Science

Tungsten inert gas (TIG) welding is one type of arc welding. TIG welding is different than most arc-welding processes because the electrode is not consumed. TIG welding is considered to be more...

Electric currents are composed of moving charges. Application of voltage causes the charges to flow in an ordered fashion inside conductive material. Not all materials can carry electric current....

Potassium bromide is a salt for which many uses have been found -- although seasoning food is not one of them. It was even once used as a medicine to treat seizures in epileptics.

A very simple doorbell can be constructed by creating a circuit that is completed or broken by the press of a button. This is basically how all doorbells work. The oscillation of the circuit's...

Potassium nitrate, also called "niter" and "saltpeter," has a long and very interesting history. It is used in fertilizers and warfare, and to also quell the male libido.

Ambient, or outdoor, air directly affects the health of all living things that breathe it. In the United States, the Environmental Protection Agency (EPA) regulates the quality of ambient air,...

Several types of adhesive can be used to adhere paper to other sheets of paper or other materials, including wood, fabric, or chipboard. The process of choosing an adhesive includes determining...

Epoxy glue is a two-part adhesive, consisting of a resin and a hardener. The two parts are inert when stored separately, but when combined undergo a chemical reaction to create a thermoset...

The simple chemical formula for glucose is C₆H₁₂O₆. Glucose is a carbohydrate, specifically a monosaccharide. This is like saying peas are a vegetable, and more...

Silica gel packets are normally found in food or electronic packages you buy at the store. These packets collect the moisture that accumulates in these packages, thereby protecting the products in...

From a child connecting a battery, switch and light in a simple circuit to an adult building robots, the field of electronics provides an entertaining, hands on hobby, accessible to all ages. This...

Strontium is an alkaline earth metal. Like other alkaline earth metals, its compounds are more important than the pure element. According to the U. S. Geological Survey, the majority of strontium...

Oxygen is a natural element essential to all human life on Earth, as well as the lives of other air-breathing mammals. But there are some living things on Earth, including some organisms, that...

The names "auto" (or automotive) and "marine" primarily give marketing information for batteries rather than specifications for use. Both cars and a speed boats need a battery to start, but the...

Sodium hydroxide and sodium carbonate are derivatives of the alkali metal sodium, atomic number 11 on the Periodic Table of Elements. Both sodium hydroxide and sodium carbonate have commercial...

Motion sensing lights can work with a variety of different technologies. Which motion lights will work best for a particular residence will depend on the surroundings and what the lights are mean...

The first step in making an atomic clock work comes in the form of a measurement. The atomic resonance (between the nucleus of an atom and its electrons) must be determined. This is typically...

Bamboo wood has seen increased popularity as both a building material and a fabric, especially in the United States. As a building material, bamboo is soft yet also resistant against mold, and can...

Copepods are tiny marine and freshwater crustaceans. Many drift as plankton in the waters of the seas, but even more live on the ocean floor. They make up the largest single source of protein in...

The proteolytic enzymes, also known as proteases, are important chemical compounds that help maintain your body's metabolic processes such as digestion. The human body produces thousands of...

A transformer is used to change the voltage and current from an energy-supplying circuit to a receiving circuit. A magnetizable piece in between called a "core" is used to transmit the energy...

Sodium carbonate is an inorganic salt with the chemical formula Na2CO3. This compound is used in such industrial applications as glass production, as an electrolyte or as a component of...

A magnet creates electricity directly when an electric circuit cuts through its magnetic field lines---a phenomenon first noticed by Michael Faraday quite by accident during a demonstration during...

A fuse is an electrical component used in an electrical circuit for safety reasons. A fuse opens the circuit, or prevents the flow of electrical current, when conditions exist that will cause the...

Gas-discharge lighting was first discovered and commercialized in the early 1900s. When inventors ran high-voltage electric current through different gases, they discovered that some corroded the...

Both graduated cylinders and beakers are pieces of laboratory glassware that have a specific function. Graduated cylinders typically are more accurate at reading the volumes of the liquid inside....

Magnets can be combined to either reduce or increase their strength, depending on their orientation to each other. Combining two equal magnets will not double their strength, but it will come close.

Thermocouples are classified according to the maximum amount of temperatures they can measure, their function and their ruggedness. There are hundreds of types, but the most common ones are J, K,...

Plasma balls are globes that light up with streamers of plasma from the center radiating out to the edge of the glass globe. They can be found at almost any novelty shop as well as several...

Blood is continually circulating through the body. Every contraction of the heart muscle pushes blood into two essential and simultaneous circulatory loops. Through the systemic loop, blood brings...

Magnets have both a north and south pole; whichever pole of one magnet faces a pole of the other determines whether the magnets attract or not. Iron is a common material used as a magnet.

Diodes are semiconductor devices made from materials such as silicon. They allow current to flow in only one direction. Diodes can perform tasks such as emitting light, and can function as...

Almost everyone is familiar with the sound of a humming crystal goblet, the hum caused by someone repeatedly circling a moistened fingertip around the rim of the glass. Flicking the rim of the...

Man's attraction to things that fly may explain why weather balloons cause people to pause and observe when they see one even today. Most weather balloons are manufactured from flexible latex...

Fluorescent lights, unlike incandescent bulbs, need a regular supply of electrical current at a certain voltage in order to turn on. The way fluorescent lights create visible light is fairly...

Discovered by Irish chemist Robert Boyle, Boyle's Gas Law describes the relationship between pressure and volume of gas at a consistent temperature.

Thanks to modern technology, the motorcycle owner now has the option to buy a gel cell battery to no longer have the risk of spilled acid in an accident or during maintenance. That may not be the...

Chlorine dioxide, a synthetic chemical, plays essential roles in disinfection and decontamination of applications, such as maintaining the quality of drinking water and responding to bioterrorism.

Staphylococci bacteria are quite common, and are among the many bacteria that dwell on human skin. This family of bacteria has a few troublesome members, including the bacteria that cause staph...

Glycolic acid (α-hydroxyacetic acid) has the chemical structure HO-CH₂-COOH. Alpha-hydroxyacetic acid is used in skin care products. It reduces wrinkles and improves other skin...

Electromagnetic field theory is a physics subject with a long history. Prospective physics PhD's will have taken at least two years in the subject (if not more) to fully understand it. The most...

Wind turbines are used to capture wind and convert the kinetic energy (energy generated through motion) into mechanical or electrical power. Most turbines are used in wind farms to generate bulk...

Drip emitters are a common method of irrigation. The process requires piping with holes that allow water to escape into the soil in carefully measured amounts, seeping into the surrounding earth...

Finding a whole mammoth tusk or a hominid femur is rare. You will find far more fossils with a sifter; this can be a wooden frame with a strong mesh screen, or a smaller cylindrical or square hand...

Solar energy collectors have been in common use since the 1890s. A solar collector in a sunny spot has been used to heat water or make electricity. The limitation has always been times when the...

According to wordiq.com, human biology is the study of humans but has relations to medicine and primate biology.

A hybrid is the intentional combination of two or more different things, such as vehicles or genetically dissimilar plants or animals. The combination fulfills a particular goal and may offer...

Ever wonder how much rain has fallen on a stormy day? Well wonder no more! This article will teach you how you can measure your own rain!

Something is considered magnetic when it attracts or repels an item. Every magnet has two sides, known as poles. When similar poles are near each other, the magnets are repelled; when opposite...

Light is electromagnetic waves, and the frequency is one of the wave characteristics. While the period is the duration (in seconds) of one full wave, the frequency is the number of periods per...