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Can oxygen cylinders explode?

Other main cause of oxygen-related explosions and fires are leaking equipment, oxygen enrichment and the careless and incorrect operation of oxygen equipment. According to the U.S. National Library of Medicine, prevention measures are encompassed by the safe handle, transport and storage of all oxygen and related devices. Oxygen cylinders should be kept in a well-ventilated area, and a clamp or chain should be used to prevent cylinders from falling over.

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What is the "permittivity of free space"?

In centimeter-gram-second systems, the permittivity of free space is 1. Permittivity relates the electric field in a material to the electric displacement in the same material. It determines if the insulating material will distort an electronic field. Permittivity is represented by the Greek letter epsilon. Permittivity of free space is represented by epsilon with a subscript 0.

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How can you make your own clock?

Clock kits tend to be relatively inexpensive, but provide a great deal of flexibility when it comes to mounting and decoration. There are relatively few tools needed to build a clock using a movement kit; in most cases, the only tool needed is a drill to make a hole in the object that acts as the clock's face. Depending on the material, it is sometimes necessary to build a housing for the movement mechanism. For example, making a clock out of an old book may require building a frame for easier mounting and stability.\nAlternately, hollow materials such as containers can be transformed int..

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How does a watershed function?

Colloquially, the term "watershed" is often applied to an area immediately surrounding a river, stream or gully that a watershed drains into or to the outlet itself. In many cities, watersheds are associated with greenways and parks, which are often developed along areas where a watershed drains into a stream or river flowing through the city.\nWatershed protection or management refers to protecting the area that drains into an outlet, such as a river or stream, from pollutants to protect the outlet as well as its associated habitats. Some common sources of watershed pollutants include chemica..

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What are some components of the human spinal cord?

The spinal cord is a cylindrical, noodle-like structure of nerve tissue that is composed of both white and gray brain matter. It is approximately 40 to 50 centimeters long, and about 1 to 1.5 centimeters in diameter. The nerves and nerve impulses that enter and leave the spinal cord control motor and sensory functions to and from the entire body.\nThe layers of meningeal tissue that encase the spinal cord are known as the pia, arachnoid and dura. These are the same three layers that cover the brain, and not only protect both the brain and the spinal cord, but also serve as conductors of nerve ..

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Does muscle weigh more than fat?

Adipose tissue, commonly called fat, has a density of approximately 0.9 grams per milliliter. Muscle has a density of 1.06 grams per milliliter. The difference in density between muscle and fat tissue means that equal volumes of each weigh different amounts. Therefore, muscle tissue is heavier than an equal amount of fat tissue. As water has a density of 1 gram per milliliter, muscle tissue sinks when submerged, while less-dense fat floats. Athletes with very little body fat have to swim harder to stay afloat.

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What is a volcanic neck?

A volcanic neck is referred to as a plug because unless the neck or plug is preserved, an active volcano can build up much pressure from trapped magma, which can trigger an explosive eruption. Once preserved, the volcanic neck or "plug" becomes erosion resistant, even as the surrounding rock erodes, exposing the volcanic neck. A popular tourist destination in Sri Lanka, Sigiriya or "Lion's Rock," is a volcanic neck with ancient castle ruins sitting atop on the flat surface.

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How big is a 7 millimeter kidney stone?

Kidney stones form from chemicals in the urine. Risk factors include not drinking enough fluids, being overweight and having a regular diet too rich in sodium and proteins. Some medicines also increase the risk of kidney stones. People more likely to get kidney stones include those with genetic predispositions, frequent urinary tract infections, insulin resistance, digestive diseases, surgery and certain other medical conditions. Men between the ages of 30 and 50 and postmenopausal women with low estrogen levels are particularly susceptible.\nSymptoms of kidney stones include severe pain, dark..

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What happens if you eat an oxygen absorber?

Iron poisoning is a common toxicological pediatric emergency, and the severity is dose dependent, according to Medscape. Kids may or may not experience symptoms, so it's important to observe them and not introduce new food for a period of time. If symptoms such as vomiting diarrhea or abdominal pain occur, it's important to seek emergency care. Symptoms typically present within six hours of iron overdose.\nIf symptoms of poisoning occur and then disappear, this could mean that the person has gone into the second stage of poisoning, which precedes shock, states the Merck Manual. The t..

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How is charcoal made?

During the charring process, volatile compounds like water, hydrogen, methane and tar are burned off leaving behind a lightweight, soft, black, porous material resembling coal. After charring, the resulting material is roughly 25 percent of its initial weight. This coal-like material is then formed into briquettes in preparation for the phase. It is important the wood used in the initial phase is not too brittle, or it crumbles and becomes useless.\nAfter this phase, many commercial manufacturers add small amounts of anthracite coal, mineral charcoal, sodium nitrate, starch, sawdust, borax and..

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