Scandinavia has been represented as having "racial purity" and of historically being a closed culture. Recent studies disprove both hypotheses.

Mar 29, 2012 – Frances Simmons

Exploding stars distribute heavy elements such as oxygen and carbon that are essential to life. The Chandrasekhar limit gives us a cosmic measuring stick.

Mar 29, 2012 – Jon Plotkin

Schopenhauer's The Fourfold Root of The Principle of Sufficient Reason may contain implications regarding the relationship between energy and mass.

Mar 28, 2012 – Alan Dale

View the planets on April evenings along with a meteor shower, and celebrate Astronomy Day!

Mar 28, 2012 – Kelly Whitt

Travelling five times faster than in air, sound is everything underwater. As oceans get noisier, marine life is suffering in ways we are yet to understand.

Mar 27, 2012 – Sarah Curran-Ragan

A curious substance located on the ocean floor could provide huge amounts of energy for the planet. Methane hydrate is abundant but potentially dangerous.

Mar 26, 2012 – Harvey Craft

The observations of Henry David Thoreau provide evidence of climate change due to alterations in phenology of common plants.

Mar 26, 2012 – Chris Dinesen Rogers

Excessive, poorly directed light causes adverse effects on humans and animals. Simple control measures can resolve the problem, thus saving energy and cost.

Mar 26, 2012 – Zeeshan Amin

Scientists are investigating sending civilians, astronauts and members of the military into hibernation in order to cure disorders and restore traumas.

Mar 25, 2012 – Dinah JL Novak

Wild cutting of forests is depriving living organisms from their natural habitats, contributing to global warming. We are obligated to plant new trees.

Mar 25, 2012 – Zeeshan Amin

Research has shown that the tremors and frightening noises in Clintonville, Wisconsin may be attributed to a series of mini earthquakes.

Mar 24, 2012 – Danielle McGinnis

Residents of Clintonville, Wisconsin have been fascinated and fearful of strange tremors coming from the earth beneath their city.

Mar 23, 2012 – Danielle McGinnis

Those "handed" molecules called enantiomers occupy an interesting place in both hard-science medicine and the mysterious, almost-alchemical world of scent.

Mar 23, 2012 – Amy Sillup

Murray Gell-Mann won the 1969 Nobel Prize in Physics for his work with quarks and the eightfold way to classify elementary particles.

Mar 22, 2012 – Paul A. Heckert

There is a way to guard against a catastrophic meltdown at a nuclear power plant if enough water is available.

Mar 16, 2012 – Jon Plotkin

Energy is in the news constantly. Clearly it is related to technology and how things work, but what is it? Energy is actually simple and plentiful.

Mar 16, 2012 – Harvey Craft

Scrutiny of existing practices and innovative solutions provide ways for the bottling industry to conserve water and reduce its environmental impact.

Mar 13, 2012 – Chris Dinesen Rogers

A function of maps is identifying locations and features. This is accomplished using grid referencing. Test yourself with several types of grid references

Mar 11, 2012 – James Gibson

A Walkway through Christchurch has allowed thousands to pay their final respects to Christchurch Cathedral before its upcoming demolition.

Mar 10, 2012 – Debbie Roome

"Natural gas" is used often by the media. The U.S. has a lot of natural gas, but what is it and can it help the energy problem? What are CNG and LPG?

Mar 10, 2012 – Harvey Craft