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Are elements named after people?

According to About.com, bohrium is named after the famous physicist and chemist, Niels Bohr. The scientists who discovered x-rays, Pierre and Marie Curie, were honored when the element curium was discovered. One of the most famous scientists throughout history, Albert Einstein, was the inspiration for the name einsteinium. Fermium was named after the scientist Enrico Fermi. Inventor of dynamite, Alfred Nobel, was honored when the element nobelium was discovered. Ernest Rutherford was the inspiration behind the naming of rutherfordium.

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How far is 200 meters on a track?

During a 200-meter race, runners should give an all-out effort for the duration of the race, as it's rather short and there's no need for a participants to pace himself. Midway through the race, the runner should start to focus on driving his arms down and back and pushing hard off the ground before sprinting through the finish line at the conclusion of the race.

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Where can you find information on the location of the moon in the night sky?

DailyMoonPosition.com displays graphic information for every location looked up including the moon's, altitude, degree location and brightness. The graphical compass differentiates between true north and magnetic compass north and explains how to interpret the degree location relative to true north.\nMoonGiant's star chart shows the moon's current position in the sky at the time that the user accesses the chart. Options are available to view several future times and their respective positions as well as to read more information about the moon's current phase, brightness and..

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What are the three parts of a seed?

The embryo grows inside the seed until it is able to break through the surface with its initial leaves and roots. It feeds off the carbohydrates, proteins and fats found in the tissues of the endosperm. It is safely enclosed in the seed coat, which keeps disease, insects and water away from the vulnerable young plant until it is ready for germination.

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What are the uses of carbon-14?

Carbon dating works by comparing the amount of carbon-14 in a sample to the amount of carbon-12. Because organisms stop taking in carbon-14 at death, the age of the material can be precisely determined by this ratio of carbon isotopes.\nHuman remains, fossils and organic materials from archaeological sites are all dated using carbon-14. Books, clothing and food remains are all archaeological artifacts that can be carbon dated. Carbon-based rocks, such as bitumen and tephra, can also be dated in this manner.\nCarbon dating is most effective on material that predates the 1940s; this is due to ab..

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What is pH paper used for?

The pH scale ranges from 0 to 14, where a measurement of 0-6 denotes acidity, 7 represents neutral, and 8-14 shows alkalinity. This measurement is obtained by comparing the color of the indicator paper to a chart after dropping a small amount of the solution onto the paper. Indicator paper should never be dipped into the substance being tested, as the dye from the paper can contaminate the solution.

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What mixture separation method is used to separate a mixture of palm oil and water?

Decanting is only possible for two liquids, such as palm oil and water, when they are immiscible, which means you cannot mix them. By means of gravity alone, water and palm oil separate, owing to the difference between their densities. You can do this with a simple decanter or with a test tube, but this method takes a long time. A centrifuge greatly hastens decanting by increasing the force of gravity.

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What does your favorite color say about you?

People who like green are often quite honest, trustworthy and caring individuals, but can also be overly concerned about what others think about them. If a person's favorite color is yellow, it often signals that they are an extremely happy, upbeat person, but also someone with a strong need to continue learning new things. Orange is a special case, as it is usually a combination of the red and yellow personality traits, often denoting an incredibly warm, happy and fun loving person.\nPeople who love purple can be quite unconventional in their attitudes and ways, and this color is also of..

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What kind of volcano is Mount Vesuvius?

The formation of Mount Vesuvius dates to the collapse of a previous stratovolcano, Somma. Other stratovolcanoes include Mount Rainier, Mount Fuji and Mount St. Helens. Stratovolcanoes often form on top of one another in domes and collapse. Mount Vesuvius is famous for its eruption and subsequent destruction of Pompeii in 79 A.D.

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Is sugar dissolving in water a chemical change?

When sugar dissolves in water, the sucrose molecules remain intact, making this is a physical change. However, when salt dissolves in water, the sodium ions separate from the chlorine ions, resulting in a chemical change. In both cases, evaporating the water from the solution returns the original substance. While the two processes look very similar, the changes occur as the solid dissolves is different, and the classification of the changes differs.

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