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What are uses of aluminum chloride?

As with other drugs and medicines, aluminum chloride works best when applied following certain application instructions. Most physicians recommend applying a thin layer of aluminum chloride to the scalp or under the armpits before going to sleep. At night, sweat glands reduce activity, letting aluminum work. This substance spreads over the affected skin, working into the sweat glands during the 6 to 8 hours overnight.People apply aluminum chloride to dry skin, avoiding application after shaving, on irritated skin and on wet skin. Take care to avoid the eye area when using aluminum chloride as ..

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Can mountains grow?

Volcanoes add to the mass of a mountain over time. Some of the largest mountains in the world are lava domes. Vents in the Earth's crust allow lava to flow outside the crust, building taller mountains. Vents in the ocean floor are responsible for building the mountains, such as those that form the Hawaiian Islands.\nLiveScience reports, "The mountains in Europe are growing taller and melting glaciers are partly responsible." Scientists studying these mountains find that with less glacial ice, the elastic earth is pushing the French Alps upward at a rate of 0.035 inch per year. In 50 years..

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How does an isolating transformer work?

Transformers themselves work based on magnetic currents. One coil, called the primary coil, is connected to a source of alternating current which produces a varying magnetic field in the iron containing core. This varying magnetic field then produces an alternating current in the second coil, which is connected to a separate circuit. The ratio of the number of turns in the first coil to the number of turns in the second coil, also called the turns ratio, determines the ratio of the voltage change that the transformer provides. Step-up transformers increase the voltage output by having more tur..

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What is the muscular layer of the heart called?

The myocardium is composed of cardiomyocytes, which are specialized cardiac muscle cells that control the contraction of the heart by generating and transferring electricity. These cardiac muscle cells require a dedicated continuous blood supply to maintain proper function. The coronary arteries serve this purpose by supplying the myocardium with blood.

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Why is air a good insulator?

Heat typically flows from warmer spaces to cooler spaces via radiation, conduction and convection. Because air molecules are so far apart, still air limits conduction and eliminates convection, which is the transfer of heat by the movement of a fluid. Fiberglass and cellulose are two other types of insulation that limit air flow and prevent heat transfer. Insulating a home saves money and reduces the amount of natural resources used for heating and cooling.

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What is diffusion in biology?

Simple diffusion occurs when small, nonpolar molecules transport through the selectively permeable cell membrane. Molecules that are able to pass through the membrane must be hydrophobic so that they can move through the hydrophobic region of the lipid bilayer region. Simple diffusion is a passive process that does not require energy or a membrane protein.\nChannel diffusion is also a type of passive transport that occurs with the help of membrane transport proteins. These proteins are embedded in the cell membrane and can open and close to allow molecules or compounds into or out of the cell...

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What materials are needed to make a model solar system?

A model with suspended planets is more animated. Styrofoam balls work well because they are light, come in many sizes and can be painted easily. One popular option is to take a wire coat hangar and shape it into a circle.\nUsing string, fashion a harness to suspend the mobile by tying equally measured pieces to the edge of the circle and attaching them to a hook that will hang from the ceiling. Using another piece of string, suspend the Sun from the hook so it sits in the middle of the circle.\nPaint the planets, and label them if needed, then hang them from the edge of the circle using differ..

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How would the earthquakes described in the book of Revelation rate on the Richter scale?

The Richter scale measures the magnitude of an earthquake by recording the motion of the ground with in an interval of .1 to .001 milliseconds. This measurement is described by whole and decimal numbers. Each whole number represents a tenfold increase in magnitude, which is roughly 31 times more energy than the previous number. For example, an earthquake registering at 2 or 3 describes minor effects, whereas those at 7 or 8 describe catastrophic effects.\nIn Revelation, the earthquake is not only described as bringing down a tenth of a city and killing thousands of people, it also produced bla..

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What structures move proteins from the ER to the Golgi apparatus?

Selected cargo proteins gravitate toward the transport vesicles, where they eventually become concentrated. Scientists believe these cargo proteins have an exit signal that alerts complementary receptor proteins to the presence of the COPII coat in the budding vesicle. This helps the complementary proteins move into the vesicle. Yet, some proteins without exit signals, which usually remain in the ER, also are packaged in budding vesicles to move into the Golgi apparatus. Approximately 200 membrane proteins, often of various types, are contained within the average 50 nanometer transport vesicle..

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What is the melting point of rubber tires?

The rubber used in creating tires is a mixture of many compounds, including carbon, latex, rosin and chalk, hardened by the addition of sulfur and other compounds. There is not a single melting point for these substances, so using the term "softening" applies more closely to the super heating of rubber tires. Because tires cannot simply be melted, the recycling process involves shredding the tires, then freezing them with liquid nitrogen. The frozen rubber pieces are then shattered into tiny particles to create a powder that can be combined with other materials to make such useful items as inj..

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