Give Now

A Moment of Science

Posts tagged light

October 25, 2012


lake vostok

Lake Vostok: The Latest Updates

Because of the tremendous pressure, over three times that of the normal atmosphere, the lake's water remains liquid at about twenty seven degrees.

September 26, 2012


lava lamp in shadow

The Physics Of A Lava Lamp

There are two ingredients inside a lava lamp: a watery liquid, and a waxy compound that collects at the bottom when the lamp is turned off.

September 18, 2012


whale tail in water

Do Whales Get Sunburnt?

Researchers have been studying the effects of UV rays on whales in the Gulf of California for over three years...

June 28, 2012


salt lake city pollution seen from park city

What Is Light Pollution?

The magnificent sight of the Milky Way, for example, can now only be seen in rural areas. Why do we shine light up into the sky in the first place?

May 2, 2012


stars moving around the pole

Why Do Stars Twinkle?

If you've ever glanced skyward, you've probably noticed the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light.

April 3, 2012


a journal with a latin palindrome and the words

Getting It Backwards

Why are letters reversed in a mirror? Try this experiment with pen and paper.

April 2, 2012


a baby looking in the mirror


You may notice in a mirror that words are backwards in the reflection, but it's actually more than words that are reversed; it's everything!

February 22, 2012


xerox photocopy machine

How Do Photocopying Machines Work?

Photocopying machines are fairly complicated devices, but the basic principal is pretty simple.

January 27, 2012


man underwater

The Blurry World Underwater

Why can't we landlubbers focus underwater without goggles?

January 26, 2012


blue sky with clouds

Why The Sky Is Not Blue

This is partly due to pollution, but even in the cleanest air the sky is lighter near the horizon due to the effect of earth's atmosphere on sunlight.

« Previous PageNext Page »

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