do they measure "sea level"? Is it the average of the tides? And is the sea level actually rising or not?

Let's say you have a lunch date to make - and it's on the other side of the planet. Wouldn't it be convenient to pop down a hole through Earth's innards? But what would really happen if you did?

By Nicholas Gerbis

For more than 40 years, scientists have tried to figure out what's causing large parts of Canada to be "missing" gravity. The force of gravity around Hudson Bay is lower than surrounding areas. Learn about two theories that may explain the phenomenon.

By Jacob Silverman

You probably know that the North Pole does not stay in the same spot. The North and South Poles can actually change positions. What causes this? Find out in this article.

By Tracy V. Wilson

Diamonds are beautiful and popular - but not everyone can afford these gems. While man-made versions are less expensive, most lack the luster and brilliance of the real thing, except moissanite. See how it compares!

By Melissa Russell-Ausley

Diamond engagement rings. Diamond anniversary bands. Diamond earrings and necklaces. And now, the right-hand diamond ring! The four Cs -- cut, clarity, carat and color. Find out what the fuss is all about.

By Kevin Bonsor

Rip currents are the number-one concern for beach lifeguards: About 80 percent of all beach rescues are related to rip currents. Learn what they are and what you should do if you get caught in one.

By Tom Harris

Countless movies and television shows depict quicksand as some kind of living creature that sucks its victims down into a bottomless pit, never to be heard from again. Well, you can't believe everything Hollywood tells you.

By Kevin Bonsor

Few things have done as much harm to humanity as fire, and few things have done as much good. Find out where fire comes from and see why it behaves the way it does. The answers might surprise you!

By Tom Harris

Earthquakes and volcanoes get all the press. But the landslides they trigger are often more devastating. What makes the ground suddenly rip downhill, taking trees and homes with it?

By Jennifer Horton & Mark Mancini

You might never notice the relentless movement of the oceans unless their waters went eerily still. What forces drive the oceans every second of the day?

By Jennifer Horton

It's not a trick; before you are a number of reptilian footprints in the rock. They're dinosaur tracks, preserved for thousands of years. But how did they possibly get there?

By Tracy V. Wilson

Some people believe that dinosaurs were relatives of today's birds. But, you might ask, if that's so, why didn't they have feathers? Funny you should ask.

By Tracy V. Wilson

The oceans' levels change daily across the globe. We know them as tidal changes. But what causes this constant shift in sea level and why is it more dramatic is some places than others?

By Mark Mancini

Geysers are beautiful and their eruptions are exciting, but these fragile natural wonders are not to be trifled with. The water shooting from the geyser -- and the eruptions themselves -- can cause serious damage.

By Jonathan Atteberry

Emperor Qin ordered 7,000 generals, cavalrymen and archers to protect his mausoleum. What's so odd about that? Well, they were made of terracotta.

By Cristen Conger

Four fundamental forces of nature are behind all that we do, from falling down to orbiting the sun. Learn about the four fundamental forces of nature.

By Craig Freudenrich, Ph.D. & Yara Simón

Sand dunes belch, moan and hum. They roll across the desert, seeking out new locales. You might even say they breed. It's no wonder people call these giant sand formations lifelike.

By Debra Ronca

Hollywood makes T. rex seem fast and agile, but some scientists think it was a scavenger, like a vulture. So which was it?

By Tracy V. Wilson

Rough times call for creative measures. The world is filled with oceans, and oceans are filled with wave energy that could potentially be transformed into power. Is wave energy a viable fossil fuel alternative?

By Jane McGrath

One evening, people heard their local lake rumbling. A day and a half later, 1,700 people were dead. What happened on that fateful night?

By Susan L. Nasr

Anyone who's been to the ocean has probably seen the foamy white stuff that clings to the sand after a wave breaks and recedes, but what the heck causes that bubbly foam and is it dangerous?

By Kristen Hall-Geisler

This ancient rock adorns King Tut's coffin and the Sistine Chapel. And at one time it was more precious than gold. What is it about this deep blue rock that has drawn us in for centuries?

By Carrie Whitney, Ph.D. & Austin Henderson

A lot of the times when people think of ancient artifacts, they picture Greek or Roman tools and relics. Things like oxidized copper trinkets, ivory statues, or maybe a bit of gold jewelry. But once you start thinking in archeological terms, a whole world of possibilities open up that pre date recorded history. Now we […] The post 12 Of The Oldest Objects Ever Discovered appeared first on Goliath.

By Wes Walcott