Science

Refine Search

How are people affected by Kilauea?

Kilauea erupts regularly, generally with a large lava fountain and a release of gas and dust. The volcano is under constant surveillance by the USGS, and when the volcano shows signs of activity, people who live nearby are asked to evacuate their homes or are put on alert. The volcano also causes frequent earthquakes that have been known to damage property, cause car accidents and result in tsunamis.\nIn spite of its activity, Kilauea has a reputation for being a "friendly" volcano. There were only four recorded deaths in the 20th century related to Kilauea. In 1993, a photographer fell into t..

Continue Reading

What are ultrasonic waves?

Some ultrasound-emitting devices are used to silence barking dogs without hurting human hearing, because only dogs find the sounds intolerable. Similarly, some medical equipment for diagnosing health complications can produce ultrasonic sounds of 10 MHz and above. Such sounds do not harm human tissue.\nBats use high-frequency sounds to navigate and catch prey. The animals emit ultrasonic waves while moving at high speed and in pitch darkness. When the sounds are reflected back, bats can tell what exactly is in front of them.

Continue Reading

How are metabolic pathways regulated?

Changing the activity of another enzyme already in the cell is the fastest method of controlling an enzyme's activity, notes College of Saint Benedict and Saint John's University. Some strategies for accomplishing this include changing substrate availability and altering pH levels. Substrates are the reactants that bind to enzymes in certain amounts, measured in the unit Km. The cell is, thus, able to control the activity of a particular enzyme through modifying the amount of substrate available. When the amount of substrate available is significantly below the typical Km for that en..

Continue Reading

How do you convert a degree angle to inches?

For example, consider a right triangle, where one interior angle is 90 degrees, by definition, and the other interior angles measure 36.86 degrees and 53.13 degrees. If the length of the hypotenuse is 5 inches, then the other sides of the triangle must measure 3 inches and 4 inches. If the hypotenuse is 10 inches, then the legs must measure 6 inches and 8 inches. The ratios of the lengths to each other remain constant; this holds true regardless of the interior angular measurements or the triangle's size.\nIt is possible to calculate the length of a triangle's side in inches or other..

Continue Reading

What is the size of 10 gauge steel in inches?

For example, the thickness for 10 gauge galvanized steel is 0.1382 inches, and for stainless steel it is 0.1406 inches. When looking at the thicknesses of steel sheets, it is evident that increasing gauge numbers are associated with smaller sheet thicknesses.Standard 30 gauge steel has a thickness of 0.0120 inches. Standard steel gauge numbers can range from 3 to 38. These thickness gauges, which are referred to generally as the Manufacturers' Standard Gauge for sheet steel, are primarily used in the United States.

Continue Reading

Where can you find a chart showing pressure points for feet?

According to reflexology literature, pressure points on the soles of the feet and palms of the hands link to various organs and systems of the body. When the correct amount of pressure is applied to one of these points, it can ease pain and promote healing in a completely separate area of the body. Practitioners believe that various pressure points on the feet link to the intestines, liver and spine.

Continue Reading

Is there an element named after a cleaning compound?

Most elemental boron is derived by heating borax (Na2B4O7?10H2O) with carbon. This process produces boron that is pure enough for most applications. Once extracted, boron can be used in rockets and other pyrotechnics as an ignition source. It's also a good absorber of neutrons, which makes it useful in the fabrication of radiation shields and the control rods used in nuclear reactors.

Continue Reading

What is a dorsal position?

The dorsal recumbent position is primarily utilized in doctoral examination for a vaginal examination. The dorsal recumbent position is utilized in parallel with the application of obstetrical forceps and other procedures as a means to test for medical deficiencies. Often times it is utilized in an attempt to medically diagnose potential dangers to a person's health and to analyze potential treatment needs.

Continue Reading

What causes a cold front?

Since the cold air mass is heavier, it pushes underneath the warm air mass as the cold front moves. The warm air rises because it is lighter, and the presence of enough humidity in the air can create water vapor and precipitation. Cold fronts can cause thunderstorms, especially in the summer when there is more humidity in the air. The barometric pressure decreases and then increases, and the temperature can drop more than 15 degrees in one hour after the arrival of a cold front.\nOn a weather map, cold fronts are usually designated by a curved line with arrows pointing in the direction in whic..

Continue Reading

What part of the atom takes up most of its space?

The basic structure of any atom includes a nucleus made of protons and neutrons and a series of tiny electrons which orbit around it in a space called the electron cloud. The only exception to this structure is the hydrogen atom, which contains no neutrons.Atoms, like the particles they form, contain more empty space than mass since the positive charge of the protons and the negative charge of the electrons repel one another. This creates what scientists term an "electron cloud" surrounding the nucleus of each atom. In terms of volume, the electron cloud constitutes the majority of the "space"..

Continue Reading
Showing 91 to 100 of 10000 (1000 Pages)