Search Results - Powder (substance)
| Type in a word or phrase to search, you can also type in Article ID's separated by commas: |
 |
|
|
A powder is a dry, bulk solid composed of a large number of very fine particles that may flow freely when shaken or tilted. Powders are a special sub-class of granular materials, although the terms powder and granular are sometimes used to distinguish separate classes of material. In particular, powders refer to those granular materials that have the finer grain sizes, and that therefore have a greater tendency to form clumps when flowing. Granulars refers to the coarser granular materials that do not tend to form clumps except when wet. Examples of powders would include ground coffee, powdered milk, cosmetic powders, gunpowder, powdered sugar, fine snow, household dust,salt, volcanic ash, the top layer of the lunar regolith, copy machine toner, and many pharmaceuticals. Because of their importance to industry, medicine and earth science, powders have been studied in great detail by chemical engineers, mechanical engineers, chemists, physicists, geologists, and researchers in other disciplines. Typically, a powder can be compacted or loosened into a vastly larger range of bulk densities than can a coarser granular material. When deposited by sprinkling, a powder may be very light and fluffy. When vibrated or compressed it may become very dense and even lose its ability to flow. The bulk density of coarse sand, on the other hand, does not vary over an appreciable range.
|
Showing 1 to 6 of 6 Articles matching 'Powder (substance)' in related articles. |
| Pages: 1 |
 |
|
|
|
1. Bodybuilding Supplements Review - Creatine
September 16, 2008
What is creatine? Creatine is a substance, made by the human body, which supplies energy to muscles. Carried in the bloodstream it originates in the kidneys, liver and pancreas. Once it reaches the muscles, it is converted into phosphocreatine (creatine phosphate). Regenerating the muscles' ultimate energy source, ATP (adenosine triphosphate), is where this high-powered metabolite does its work.
I've used creatine as follows - 5 grams (powder form) a day stirred into a glass of cold water. I did not preload. The effects I felt were my muscles felt fuller and more pumped, my endurance incr... (read more)
Author: Ignatius Gluck
|
|
|
|
|
2. Laser Toner Cartridges for Printers: Durability Gives Them Value
August 04, 2008
Toner cartridges are the most important parts of your printers. Since toner cartridges hold and control the ink, we cannot do without them. That makes taking care of laser toner cartridges is crucial. It’s very important to make your printer function efficiently.
A laser toner cartridge contains the powder-like substance that releases ink to create images on your paper. The toner cartridges are made of plastic and are installed in the cartridge holder. Whenever you buy a toner make sure you get an original toner cartridge.
Original equipment manufacturer (or OEM) laser toner cartridg... (read more)
Author: David Thomson
|
|
|
|
|
3. All About Ceramics
October 02, 2007
Ceramics come to be when different kinds of stone is ground into a fine powder, then mixed with water until what results is a paste like substance. This resulting paste is appropriately formed and fired in a and oven called a kiln at very high temperatures until the particles of stone melt and fuse together to create a strong glass like substance.
Bone China is a very glass like, smooth, non-porous pottery. It's made from bone ash, china stone and fine china clay or kaolin. Bone china is light weight and thin, and is fired at very high temperatures. You'll find that bone china patterns te... (read more)
Author: Clyde Lee Dennis
|
|
|
|
|
4. Nokia 7373: its a matter of taste.
February 01, 2007
Whenever the L'Amour collection is mentioned, the tastefully crafted tribal and ethnic swirls and weaves comes into mind. The Nokia 7373, adds further charm to the L'Amour motifs with its highly stylish swivel style opening system. The master craftsmanship in designing the Nokia 7373 is quite natural for its family. The phone is available in bronzed black and powder pink casing, the later predominantly aimed for the fairer sex.
The Nokia 7373 is as much about substance as it is about style. Beneath the sleek case lies a host of useful features including push to talk and a high grade organ... (read more)
Author: Grace Lewis
|
|
|
|
|
5. Propolis - Royal Jelly
January 13, 2007
PROPOLIS
Propolis (royal jelly) is a natural substance based on the resin of pines, collected by bees. Propolis is a nutrient said to stimulate function of a healthy immune system and protect against certain adverse health conditions. Propolis is one of nature’s most versatile substances with a wide range of accepted health benefits. It has a long history of medicinal use, and modern research has found that it does indeed inhibit the growth of bacteria, viruses, and other microorganisms, and may even help prevent cancer.
Propolis is a green to brownish glue-like material with an arom... (read more)
Author: Nutrovita1 Nutrovita1
|
|
|
|
|
6. Benefits of Supplementing With Creatine
March 19, 2006
What is creatine? Creatine is an amino acid (amino acids are the building blocks of protein) which is made in the body by the liver and kidneys, and is derived from the diet through meat and animal products. Creatine (creatine monohydrate) is a colorless, crystalline substance used in muscle tissue for the production of phosphocreatine, an important factor in the formation of adenosine triphosphate (ATP), the source of energy for muscle contraction and many other functions in the body.
What does creatine normally do in the body? In the body, creatine is changed into a molecule called ... (read more)
Author: chester ku-lea
|
|
|
|
|
