• Main Menu
  • Science

    • Potassium Benzoate

      Potassium Benzoate

      Potassium benzoate is the potassium salt of benzoic acid. Benzoic acids are weak acids that are used as food preservatives. Potassium benzoate is also commonly used for preserving food. It is primarily used to inhibit mold and bacteria growth. This allows the product that potassium benzoate preserves to last longer on the shelf, thereby increasing

    • Magnetorheological Fluid

      Magnetorheological Fluid

      Magnetorheological fluid or MR fluid is a special material used for building smart structures that can withstand earthquakes. The Magnetorheological fluid can change from liquid to solid and vice versa. It makes the buildings of which it is a component particularly flexible so they can adapt to external force that would have made other more

    • Backscatter X-Ray

      Backscatter X-Ray

      Backscatter X-ray machines were built specifically for airport security. Backscatter X-ray technology can strip off a person’s clothing in the captured image to show him or her practically naked. In the process, it will show any contraband such as ceramic knives, liquid explosives or drugs that the person was carrying but were previously undetectable by

    • Air Exchangers

      Air Exchangers

      An air exchanger is a device that transfers stale air from inside a home to outside, and fresh air from outside to the inside. Air exchangers are often large and built directly into a home’s foundation in order to provide maximum fresh air levels at all times. This is important because indoor air is often

    • What Are Photonic Crystals?

      What Are Photonic Crystals?

      Photonic crystals are those that manipulate how photons are absorbed or reflected off of them. They occur in nature and are made of dielectric nanostructures that allow certain wavelengths to pass through them while blocking other wavelengths. The visible light portion of the electromagnetic spectrum’s wavelengths is responsible for colors, therefore photonic crystals can spontaneously

    • Earth Cooling Tubes

      Earth Cooling Tubes

      Earth cooling tubes present an alternative for controlling temperature within residential and office buildings as well as greenhouses and other structures requiring temperature regulation. These tubes run underground and alter air’s cooling or heating temperature before it is allowed into a home or office. En route, the air releases its heat to the surrounding soil

    • How OnStar Works

      How OnStar Works

      OnStar was developed and deployed by General Motors for the purpose of providing fast and effective response in the event of vehicular accidents. OnStar has now been improved to provide more than the basic services. Now, it provides assistance with directions, car breakdown help as well as communications and leisure services. OnStar is a system

    • How Do Nuclear Power Plants Work?

      How Do Nuclear Power Plants Work?

      A nuclear power plant works in the same way that a coal power plant works. Heat is generated which causes water to turn into steam. This steam turns a turbine which causes a generator to spin which generates electricity. However, a nuclear power plant does not use coal. Instead, the fuel of choice is uranium

    • Electromagnets

      Electromagnets

      Electromagnets are magnets whose magnetic properties come from or are generated through electricity. A magnet is a material (this is usually metal), which has at least one pair of negative and positive poles. These opposite poles' attraction produces a magnetic field. This gives the magnet the ability to 'attract' metals such as iron or steel.

    • Magnetic Permeability

      Magnetic Permeability

      Magnetic Permeability is a term refers to the ability of a material to gain or maintain magnetism. When certain materials are placed in a magnetic field they become magnetized.  For example, when you take a piece of iron and rub it on a substance already magnetized or a magnet, it will become magnetized and have a

    322 queries in 0.575 seconds.