What Richard Feynman didn't understand about women

The legendary scientist had a frankly horrible perspective on interacting with women—and it's by his own account. Read the rest

The science of why some people don't like cilantro

It's okay, cilantro lovers. The haters aren't wrong. They're just disabled. Read the rest

How indirect allergen exposure works

I'd always sort of thought that people with severe peanut allergies could have a reaction from being too close to peanuts, even without touching them. Turns out, that's not true. Usually. Read the rest

What makes a public park successful?

As planners create parks to go with a new Vikings stadium, the Minneapolis Park History blog looks at why some parks became community hubs and others earned bad reputations. (Thanks, Andrew!) Read the rest

Lots of us have had the urge to jump to our doom

A recent study found that the urge to jump off tall things is pretty common, even among people who are not suicidal. Read the rest

Once-hyped planet does not exist

In 2010, I told you about Gliese 581g, a potentially habitable exoplanet that astronomers thought they had spotted orbiting a star more than 20 light years from Earth.

Turns out, they are most likely wrong about that.

The existence of Gliese 581g has been shaky for a while — other scientists were questioning the first team's data just a few weeks after the initial announcement.

Now, writes Matthew Francis at The Daily Beast, the opposing scientists have put together a damning case against Gliese 581g's existence, enough that it's now reasonable to say that what we thought was an exoplanet was never anything more than a blip in the data.

A new study, published in the journal Science, showed that what seemed to be the sign of a planet was more likely to be from the star’s “weather”—the same sort of magnetic fluctuations that cause prominences and sunspots on the Sun. Not only that, but a second planet in the same system, Gliese 581d, probably doesn’t exist either, for the same reasons.

Your first response may be to say, “Stupid scientists! How could they get this so wrong?!” (You aren’t a very nice person, you know.) But that’s a mistake. The story of Gliese 581g highlights how hard exoplanet-hunting is, and how science at its best is self-correcting. All results have to be taken as tentative at first; if they survive under scrutiny or (ideally) replication by other researchers, we can trust them. It’s often messy or slow and can lead to ego clashes, but it’s how science works.

Read the rest

"Mysterious blob" is guts

A freaky looking blob that washed up on a Cape Cod beach is probably the viscera of a large marine animal. Read the rest

Kitty sees you

This fantastic footage of a curious Pallas's Cat was taken last year in a zoo in England (I love the shot at :21.)

There's a lot of misinformation flitting about the Internet in relation to this video, so you should really read the great write up on it by Matthew Cobb at the Why Evolution is True blog. He tracked down the fact that the video comes from a zoo and not (as has been widely reported) from camera traps in Nepal.

There are, however, images of Pallas's Cats in Nepal that were taken by a camera trap. Here's one of a Pallas's Cat, apparently attempting to use the bathroom in peace and quiet only to be rudely interrupted by a camera flash.

Video Link Read the rest

How World War I brought women into science

Fascinating history at Nature, about the way war began the still-unfinished process of integrating female minds into the scientific world. Read the rest

Making "petrified lightning" at home

Fulgurites are glass tubes formed when lightning strikes a desert or beach. Artificial fulgurites are made by running a high-voltage arc through a tub of sand.

I started searching for fulgurites this morning after being reminded of a hoax image that went around last year. It purported to show a massive fulgurite on a beach but was, instead, a stick covered in wet sand. But, as Kyle Hill wrote at the But Not Simpler blog last July, the hoax doesn't make real fulgurite any less awesome.

Incredibly, lightning can and does in fact create something amazing when it hits sand, but the conditions have to be perfect. When it hits a sandy beach high in silica or quartz and the temperature goes beyond 1800 degrees Celsius, the lighting can fuse the sand into silica glass. The blast of a billion Joules radiates through the ground making fulgurite—hollow, glass-lined tubes with a sandy outside. Petrified lightning.

When the lightning perfectly strikes the sand, it branches through it like the root system of a tree to make this beautiful anomaly. But that simple fact is key to getting to the root of the viral photo: The lightning creates a tube of glass through the ground, not above it. You can actually see the impact hole when it occurs in rock.

Video Link Read the rest

A history of Down Syndrome

From their inclusion in 16th-century paintings to their roles in famous families (including, probably, Darwin's), people with Down Syndrome are part of history.

At the Down Wit Dat blog, there's a 8-part (with more on the way) feature that provides some much-needed inclusion to people who are usually just a footnote to somebody else's history. Naturally, the series delves into ideas like eugenics and the institutionalization of differently abled Americans. But, even there, the story is centered on people with Down Syndrome and, as such, it offers a perspective and information that you likely haven't heard before. Great stuff.

Here's an excerpt about the short life of Charles Waring Darwin, the youngest child of the Charles Darwin you know. Based off historical records and the surviving photograph that you can see here, historians suspect that he had Down Syndrome.

Henrietta, one of his daughters, had this to say about Charles Waring in her book "Emma Darwin, A century of family letters...":

"The poor little baby was born without its full share of intelligence. Both my father and mother were infinitely tender towards him..."

Charles Darwin himself had this to say about his youngest child:

“He was small for his age and backward in walking and talking.... He was of a remarkable sweet, placid and joyful disposition, but had not high spirits.... He often made strange grimaces and shivered, when excited.... He would lie for a long time placidly on my lap looking with a steady and pleased expression at my face... Read the rest

What happens to forests when invasive insects win?

A 2011 photograph from Wisconsin shows what damage the larvae of the emerald ash borer are doing to ash trees in the United States. Credit John Ehlke/The West Bend Daily News

Emerald Ash Borer will likely kill 99% of the ash trees in North America. We can't stop it. So what happens next?

At The New York Times, you can read a story I wrote about why we will lose the battle against the Asian beetle Emerald Ash Borer and what that loss is teaching scientists about the complicated ecological networks that make up forests.

A 2009 study in the journal Biological Invasions listed 43 native insect species that rely on ash trees for food or breeding. Those insects are the food supply for birds, including woodpeckers.

“You end up with a different ecosystem that different species prefer and where the old ones can’t do as well,” said Kathleen Knight, a research ecologist with the Forest Service. Read the rest

Agnes Clerke: Victorian astronomer

Besides bucking tradition to study the stars, proper English lady Agnes Clerke was also a historian of the mafia. Read the rest

Great profile of a black, female World War II vet

Millie Dunn Veasey traveled to England through U-Boat-infested waters, saw war casualties in bombed-out French towns, went to college on the GI Bill, and sat next to Martin Luther King, Jr. at the March on Washington.

Her life story, some of it centered around her time in England and France working with the first all-female, all-black military unit sent to a war zone, is absolutely fascinating. Kudos to Josh Shaffer of the Raleigh News & Observer for profiling Veasey.

Back in Raleigh, Veasey saw an advertisement looking for female black recruits. Women with work experience were especially prized. At the time, she didn’t think of her role as freeing a man for the front lines. She thought, if a white woman could join up, why shouldn’t I?

Her family didn’t share her optimism. She was small, weighed less than 100 pounds, and she’d been sickly as a child. Her mother doubted she could handle the rigorous training. Her brother, already in the Army, doubted she could pass the test.

But Veasey took a bus to Fort Bragg, where she aced the exam, physical and written; she was one of three selected. Before long, the girl from Bloodworth Street who’d never been out of Raleigh found herself standing at reveille in the rain at Fort Des Moines in Iowa, wearing Army-issued galoshes that didn’t fit her narrow AAA-sized feet.

“I didn’t know how to tie my tie,” she confessed.

Here's a video of Veasey's unit, the 6888th postal battalion, taking part in a parade and drills. Read the rest

When your heart really beats like a hammer

Summer Ash survived open-heart surgery. Now she's dealing with the side-effects, including the strange sensation of an overly loud, strong heartbeat.

At first I was told that a “hyper-dynamic heartbeat” is a normal side-effect of open heart surgery and it usually calms down within six to nine months. Nine months came and went, no change. Then I was told that the scar tissue beneath my sternum must be thick enough that it’s fully filling the gap between my heart sac and my sternum, therefore transmitting the vibrations of each heartbeat directly to my rib cage which then acts like an amplifier. In theory, scar tissue thins over time and the sensation should dissipate. Having been a mechanical engineer, this makes sense to me. However, no one can say on what time scale this will happen.

It started off as a novelty, a bit of a party trick. I used to make everyone feel how strong it was. When I would hug people, they’d feel their body rock to the beat. And when I went out to eat, if I was at a small, less sturdy, table for two, I could lean my chest on the edge of the table and make the water glasses do that thing from Jurassic Park.

I highly recommend reading the series of posts she's writing about living with the after-effects of life-saving surgery. Although she's happy to be alive, Ash provides a perspective on serious surgical interventions that we don't often hear. Read the rest

Foremost narwhal expert also practicing dentist

Who wouldn't want to get their teeth cleaned by Martin Nweeia, a dentist/expert in one of the most ridiculous and Internet-beloved animals on the planet.

The two interests make sense together, writes Erin Biba at Tested, because the narwhal's spiraling "tusk" is actually a tooth. But it's not really that tooth that made Nweeia interested in the animal to begin with. Instead, it's the fact that a narwhal lacks other teeth.

This is a whale that eats pretty big fish and when you look inside its mouth it has no teeth. If i’m eating large fish, that might require chewing and biting, why give up all those teeth and put all of the energy into growing one giant tusk?

But there are also lots of the little things that don’t make sense. When you think of teeth, on both sides of a mammal's bite you’d expect them to be the same size and have a mirror image morphology or shape. In narwhals it couldn’t be more opposite. It doesn’t even fall within any parameter of any creature ever known on the planet.

If you look at the narwhal’s, its tusk comes out of the left side. When you see photos of them, they angle their body so the tusk appears straight in alignment with the horizontal axis. But if you look at them still, clearly the tusk is coming from the left side. The tooth on the right side often stays embedded in the skull.

You’ve got a tooth on one side that’s between a foot and a foot and a half and on the other side it’s 9 feet.

Read the rest

Why mountain climbers lose weight

It's more than just a good workout. High-altitude climbers (paradoxically) don't eat as much as they do at sea level. Here's why. Read the rest

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