iOS app Android app

David Freeman

Entries by David Freeman

One Of The Oddest Fossils Ever Found Is Finally Linked To Living Animals

(36) Comments | Posted August 18, 2014 | 3:49 PM

A fossil considered one of the oddest ever found may finally have its proper place in evolutionary history. New research conducted at the University of Cambridge in England links the weird legged worm known as Hallucigenia to modern velvet worms, wormlike animals that live...

Read Post

Scary Shark Attack Video Shows Just How Violent Great Whites Can Be

(87) Comments | Posted August 6, 2014 | 3:03 PM

What's it like to be attacked by a Great White shark? Now's your chance to find out--and you don't have to risk life and limb.

A scary new video from the Woods Hole Oceanographic Institution spotlights the moment when the giant fish closes its big...

Read Post

John Venn's Birthday Celebrated In Clever Google Doodle (VIDEO)

(1) Comments | Posted August 4, 2014 | 2:04 PM

Have you seen today's Google Doodle? It's a clever interactive animation to mark the 180th birthday of John Venn, the English logician and philosopher responsible for the Venn diagram.

As Venn wrote in his 1880 article "On the Diagrammatic and Mechanical Representation of...

Read Post

Neil deGrasse Tyson Says Media Misled Over Speed Of Light Story

(300) Comments | Posted August 1, 2014 | 3:06 PM

Were physicists all wrong about the speed of light? You might think so, given the stories posted recently about a new paper suggesting that light travels a bit more slowly than the 186,000-miles-a-second figure that's familiar to generations of science geeks.

The paper's author, University of...

Read Post

Why Do Dogs Sniff Each Other's Butts? It's More Complicated Than You Might Imagine

(76) Comments | Posted July 28, 2014 | 2:40 PM

Why do dogs sniff each other's butts? The answer to that question is a bit more complicated than you might imagine.

According to a new video from the American Chemical Society (above), it's all about one canine literally sniffing out important information about the other--its gender, emotional...

Read Post

These 'X-Rated' Math Terms Sound Dirty But Aren't Really

(32) Comments | Posted July 2, 2014 | 8:37 AM

For some people, math is a four-letter word. But even if you're comfortable talking equations, you might be a bit squeamish when making reference to math terms with names that sound X-rated.

Here are six math terms that sound dirty but aren't (see list below). The explanations...

Read Post

Huge Black Hole At Galaxy's Heart Has A Severe Case Of Gas

(143) Comments | Posted June 25, 2014 | 2:59 PM

Call it a severe case of gas--on a cosmic scale.

Data from multiple space observatories show that gas is spewing at very high speed from the supermassive black hole at the heart of a galaxy some 245 million light-years from Earth.

The discovery comes as a bit...

Read Post

Try This Simple Meditation Method To Be Happier, Healthier & More Caring (PODCAST)

(6) Comments | Posted June 24, 2014 | 8:36 AM

As someone who has spent decades at the forefront of brain research, Dr. Richard J. Davidson is well acquainted with the organ's amazing power to think and to reason.

But the University of Wisconsin psychologist also knows that this cognitive virtuosity comes with a big downside.


Read Post

This Famous Astronomer Was Looking For 'Zero' But Wound Up Proving The Big Bang Theory

(155) Comments | Posted June 16, 2014 | 8:51 AM

Today the Big Bang theory is accepted as scientific fact. That wasn't the case a half-century ago, when a young radio astronomer named Robert W. Wilson set out to do some simple measurements using a huge new horn-shaped antenna that had been erected on a hilltop...

Read Post

This Chart Shows Just How Crazy Crowded The Outer Solar System Really Is

(16) Comments | Posted June 10, 2014 | 12:00 PM

If you think Pluto is the only thing orbiting the sun beyond Neptune, this new chart will set you straight. It shows 132 of the 1,400 "trans-Neptunian objects" that are known to exist in a region that lies 4.5 billion to 7.5 billion kilometers from the sun.


Read Post


(7) Comments | Posted June 7, 2014 | 9:53 PM


Read Post

If You Think Humans Have Chimps Beat, This Study Will Have You Rethinking Your Theory

(163) Comments | Posted June 6, 2014 | 9:26 AM

There's a lot of bad stuff in the world for sure. But let's all take a minute to consider just how lucky we are that chimps don't look particularly good in business attire. If they did, we might be working for them.

Chimps are way stronger than...

Read Post

This Amazing Shot Of 10,000 Galaxies May Be The Hubble Telescope's Most Revealing Photo Ever

(472) Comments | Posted June 3, 2014 | 6:09 PM

NASA calls it the most colorful image ever captured by the Hubble Space Telescope--and the most comprehensive. It has to be one of the most spectacular.

But the image--the remarkable payoff of a new survey called the Ultraviolet Coverage of the Hubble Ultra Deep Field--is more...

Read Post

Quantum Teleportation Feat Brings Ultrafast Computer Networks Step Closer To Reality

(89) Comments | Posted May 29, 2014 | 6:15 PM

No one's getting beamed up anytime soon, but teleportation may have taken a big step closer to reality.

Researchers at Delft University of Technology in the Netherlands say they have succeeded in accurately transferring information from one quantum bit to another quantum bit located 3 meters away --...

Read Post

Faux Neil DeGrasse Tyson Is Hilarious (And Hungry) In 'Cosmos On Weed' Spoof (VIDEO)

(16) Comments | Posted May 23, 2014 | 5:02 PM

You don't need weed to contemplate the cosmos--just a good guide. But what would "Cosmos: A Spacetime Odyssey" be like if the series' beloved host, Neil deGrasse Tyson, got high before leading viewers out to the nearest galaxy?

It would be extremely funny, that's what. Just have a...

Read Post

Here's How Our Obsession With Killing Bacteria Could Actually Be Killing Us (PODCAST)

(7) Comments | Posted May 20, 2014 | 2:20 PM

Dr. Martin J. Blaser has one big theory about a lot of little things.

The little things are microorganisms--the estimated 100-plus trillion bacteria and other microbes that live on and in the average human body.

And Blaser's big theory? That our relationship with these microbial companions--known...

Read Post

Awesome NASA Animation Shows Neutron Stars Ripping Each Other Apart (VIDEO)

(7) Comments | Posted May 14, 2014 | 8:50 AM

Unless you're very, very unlucky, you're never going to bump up against a black hole. But a new animation from NASA gives a spectacular, close-up look at a black hole forming from the collision of two neutron stars.

These aren't bumper cars. NASA says these

Read Post

If You Think Only Kooks See Faces In A Piece Of Toast, This Study May Change Your Mind (PHOTOS)

(47) Comments | Posted May 13, 2014 | 11:16 AM

Ever seen the face of Jesus in a piece of toast? Some people have. And not just Jesus--and not just in toasted bread.

People perceive faces in all sorts of objects, from a shadowy face on Mars to President Kennedy in a rock...

Read Post

Physics Legend Freeman Dyson On The One Thing We Just Don't Get About Science (PODCAST)

(988) Comments | Posted May 6, 2014 | 1:01 PM

In a science career that has spanned more than 60 years, Freeman Dyson has worked alongside some of the greatest minds in theoretical physics, including Albert Einstein, Edward Teller, Hans Bethe, and Richard Feynman.

Of course, Dyson, 90, is himself a mathematical physicist of almost legendary status....

Read Post

This Exoplanet Video Will Take You On A Whirlwind Tour Of Almost 2,000 Alien Worlds

(3) Comments | Posted May 6, 2014 | 12:57 PM

How would you like to journey through space for a quick tour of all those alien worlds astronomers have discovered?

No spaceship, you say? No worries. An enterprising graduate student at the University of Leicester in England has created an amazing new exoplanet video that lets you...

Read Post