Saturday, April 03, 2010

30 Things You Should Never Compose or Recycle

Though recycling and composting are two of the most important green practices, there are some items that are bad for the environment. Follow these guidelines for best practices.

Remember the good ol' days — back when we only had one bin for trash? In retrospect, those days were actually more wasteful than good. We sent things to the landfill that might have nourished our yards, and buried them side-by-side with materials which should have been reclaimed and put back in the production chain.

Wednesday, March 17, 2010

10 Poisonus Foods We Love to Eat

Everyday we chow down on food produced from plants that carry deadly poisons. Most of the time we don’t need to be concerned with this as the mass production of fruit and vegetables ensures that we are usually safe, but from time to time people accidentally kill themselves by unwittingly eating the wrong part of a plant. In order to ensure that this never happens to you, I have put together a list of the most commonly seen poisons that we come in to contact with in our kitchens.

 


Tuesday, March 16, 2010

Flexible Silicon Solar Cells Use 99% Less Material

Researchers have found a way to make flexible silicon solar cells using only 1 percent of the material used in conventional solar cells.
The new material, reported on Sunday in Nature Materials, uses conventional silicon configured into micron-sized wires (a micron is one-millionth of a meter) instead of brittle wafers and encases them in a flexible polymer that can be rolled or bent.
Solar cells, which convert solar energy into electricity, are in high demand because of higher oil prices and concerns over climate change.

Backpack Hydroelectric Plant Gives You 500 Watts on the Move

A human-portable hydroelectric generator that weighs about 30 pounds and generates 500 watts of power may soon be a new option for off-grid power. Developed by Bourne Energy of Mailbu, California, the Backpack Power Plant can create clean, quiet power from any stream deeper than 4 feet.
The company showed off its more-rugged, militarized version of the Backpack Power Plant at the Cleantech Forum in San Francisco last week. Bourne Energy CEO Chris Catlin estimates the system will cost $3,000 after it goes into production.

Friday, February 13, 2009

Human body contains enough sulphur to kill all fleas on one dog

Each lymphocyte circulating in the lymph of the human blood travels through all blood and lymph vessels of the body from 10 to 20 times during a day. A lymphocyte covers the distance of 100 and more kilometers during its life cycle.

Each leg of a spider has a certain area made of thinnest hairs. Each of those hairs is made of tens of thousands of thinner bristles that interact with the surface on the molecular level with the help of Van der Waals forces. The power of these intermolecular forces is very weak, and they can hardly be noticed against the background of other forces. However, the adhesive power of hundreds of thousands of bristles is rather large. About 600,000 hairs allow a spider to sit on the ceiling and bear the weight which exceeds the weight of a spider 170 times.

The osmotic pressure inside bacteria may reach four kilograms per a square centimeter, which is fives times as much as the atmospheric pressure.

A snowflake contains about 10x18 water molecules.

A shark is capable of sensing one gram of blood dissolved in 600,000 liters of water at the distance of 500 meters.

Each square inch of the human body contains 32 million bacteria.

About 50,000 of your body cells will die and will be replaced with new cells while you are reading this sentence.

One square inch of human skin contains: 4 yards of nerve fibers, 1300 nerve cells, 100 sweat glands, 3 million cells, and 3 yards of blood vessels.

The average human body contains enough: sulphur to kill all fleas on an average dog; carbon to make 900 pencils; potassium to fire a toy cannon; Fat to make 7 bars of soap; phosphorus to make 2,200 matchheads; and enough water to fill a ten-gallon tank.

The tooth is the only part of the human body that does not regenerate.

Only one man would be enough to repopulate the whole plane in six months because a man’s testicles produce 10 million new sperm cells every day.

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