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WFIU: A Moment of Science

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Language: English
Category: Variety / Unknown
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These vignettes remove some of the mystery from science, but not the wonder. A Moment of Science makes you think"Wow, that's neat!"and go tell somebody else about it.

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When It Smells Like Rain

What, exactly, makes the air smell like rain? Find out on this Moment of Science. ...

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[ Mon, 18 May 2009 12:23:56 -0400 ]

Crow Thievery

Native American stories and legends depict crows as witty and tricky. Modern behaviorists agree; crows are one of the more intelligent bird species. ...

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[ Mon, 18 May 2009 12:23:55 -0400 ]

When Over-eating Can Kill

It would only take a single oversized meal to kill or cause brain injury to a squid. ...

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[ Mon, 18 May 2009 12:23:39 -0400 ]

Hypnotic Dentistry

Some dentists believe that laughing gas makes patients more suggestible. In other words, going under the gas makes you more open to being hypnotized and made to believe that the treatment won't be painful, that you should relax, and so on. ...

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[ Tue, 12 May 2009 16:17:00 -0400 ]

Sea Slugs That Really Are What They Eat!

In some species, up to half the sugar produced by the captive chloroplasts is passed to the sea slug. ...

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[ Sat, 09 May 2009 16:26:46 -0400 ]

How Did Turtles Get Their Shells?

Since the time of the dinosaurs, turtles have looked much the same as they do today, complete with boney shells. But scientists know turtles didn't just appear on the Earth fully formed. ...

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[ Sat, 09 May 2009 16:26:38 -0400 ]

Mosquito Love Buzz

They also spread dangerous diseases such as dengue fever, which affects more than fifty million people every year. There's no vaccine for the fever and no preventive measure other than avoiding disease-carrying mosquitoes. ...

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[ Tue, 05 May 2009 01:29:46 -0400 ]

Diesel Fungus

It's not yet clear if the fungus can be cultivated on a large scale and used to produce actual fuel to power cars and planes and everything else that burns fuel. ...

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[ Fri, 01 May 2009 15:37:05 -0400 ]

A Spoon's Double Vision

These bouncing balls show you the path light would take when it reflects off the back of a real spoon (although light bounces into your eye, not out of it). ...

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[ Fri, 01 May 2009 14:28:28 -0400 ]

Overweight Stars

Astronomers have proposed two theories to explain the mysterious origin of blue stragglers. In one, blue stragglers result from the interaction of stars in a binary pair—that is, two stars orbiting their common center of mass. ...

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[ Thu, 30 Apr 2009 15:08:15 -0400 ]

Predicting Tornadoes

Since tornadoes are so destructive, meteorologists at the NOAA Storm Prediction Center are always looking for new ways to predict where and when they will occur. They have discovered that during El Ni?o years, more winter tornadoes occur in Florida and the Gulf states. ...

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[ Wed, 29 Apr 2009 14:54:14 -0400 ]

Molecular Toxin Removal

For example, the e coli toxin is shaped similarly to the cholera toxin. So there could be a molecular solution to treating cholera—-a disease that affects millions of people around the world. ...

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[ Fri, 24 Apr 2009 12:37:54 -0400 ]

Diesel Fungus

Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are some other potential alternative energy sources? ...

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[ Wed, 22 Apr 2009 15:16:09 -0400 ]

Hills in the Ocean

In the Western Pacific around New Guinea, there's a watery hill almost two hundred and fifty feet high. This isn't a hill on the ocean floor, it's a hill in the ocean's surface itself. The slope is very gradual because the hill is hundreds of miles across, but it's definitely there. ...

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[ Wed, 22 Apr 2009 14:00:57 -0400 ]

Ear-friendly Train Tunnels

The most famous tunnel is the thirty mile "Chunnel" between England and France. Thirty miles of air is a lot to push around, so engineers have come up with a clever solution. The Chunnel is actually two separate tunnels, connected by cross passages. ...

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[ Wed, 22 Apr 2009 14:00:55 -0400 ]

Popping Ears on a Train

When a train enters a tunnel, it compresses the air in front of it like a piston. Unlike outside air, air in a tunnel can't be simply pushed aside—the tunnel walls are in the way. ...

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[ Wed, 22 Apr 2009 14:00:54 -0400 ]

Bombed from Space

As a meteor passes into Earth's atmosphere it experiences tremendous air resistance on its front end, but very little on its back end. It is this imbalance of forces that rip it apart; for a large meteor, moving fast enough, hitting atmosphere can be just as destructive as hitting solid ground. ...

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[ Wed, 22 Apr 2009 14:00:53 -0400 ]

Barnacle Goose or Goose Barnacle?

Barnacle geese leave Europe in spring and fly north to breed on rocky Arctic islands. Newly hatched young and their parents spend the long summer days feeding on plants in the tundra. ...

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[ Wed, 22 Apr 2009 13:59:33 -0400 ]

Kin Recognition in Ground Squirrels

Scientists studying rodent species have found that odor is an important cue. Urine in rats and mice contains many chemical by-products produced by a set of genes know as the major histocompatibility complex. ...

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[ Wed, 08 Apr 2009 14:17:15 -0400 ]

Tiger Extinctions

There are thirty-eight cat species in the world, but none of them command the respect and awe of the tiger. In Asian myths it is the king of beasts as well as a demon, but in the real world this dangerous predator has become the hunted. ...

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[ Tue, 07 Apr 2009 13:48:13 -0400 ]

Ninety-eight Point-Magic Number or Medical Myth?

Hard exercise can raise the temperature as much as four or five degrees; so if you're running hard to make that doctor's appointment, don't be surprised if your temperature reads a little high. ...

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[ Mon, 06 Apr 2009 14:30:49 -0400 ]

You Gotta Have Heart

The heart is a muscle the size of your fist that's located in the center of the chest behind the breast-bone, or sternum. We generally say the heart is on the left side of the chest because about two-thirds of its mass is to the left of the sternum. ...

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[ Thu, 02 Apr 2009 13:45:54 -0400 ]

The Origin of Fingers and Toes

Before about 360 million years ago, no vertebrates had limbs. They all shared the same fish-like body shape. No limbs, just fins. But around that time something exciting happened. ...

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[ Wed, 01 Apr 2009 16:05:37 -0400 ]

Flies That Eat Spiders

When many spiders capture a fly, they don't eat it right away. Instead, they poison the fly and wrap it in silk. They leave this silk-wrapped package for later consumption, just the way you store food in your pantry instead of eating it all right there at the supermarket. ...

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[ Wed, 01 Apr 2009 16:05:35 -0400 ]

Keep Your Fat End Up

In fact, there is: the reason it's smarter to store your eggs with the fat end up is that the egg itself does not completely fill the interior of the shell. ...

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[ Wed, 01 Apr 2009 16:05:33 -0400 ]

The Cuckoo Catfish

The cuckoo catfish parasitizes African freshwater fish called cichlids. Some cichlids have quite elaborate parental care compared to other fish. As soon as they lay their eggs, the female cichlids scoop them up into their mouths and incubate them until they hatch. ...

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[ Wed, 01 Apr 2009 16:05:32 -0400 ]

Primate Grooming

Grooming reduces tension by lowering the heart rate and releasing endorphins that are calming. It is used to reinforce male-female mate bonds as well as same sex friendship bonds. For example, the length of time macaque and capuchin females groom each other depends on their social rank. ...

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[ Wed, 01 Apr 2009 16:05:30 -0400 ]

Becoming Endangered

And the answer lies in the Endangered Species Act of 1973. Five basic criteria are used to determine if a species is threatened or endangered: 1) if its habitat or range is being destroyed or significantly modified; ...

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[ Wed, 01 Apr 2009 16:05:29 -0400 ]

Natural Artificial Flowers

There's nothing more artificial than artificial flowers, right? But what about natural, artificial flowers? ...

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[ Thu, 12 Mar 2009 10:54:01 -0400 ]

A Machine That Can Read Your Mind

The electroencephalograph, or EEG, helps doctors to take at look at our brain activities. But don't worry - the machine cannot read your mind, yet! ...

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[ Wed, 11 Mar 2009 10:33:15 -0400 ]

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