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David Freeman
David Freeman is the senior science editor of The Huffington Post in New York City and the host of Science Insider, a weekly radio program on an NPR station in Sharon, CT.

Entries by David Freeman

'A Beautiful Mind' Mathematician, John Nash, Wins Prestigious Prize

(9) Comments | Posted March 25, 2015 | 1:02 PM

John F. Nash Jr., the brilliant but troubled mathematician portrayed by Russell Crowe in the 2001 motion picture "A Beautiful Mind," has been awarded the prestigious Abel Prize in mathematics, along with another American mathematician, Louis Nirenberg.

The announcement was made...

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Human Waste May Be Flush With Gold, Silver, And Other Valuable Metals

(16) Comments | Posted March 25, 2015 | 10:49 AM

Is poop precious? Worth its weight in gold?

Not quite. But new research suggests that the organic materials (biosolids) generated by sewage-treatment plants may be an untapped source of gold, silver, platinum, copper, and other metals as well as rare elements like palladium and vanadium that are used to...

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Graphene Is The World's Most Amazing Material, And Now We Have A Simple Way To Make It

(72) Comments | Posted March 19, 2015 | 8:24 AM

Graphene just might be the world's most incredible material. A honeycomb-like sheet of pure carbon only one atom thick, it's one million times thinner than a human hair and yet 200 times stronger than steel. It's also an excellent conductor of heat and electricity and is stretchable, flexible,...

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Become A Craft Beer Expert In Three Minutes. Here's To Chemistry!

(8) Comments | Posted March 16, 2015 | 12:58 PM

You don't have to know any chemistry to enjoy beer, but it's nice to have a few facts on tap--especially if you find yourself in a game of one-upmanship with some hopped-up craft brew know-it-all.

And you can get all the basic facts about the molecular basis of beer...

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The Milky Way May Be More Enormous Than We Ever Imagined

(211) Comments | Posted March 12, 2015 | 12:25 PM

How big is the Milky Way? Way bigger than we thought, it seems.

Surprising new research suggests that our home galaxy is about 50 percent bigger than previously thought, spanning some 150,000 light-years across rather than the 100,000 light-years that has been the generally accepted number.

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모든 표면이, 절대 더러워지지 않게 만드는 페인트(동영상)

(0) Comments | Posted March 11, 2015 | 3:16 PM

머피의 법칙보다 화나는 자가운전자의 악몽이 있다. 바로 세차한 날엔 반드시 비가 오더라는 진리. 그런데 비가 오면 저절로 세차가 되는 차가 있다면 어떨까? 아니면, 커피나 와인을 쏟아도 더러워지지 않는 셔츠가 있다면?

페인트를 도포한 것 만으로 이 천은 모든 물을 튕겨낸다.

다국적 과학자들이 연구 개발한 이 ‘자가세탁’이...

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3,000 Skeletons To Be Dug Up From Old Burial Ground, And Here Are The Incredible Photos

(18) Comments | Posted March 10, 2015 | 3:17 PM

The big dig has begun at an old burial ground in London.

To make way for new construction near the city's Liverpool Street rail station, archaeologists have started excavating an estimated 3,000 historic skeletons now interred there on the site of the Bedlam burial ground.

(Scroll down...

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New Self-Cleaning Paint Could Put An End To Washing Your Stuff

(14) Comments | Posted March 10, 2015 | 10:38 AM

How great would it be to own a car that cleaned itself? Or clothing that resisted even tough stains like coffee and wine? You may soon find out.

A new paint developed by researchers overseas can be applied to clothes, paper, glass, and steel and--when combined with adhesives--retains its...

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'비어 고글' 효과는 모두에게 이롭다!

(0) Comments | Posted March 6, 2015 | 3:42 PM

술을 마시면 별로 매력적이지 않은 사람도 섹시하게 보인다는 이야기를 들어봤을 거다. 그동안 이 이야기를 미신이나 우스갯소리로 넘겼다면 주목하시길. 영국 과학자들이 비어 고글(Beer Goggles, 음주로 인해 상대방이 실제보다 더 매력적으로 보이는 상태) 현상은 실재함을 증명했다. 그리고 비어 고글은 술을 마시는 사람이든 그 상대방이든 어느 쪽에나 유용하다고 한다.

"술을 마신 사람이 상대방을...

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Amazing Slo-Mo Video Of Baby Praying Mantis Jumping Gives Scientists Big Surprise

(67) Comments | Posted March 6, 2015 | 7:39 AM

Praying mantises are pretty amazing jumpers--and you don't have to take that on faith. Just have a look at this amazing new video (above) of a baby mantis making a heroic Hail Mary hop and nailing a very tricky landing.

The video is a slowed-down look at a...

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물리학자들보다 힉스입자를 먼저 발견한 호머 심슨

(2) Comments | Posted March 4, 2015 | 2:29 PM

만화 '심슨 가족'의 호머 심슨은 아마 바보 연기를 하는 걸지도 모른다.

그렇지 않고서야 맨날 도넛만 먹는 멍청이로 묘사되는 그가 1998년 에피소드에서 칠판 앞에 서서 힉스입자 발견을 예시하는 매우 복잡한 방정식을 적은 게 가능할 수 있었을까.


2013년 출간된 책 '심슨가족에 숨겨진 수학의...

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Turns Out 'Beer Goggles' Work Both Ways

(33) Comments | Posted March 4, 2015 | 1:51 PM

No doubt you've heard that even unattractive people can start to look smokin' hot after you've downed a drink or three.

Science has shown that the beer goggle phenomenon is real--and now scientists in England have shown that those goggles work both ways.


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D'Oh! Homer Simpson Figured Out The Higgs Boson Years Before Physicists Found It

(70) Comments | Posted March 3, 2015 | 2:06 PM

Maybe Homer Simpson only acts dumb.

How else to explain a 1998 episode of The Simpsons in which a guy who usually comes across as a doughnut-eating doofus stands at a chalkboard bearing a complex equation that prefigures the discovery of the Higgs boson.

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This Awesome 3D View Of Deep Space May Be The Best Ever

(31) Comments | Posted March 2, 2015 | 8:42 AM

Along with Earthrise and the Pillars of Creation, the Hubble Deep Field (HDF) photo of 1995 is one of astronomy's most iconic photos.

But if you were wowed by the Hubble Deep Field--and the similar Hubble Deep Field South (HDFS) image...

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사랑니에서 뽑은 줄기세포로 실명 치료법 개발

(0) Comments | Posted March 2, 2015 | 3:12 AM

피츠버그 의과대학에서 전 세계적으로 수백만 명이 앓고 있는 각막형 실명(각막에 손상을 받아 발생한 실명)을 치료할 한 걸음 더 나아간 치료법을 발표했다.

지금까지 각막형 실명의 경우 유일한 치료법은 타인에게 각막을 이식 받는 것으로, 여러 가지 제약이 많다.

수석 연구원 사이드-피카드 박사가 발표한 바로는, 새로운 치료법은 사랑니에서 축출한 줄기세포가 각막으로...

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Head Transplants Are Coming Soon, At Least If This Doctor Gets His Way

(118) Comments | Posted February 27, 2015 | 12:25 PM

Things didn't go so great for Victor Frankenstein or his monster, but don't tell that to Sergio Canavero.

The Italian doctor believes that it's now possible to slice the head of off one person, stitch it to the decapitated body of another, and then reanimate the two-human mash-up. What's...

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Stem Cells From Wisdom Teeth Seen As Possible Fix For This Common Form Of Blindness

(10) Comments | Posted February 26, 2015 | 8:02 AM

Scientists have taken a key step toward the development of what could be a breakthrough treatment for corneal blindness, a condition that affects millions of people around the world.

The scientists showed that stem cells obtained from the dental pulp of extracted teeth can be turned into...

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(2) Comments | Posted February 25, 2015 | 1:02 AM


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NASA's New Mars Vine Shows A Chilly-Looking 'Blue Sunset' On The Red Planet

(11) Comments | Posted February 24, 2015 | 11:52 AM

If you're the kind of person who wonders what a sunset on Mars might look like, NASA has you covered. The space agency just released a new Vine (below) showing a dim sun sinking below a dark Martian horizon.

It's absolutely otherworldly, and not in a warm...

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Dogs Can Spot People Who Are Trying To Fool Them, Study Shows

(70) Comments | Posted February 23, 2015 | 12:29 PM

Dogs are certainly no dummies when it comes to understanding humans.

Canines can understand our voice commands and know what it means when we point (something even chimps have trouble with)--and recent research shows that they can even read our facial expressions.

Now a...

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