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What is a touchole in a gun?
In very old guns the powder was ignited when a match was applied to a small hole which was drilled through the barrel into the chamber. This hole was called a touch hole.
What can be used to ignite a match?
A match can be ignited by striking it against a rough surface, such as the striking strip on the matchbox.
Can you trace a bullet back to its gun?
Yes, forensics experts can use a process called ballistics analysis to match a fired bullet to the gun that fired it. This involves examining unique markings left on the bullet by the barrel of the gun, such as striations or rifling marks. By comparing these markings with test-fired bullets from a suspected gun, investigators can determine if there is a match.
When were the first matches made?
John Walker, an English chemist, invented the first friction match in 1826. The match is ignited by striking the combustible end against a rough surface.
Why do we light a match before turning on the gas for a Bunsen burner?
We light a match before turning on the gas for a Bunsen burner to ignite the gas and create a flame. This ensures that the gas is ignited safely and prevents the buildup of gas in the air which could be dangerous if ignited suddenly.
Who envent the gun?
Technically, the "gun" was invented by the Chinese when they first created gun powder. A hollow tube was placed vertically on the ground, loaded with a small amount of powder, an object was stuffed inside, and then the powder was ignited.
Where does the energy in an unburned match come from?
The energy in an unburned match comes from the potential energy stored in the chemical bonds of the match head or the striking surface. This potential energy is released in the form of heat and light when the match is ignited and the chemical reaction takes place.
What form of energy does an unlit match contain?
An unlit match contains chemical potential energy stored in the matchstick, specifically in the match head which contains chemicals that can undergo a chemical reaction (combustion) when ignited.
What is used to ignite a burner?
A burner is typically ignited using a spark produced by a piezoelectric igniter or a match or lighter. Gas burners may also have a pilot light that remains on to ignite the burner when needed.
What type of energy does a match contain?
A match contains chemical potential energy stored in the match head. When ignited, this potential energy is released as thermal (heat) energy and light energy through combustion of the matchstick.
How much energy is in a match head?
Technically its potential energy until it's lit, and then it depends on the match brand.
In an automotive engine the pattern in which the cylinders are ignited is called the?
firing order.
