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If you slide a safety match across an untreated striking surface would it light?
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What happens when a bullet hits a hard surface?
It depends on what the bullet is made from & the angle at which the hard surface is struck. A copper plated, lead core bullet will fragment when striking a hard surface. This is intentional as it increases the killing power of the projectile. A bullet such as a "hollow point" is made to shatter when striking something like bone. This is why a tiny bullet can leave and exit wound ten times larger than the projectile itself. This is useful for hunting, as a shot that's merely close to a vital organ can still kill due to the sideways movement of bullet fragments within the animal. Geneva guidelines prohibit this type of expanding bullet for use during wartime since they cause massive tissue damage. A full metal jacket bullet will not expand on impact and in an armor piercing round it would simply transfer the force it carries into whatever object it was shot at... often times continuing through the target itself. This has its own advantages if the animal you're shooting has value as fur rather than food. Without knowing what sort of 'hard surface' you refer to, it's difficult to answer this question. The simple and safest answer is NEVER shoot at a hard surface. This should be taught in any state's required firearms safety course. For instance, if you shoot a rifle at a lake (from any angle other than straight on) the bullet will skip off the water and you have no idea where your round was fired.
What are some safety devices that reflect light?
safety vests
How does connecting a safety wire to aeroplanes help?
conecting a safety wire is good because it is a safety wire and it makes the aeroplane sFER
How momentum can be used for safety features?
Use the idea of momentum to explain safety features?.
How do the concepts of motion relate to safety and protection?
how do the concepts of motions relate to safety and predation
If you strike a safety match across an untreated striking surface will it light?
The striking surface must contain red phosphorus.
Is there a compound of phosphorus with a clear use that young people can understand?
How about phosphorus itself? Red phosphorus is used in making the striking surface for safety matches.
What does cross bolt safety mean?
A "Cross Bolt Safety" is a long pin or bolt the slides across the trigger mechanism from left to right. This prevents the trigger from firing when it is set to SAFE (S) and must be pushed out of the way to Fire (F). The other types of safety's are called "pivot" and "slide." They all prevent the trigger from being pulled or the hammer from striking the bullet.
Define safety helmet?
A safety helmet is a head covering intended to protect the head from injury as a result of striking or being struck by something. Safety helmets are used in sports (such as American Football) recreation (such as bicycle and motorcycle riding), and in the workplace.
What actors and actresses appeared in Safety on the Surface - 1958?
The cast of Safety on the Surface - 1958 includes: Ewan MacColl as Himself - Commentator Russell Napier as Himself - Commentator
How does a match work?
Although you may not know it, striking a match starts a chemical reaction. There are two types of matches: safety matches and "strike anywhere" matches. A safety match can only light when someone strikes it against the striking surface on the side of the match box. A "strike anywhere" match can be lit by striking the match on anything solid. A "striking surface" is made of sand, powdered glass, and a chemical called "red phosphorus". The head of a safety match is made of sulfur, glass powder, and an oxidizing agent. An oxidizing agent is a chemical that takes electrons from another chemical. When a chemical loses electrons we say it has been oxidized. An oxidizing agent is necessary to keep a flame lit. Oxygen gas is a common oxidizing agent. A simple test for oxygen is to hold a red hot (no flame) piece of wood in a tube of gas that might be oxygen. In oxygen things will burn much faster than in air, and the wood will burst into flame. When a match is struck on the striking surface of its box, the friction caused by the glass powder rubbing together produces enough heat to turn a very small amount of the red phosphorus into white phosphorus, which catches fire in air. This small amount of heat is enough to start a chemical reaction that uses the oxidizing agent to produce oxygen gas. The heat and oxygen gas then cause the sulfur to burst into flame, which then catches the wood of the match to catch on fire. A "strike anywhere" match works in a similar way, but instead of phosphorus being on a striking surface, it is added to the head of the match. You can tell the difference between the two types of matches by looking at the colors of the match heads. A safety head is only one color, but a "strike anywhere" match is two colors: one for the phosphorus, and one for the oxidizing agent.
Does a glock have safety?
Yes and no. The Glock does not have an external safety that is operated by the shooter. The safety mechanisms are controlled by the trigger, and function when the trigger is pulled. If the trigger is NOT pulled, the safety mechanisms prevent the firing pin from moving forward and striking the cartridge. However, if a Glock has a cartridge chambered, AND you pull the trigger, the gun WILL fire.
Who gained fame by criticizing striking Boston police with the words there is no right to strike against the public safety by anyone anywhere anytime?
Calvin Coolidge -mE
Why is striking important?
The purposes of the strike is to achieve something that a universal group wants i.e. higher wages, better insurance, or more safety requirements.
What year was the safety match invented?
Johan Edvard Lundstrom patented his safety match in 1855, in Sweden. He had come up with the idea of putting some red phosphorous on sandpaper inside the box of matches, with different chemicals on the match head. The match would remain unlit unless it was struck against the specially prepared striking surface. The matchbook was developed and patented by Joshua Pusey in 1889, with the striking surface on the inside. The Diamond Match Company had invented a similar matchbook, but with the striker on the outside. In 1996, they bought Pusey's patent and made him a job offer with their company. They went on to patent the first nonpoisonous match in the US.
Which of these is an advantage of surface mining?
Working aboveground increases safety for miners.
The safety belt should be fastened across the hips?
A safety belt should be worn at all times when you're in a vehicle. It should be worn across the hips, versus abdomen, to prevent stomach injury should you get in an accident.
