ScienceIQ.com

What Is pH?

Anyone who is the least bit familiar with vinegar, nausea, sodium bicarbonate, and ammonia-based cleaning solutions probably has a very good 'feel' for the different natures of acidic and basic solutions. But what the heck is 'pH' all about? To understand that one first has to know what makes a solution acidic or basic. The water molecule, H2O (or ...

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WhatIspH
Astronomy

It's Dusty Out There

There is no lower limit to the size of the solid particles that move around the Sun. Small asteroids grade downward into large meteoroids and then into smaller pebbles and so on down to the tiniest ... Continue reading

ItsDustyOutThere
Physics

The Sound of Turbulence

Do you ever watch the water tornado that forms in a draining bathtub? Woe unto any rubber ducky floating aimlessly in the vicinity; the water's force will pull it down into the tornado. The center of ... Continue reading

TheSoundofTurbulence
Chemistry

Why does popcorn pop?

Popcorn is the most amazing food! It all starts with a kernel only several millimeters in diameter which explodes into a 40-50 times bigger fluffy, tasty, white wonder. The kernel is made of three ... Continue reading

WhyDoesPopcornPop
Geology

Tornadoes

Tornadoes are perhaps one of the most terrifying manifestations of weather. Luckily for the rest of the world, they occur most frequently in the United States. A typical tornado season may see as many ... Continue reading

Tornadoes

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.