ScienceIQ.com

The Strange Spin of Uranus

Directional terms like north and south make sense here on Earth. The north and south axis of the Earth is relatively perpendicular to the plane of the Earth's orbit around the sun. Actually, Earth's axis of rotation is 23.5 degrees from the vertical. The variance from the vertical is what causes our seasons. ...

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UranusSpin
Astronomy

The Sun, The Mighty Engine Of Our Solar System

Our Sun has inspired mythology in almost all cultures, including ancient Egyptians, Aztecs, Native Americans, and Chinese. We now know that the Sun is a huge, bright sphere of mostly ionized gas, ... Continue reading

SunSolarSystem
Engineering

Dress Sizes The Scientific Way

In pre-industrial America, most clothing was crafted at home or by professional tailors or dressmakers from individual measurements taken of each customer. In the early Twentieth Century, the growing ... Continue reading

DressSizesTheScientificWay
Medicine

The Placebo Effect

To test new drugs, researchers usually divide their subjects into two groups. One group receives the experimental drug. The other receives a placebo or 'sugar pill' that should have no effect on the ... Continue reading

PlaceboEffect
Geology

Diamonds Improved by Irradiation?

Besides hardness and texture, probably the most fascinating aspect of gems is their color. There are so many different and wonderful clear and foggy gems with colors that span almost the complete ... Continue reading

IrradiationDiamond

Who Moved My Moldy Cheese?

MoldyCheeseThere are few things less appetizing than a fuzzy, moldy piece of cheese. However, one of the most popular cheeses, Blue Cheese and its varieties, the French Roquefort, the English Stilton and the Italian Gorgonzola, derives its taste, flavor and blue color from the Penicillium mold. This cheese traces it origin to the early part of the first century when sheep or cow’s milk was allowed to ripen in limestone caves. The caves were a perfect breeding ground for Penicillium mold which easily took up residence in the cheese.

Molds belong to the same family as mushrooms and yeast. Because they share some common characteristics with plants they were once considered to be part of the plant family. But the most important thing that plants do, molds cannot do - make their own food through the process of photosynthesis. Instead, they produce special enzymes that break down organic material and absorb it. In the case of blue cheese, they are literally eating away the cheese. What we enjoy in a blue cheese is the result of the Penicillium mold doing its work. Molds reproduce through spores that float in the air. It was these early floating spores that found that cheese and the rest is culinary history. But don't expect that moldy cheese in your refrigerator to taste as elegant as a bit of Roquefort spread on your French baguette, most molds taste, well, rather moldy.