Give Now

A Moment of Science

Archive for September 2003

September 27, 2003

 

Caterpillar vs. Plant

In the real world, some caterpillars and plants engage in a deadly struggle for survival. We’re talking full-scale battle, involving chemical weapons no less.

September 27, 2003

 

MRI

Although dissection remains a staple of medical training, over the years we have developed less invasive ways of peering inside the body. One of the most revolutionary and successful is MRI, or magnetic resonance imaging.

September 27, 2003

 

Flu Virus: The Unwelcome Guest

What we call “the flu bug” is really many different viruses. There are two main families: A and B, and both have many individual members, like Influenza A-Moscow, Influenza A-Panama and Influenza B-Sichuan.

September 27, 2003

 

Spots and Stripes

Why do some creatures have spots and stripes, while others don't?

September 27, 2003

 

American Pi

Over 4,000 years ago, the Babylonians were the first to approximate pi, and ever since, mathematicians have come up with ways of figuring it more accurately.

September 27, 2003

 

Forry, Wrong Number

In fact, there are several reasons, the major one being that telephones completely remove any visual cues from the process of communication. Not only do we read emotional content off the posture of a speaker’s body and face, but language comprehension is aided by a subtle form of lip reading.

September 27, 2003

 

How Tall Are You?

This means that the water pumping in and out of them also provides them with nutrients and enables them to eliminate waste products. If you’ve ever wished you were just a little bit taller, try measuring your height in the morning. It might make all the difference.

September 27, 2003

 

Thinking about Aging

As you may already know, heart disease is one of the leading causes of death in people who are older than sixty-five. What’s more, there’s a growing body of evidence that emotional stress can contribute to cardiovascular disease.

September 27, 2003

 

Don’t Forget Your Vitamins

You’re probably wondering how that can be when vitamin pills are synthetic, and boiled spinach is all natural. Well, when it comes to vitamins, synthetic doesn’t mean inferior. Even pills touted as all-natural contain some synthetics–otherwise they’d be the size of golf balls.

September 27, 2003

 

IQ

What do IQ tests really measure? Find out what psychologists think, on this Moment of Science.

September 27, 2003

 

A gain lightening bolt in the distance.

Struck by Lightning

How is it that sometimes people survive multiple lightening strikes, while others die instantly?

September 27, 2003

 

icecream

Ice Cream, a Foam?

Ice cream and soda... an amazing combination but how do you get rid of the foam?

September 27, 2003

 

Stray cat with turquoise eyes

Do Cats Eat Spiders?

What all goes into a cats diet? One thing is for sure, they like to eat. But how much can these felines handle?

September 27, 2003

 

Low Cholesterol Leads to Psychological Problems?

While low cholesterol is something we should all shoot for, having too low of a cholesterol level may cause other health related issues away from the heart.

September 27, 2003

 

The Search for the Ivory Billed Woodpecker

In 1999 an unconfirmed but seemingly authentic sighting of the ivory bill led to an expedition involving six bird experts who set out to confirm the report.

September 27, 2003

 

Albinism

Lack of pigment also makes eyes extremely sensitive to bright light. The pigment that determines whether your eyes are blue, brown, green, or gray normally helps to filter out stray light.

September 27, 2003

 

Black Boxes

Until recently, most black boxes worked like tape recorders, using magnetic tape to record voice and electronic data. Current manufacturers use solid state memory boards, like the kind used in personal computers.

September 27, 2003

 

The Muffin Maker’s Secret

Once flour is mixed with wet ingredients, strands of gluten protein in the flour stretch out and link up with other protein molecules.

September 27, 2003

 

Hairs in the Bathtub

If you find hairs in the bathtub after a shower or you find hairs stuck in your comb, don’t worry; you’re not necessarily going bald. And yet if you kept track of all the hairs you found over a period of a few years, it would seem that what’s left on top must be getting thinner.

September 27, 2003

 

Curry and Radiation Therapy

A substance in curry, already known to carry several health benefits, seems to protect skin during radiation therapy. The substance I’m speaking of is curcumin. It’s in turmeric, a curry ingredient. In fact, it’s what gives turmeric its yellow color.

September 27, 2003

 

Rejuvenating Your Skin

So what is actually happening when a moisturizer is rejuvenating your skin? First, moisturizers help your skin stay hydrated by either forming a barrier that prevents the water in your skin from evaporating, or by pulling water from the skin’s inner layers out to the skin’s surface.

September 27, 2003

 

Animal Manure Cleans Up Water Pollution

Humans are fouling the planet at an unprecedented rate. In this Moment of Science, we talk about a substance that we normally might consider a pollutant, but can also be used to clean up pollution. It may come as a surprise to you to learn that different kinds of animal manure may help treat some […]

September 27, 2003

 

Seeing in the Dark

Ever wonder how night vision goggles work? Seeing in the Dark, on today's Moment of Science.

September 27, 2003

 

Mirror, Mirror

Their descendants were even more vain, so in 16th century Venice mirror makers discovered the technique of backing a piece of glass with a reflecting metal composed of tin and mercury, producing a much clearer reflection.

September 27, 2003

 

Electrolysis

As in electrolysis, that is–the hair removal process involving mild doses of electrical current used to kill hair follicles.

September 27, 2003

 

Whole Grains

In this Moment of Science we discuss the importance of whole grains, as well as what they are in the first place.

September 27, 2003

 

Cooked Tomatoes are Better than Raw Ones?

It’s commonly said that cooked fruits and vegetables are not as good for you as raw ones. Is this statement true? Find out on today’s Moment of Science.

September 27, 2003

 

Bombproof Luggage Container

To be able to withstand a bomb blast, a luggage container must be made of pretty strong stuff. The magic ingredient in the best-known bombproof container is called Glare, which is short for “reinforced glass.”

September 27, 2003

 

To Immunize or Not to Immunize…

Vaccines consist of mild doses of disease-causing bacteria or virus that trigger the creation of antibodies that fight infection.

September 27, 2003

 

The Anatomy of a Flame

You can think of a flame as being like a kind of tent. Heat melts the candle’s waxy fuel, and turns it into a gas. This fuel gas floats away from the wick to fill the inside of the flame’s tent.

Stay Connected

What is RSS? RSS makes it possible to subscribe to a website's updates instead of visiting it by delivering new posts to your RSS reader automatically. Choose to receive some or all of the updates from A Moment of Science:

Support for Indiana Public Media Comes From

About A Moment of Science

Search A Moment of Science