Science

Refine Search

What are the chemical properties of lithium?

Lithium is a lustrous metal that is soft enough to be cut by a knife and that tarnishes when exposed to the air. It is commonly used in medicine, as well as in the manufacturing of lithium hydride batteries. Lithium has a melting point of 356.90 degrees Fahrenheit and a boiling point of 2,426 degrees Fahrenheit. At standard temperature and pressure conditions, lithium has a density of about 0.53 grams per cubic centimeter. It has an electron configuration of [He] 2s1.

Continue Reading

Where does argon come from?

Argon is a type of noble gas that is an inert gaseous element with unreactive capabilities. Sir William Ramsay and Lord Rayleigh are responsible for the discovery of argon and this is a result of isolating argon from a type of air-sourced nitrogen. It gets its name due to its unreactive capabilities and "argon" translates to "the inactive one." It has many uses in many different products, including fluorescent light bulbs, medical lasers and radio vacuum tubes.

Continue Reading

What is a northeast monsoon?

A monsoon is a shift in wind patterns that causes different kinds of weather. In India, severe thunderstorms, hail, tornadoes and torrential rain can come with the arrival of a monsoon. A cyclone can also accompany a monsoon. Dry winters and wet summers make a good monsoon climate, and a quarter of the globe experiences this climate. Monsoons can affect and be affected by the climate of the globe. If a monsoon is heavier than normal, it can cause global teleconnections. Global teleconnections are chain reactions that cause stronger lows and more rain to form toward the east.

Continue Reading

Where is the supratentorial area of the brain?

One of the primary structures of the supratentorial region, the cerebrum, is divided into two hemispheres. These hemispheres are split by fissures into four separate lobes, which are responsible for different tasks in the brain. The frontal lobe is responsible for logic and planning, and a small subdivision of the frontal lobe, called Brocha's area, is responsible for language development. The frontal lobe is also contains an individual's intelligence and personality.\nThe parietal lobes interpret physical sensations, such as temperature and pressure, and also allow humans to perform..

Continue Reading

Where can you find a chart of pressure points on the human body?

Acupressure is an ancient art that uses pressure applied to various points on the body. Each point corresponds to a different area. Acupressure is different from acupuncture, which uses needles instead of pressure.\nAcupressure helps relieve pain, improve circulation and balance body energy. Acupressure charts help identify the areas to focus on when treating specific areas of the body. For example, chest points help relieve fatigue, breathing problems, anxiety and other issues.

Continue Reading

What is the function of the fimbriae?

According to Healthline, the fimbriae sit at the end of the Fallopian tubes and connect to the ovary. The fimbriae are very small in size and have finger-like appendages. The fimbriae dictate the movement of the ovum, and it takes approximately three to five days before the egg is moved completely to the uterus. It is at this point that the egg can be fertilized by sperm. If fertilization does not take place, the egg is removed from the body through menstruation.

Continue Reading

What is the independent variable for the Drops on a Penny lab experiment?

For the Drops on a Penny lab experiment, testers use an eyedropper to drop single drops of water onto a penny, and they count how many drops can fit on the surface before spilling over. The purpose of the experiment is to test the cohesion and surface tension properties of the penny and solution. Testers can hypothesize as to which solution works best on the surface of the penny and then repeat the experiment with different solutions to view the results.

Continue Reading

What are the uses of coal?

As of 2014, 42 percent of the world's electricity comes from coal, making the electric industry the largest consumer of coal worldwide. Coal-fired furnaces heat water into steam, which turns electric turbines to create electrical current. In some cases, processors can also convert thermal coal into a liquid fuel as an alternative to natural gas or other petroleum products. Metallurgical coal is most widely used by the steel industry, with 70 percent of the world's steel output dependent on coal. In addition, coal finds its way into many different products, such as the carbon fiber th..

Continue Reading

What is sodium hydrochloride?

Sodium hydrochloride may be used in some industries for bleaching, odor removal and water disinfection. It is a yellowish solution that can be produced by dissolving salt in softened water or by adding chlorine gas to caustic soda.People who are exposed to sodium hydrochloride for long periods of time may suffer from a sore throat, stomach pains and vomiting. However, in correct concentrations, such as when it is used in a swimming pool, sodium hypochlorite is generally harmless.

Continue Reading

What is an example of a contralateral reflex?

The reflex occurs on the opposite side of the body from where the stimulus is applied. The reflex is produced as the branches from the afferent nerve fibers cross from the simulated side to the contralateral side of the spinal cord. They then synapse with the interneurons and either inhibit or exhibit alpha motor neurons. The neurons travel to the muscles of the contralateral limb. The flexors of the contralateral leg in the above example would relax, and the extensors would stiffen to support the weight of the whole body. The signals also travel to the contralateral hip muscles and abdomen in..

Continue Reading
Showing 1091 to 1100 of 10000 (1000 Pages)