ScienceIQ.com

Monkey See Monkey Do: Mirror Neurons May Lie At The Root Of Language

Self-awareness, the ability to infer the mental states of others, and language are considered uniquely human cognitive skills. But they didn't spring into the human brain out of nowhere. A recently-discovered assembly of neurons called mirror neurons may shed some light on the evolution of the brain structures underlying these skills. Mirror ...

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MonkeySeeMonkeyDo
Engineering

Man Versus Machine

Computers and automation are designed to help people. It sounds so simple. If you've ever tried to use a machine that looks easy but turns out to be complicated and confusing, however, you know that ... Continue reading

ManMachine
Geology

Our Most Abundant Fossil Fuel

Coal is our most abundant fossil fuel. The US has more coal than the rest of the world has oil. There is still enough coal underground in this country to provide energy for the next 200 to 300 years. ... Continue reading

OurMostAbundantFossilFuel
Medicine

Mother Nature's Own Brand of Bioterror

We've been hearing a lot about smallpox lately, as a possible bioterror attack. But Mother Nature has her own brand of bioterror. Smallpox has been with us for about ten thousand years, since the ... Continue reading

Bioterror
Biology

If You're Bringing Cows, Bring Your Own Decomposers

Living organisms create a lot of waste products. Every year they deposit millions of tons of dead plant and animal matter on almost every corner of the earth - and they make dung, lots of dung. Where ... Continue reading

CowsAndDecomposers

What Is Acetone?

WhatIsAcetoneAcetone is a manufactured chemical that is also found naturally in the environment. It is a colorless liquid with a distinct smell and taste. It evaporates easily, is flammable, and dissolves in water. It is also called dimethyl ketone, 2-propanone, and beta-ketopropane. Acetone is used to make plastic, fibers, drugs, and other chemicals. It is also used to dissolve other substances.

It occurs naturally in plants, trees, volcanic gases, forest fires, and as a product of the breakdown of body fat. It is present in vehicle exhaust, tobacco smoke, and landfill sites. Industrial processes contribute more acetone to the environment than natural processes.

If you are exposed to acetone, it goes into your blood which then carries it to all the organs in your body. If it is a small amount, the liver breaks it down to chemicals that are not harmful and uses these chemicals to make energy for normal body functions. Breathing moderate- to-high levels of acetone for short periods of time, however, can cause nose, throat, lung, and eye irritation; headaches; light-headedness; confusion; increased pulse rate; effects on blood; nausea; vomiting; unconsciousness and possibly coma; and shortening of the menstrual cycle in women. Swallowing very high levels of acetone can result in unconsciousness and damage to the skin in your mouth. Skin contact can result in irritation and damage to your skin. The smell and respiratory irritation or burning eyes that occur from moderate levels are excellent warning signs that can help you avoid breathing damaging levels of acetone.