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    • Hybrid Cars

      Hybrid Cars

      Most hybrid cars use a combination of gasoline and electric engines. There are also types of hybrid cars that use a combination of diesel and electric engines. Gasoline & Electric -Powered Cars ‘Regular’ gasoline-powered cars derive their propulsion power from combustion of gasoline. The combustion of gas produces the energy needed to turn the transmission

    • What is Hindsight Bias?

      What is Hindsight Bias?

      Hindsight bias is when people exaggerate their confidence in an event that occurred based on predictions that were made prior to the event’s occurrence. Hindsight bias is just one type of bias that the brain uses to store and recall information. This is because people tend to focus on an event that occurred rather than

    • Silicone Grease

      Silicone Grease

      Silicone grease is made when a thickener is combined with silicone oil in order to create a waterproof grease. The most common thickener used to make this grease is amorphousfumed silica with polydimethylsiloxane as the silicone oil. The resulting mixture is a translucent, viscous, white paste that has lubrication properties depending on the exact formula

    • How a Nuclear Heart Scan Works

      How a Nuclear Heart Scan Works

      A nuclear heart scan is an excellent method to evaluate the health of your heart. Nuclear heart scans are safe and extremely effective for diagnosing specific kinds of heart conditions. The process of having a nuclear scan is relatively simple and in most cases is painless. During a nuclear heart scan, a radioactive tracer (which

    • How Fast Does the Earth Spin?

      How Fast Does the Earth Spin?

      One of the basic questions regarding the earth is, how fast does it spin? The earth is constantly spinning; it spins around its axis. An axis in this case is an imaginary line running through the center of the earth from the North Pole to the South Pole. To calculate how fast the earth spins,

    • What is Phosphorescence?

      What is Phosphorescence?

      Phosphorescence is an effect in which some chemicals re-emit light that they absorb. It is similar to fluorescence, except that the chemical reactions within phosphorescent materials happen less often, thus they take longer to emit light. Phosphorescent materials can be recharged by being exposed to light and may store light for several hours before it

    • How a Convection Oven Works

      How a Convection Oven Works

      In a regular oven, a thin layer of air insulates food from the heat beneath it. This layer of air causes food to be cooked unevenly and slows cooking time down considerably. A convection oven is a type of oven that solves this problem by circulating the air within the chamber by using either one

    • 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

    • How a Nuclear Bomb Works

      How a Nuclear Bomb Works

      A nuclear bomb uses a nuclear reaction to generate energy (heat and radiated particles). The energy released is millions or in some cases billions of time stronger than TNT; the whole process is carried out in a very short time, providing huge destructive power. There are two types of nuclear reactions, fission and fusion. During

    • Automatic Number Plate Recognition

      Automatic Number Plate Recognition

      Automatic number plate recognition is a system designed to automatically recognize and store license plate number data on vehicles passing through a certain point. This is one of the mass surveillance systems that utilize optical character recognition programs and hardware capable of reading 1 plate/second off vehicles running at a maximum of 160 km/hr. Some

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