This ongoing system of hemoglobin proteins obtaining oxygen from the lungs and delivering it to the cells is based on ideal conditions, however. Sometimes the alpha or beta proteins produced by the genetic code are not perfectly formed, as in the case of sickle cell anemia. One of the components is shaped like a sickle, [...]

Some scales are adjusted simply with screws or levers which can be moved. Digital scales may have buttons which are used specifically in scale calibration. The owner’s manual for a scale usually provides specific information on calibration. Most people use several different weights during scale calibration to confirm that the scale is correct in multiple [...]

In manufacturing, silicone mastic is a type of adhesive or sealant used in moisture-prone applications. It offers similar qualities to caulk, but provides a higher level of water resistance and anti-fungal properties than most caulking products. Silicone mastic also serves as an effective tool for sealing or adhering objects to smooth, non-porous materials like glass [...]

Polyolefin is the largest class of organic thermoplastic polymers. They are non-polar, odorless, nonporous materials. As polyolefin materials are used in consumer goods, structural plastics, food packaging and industrial products, they are also called “commodity thermoplastics.” The name means “oil-like,” and refers to the oily or waxy texture of this class of plastic resins. This [...]

A resistor is a component of an electrical circuit that resists the flow of electrical current. A resistor has two terminals across which electricity must pass, and is designed to drop the voltage of the current as it flows from one terminal to the next. A resistor is primarily used to create and maintain a [...]

A resistor is a component of an electrical circuit that resists the flow of electrical current. A resistor has two terminals across which electricity must pass, and is designed to drop the voltage of the current as it flows from one terminal to the next. A resistor is primarily used to create and maintain a [...]

There are two major sources for white sapphires. Grey to light yellow natural stones may be treated to become clear, and some companies also grow their own stones, creating synthetic sapphires which are chemically identical to the real thing. A synthetic white sapphire tends to be less expensive, because consumers perceive lab-grown gems as inferior, [...]

The formal name for the camphor laurel is Cinnamonum camphora, and the large trees are found widely scattered in Asia, Japan, and India. When full grown, a camphor laurel can reach a height of 50-100 feet (15-30 meters), and will often spread out so that it is wider than it is tall. The evergreen trees [...]

We have Mother Nature to thank for the expression low hanging fruit. A fruit-bearing tree often contains some branches low enough for animals and humans to reach without much effort. The fruit contained on these lower branches may be not be as ripe or attractive as the fruit on higher limbs, but it is usually [...]

Keratin is an extremely strong protein which is a major component in skin, hair, nails, hooves, horns, and teeth. The amino acids which combine to form keratin have several unique properties, and depending on the levels of the various amino acids, keratin can be inflexible and hard, like hooves, or soft, as is the case [...]