Igniting a flammable gas is, naturally, a hazardous process. But using the correct fuel minimizes the risk. Acetylene,gasoline, gunpowder and oxygen are dangerous, and spud guns should never use these fuels. Stray projectiles can cause property damage, serious injuries and death. An ideal spud g...
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All that we vainly hope for from life is granted vicariously. PASSAGE THREE It is now June 1567. Two months previously the explosion to Kirk O"Field, which awakened Edinburgh, startled courts as far away as Rome. In the flash of gunpowder, England, France, and the Holy See received a...
The fact is, there's actually no gunpowder used in these big cannons (and, historically, never has been), which can be more than 30 feet (9 meters) long [source: American Profile]. Instead, modern cannons employ the power of compressed air or springy bungee cords. Performers keep the ...
Belleville spring - A piece of curved steel shaped like a doughnut, used to cushion heavy loads Black powder - A gunpowder used as an explosive, typically made of potassium nitrate or sodium nitrate, charcoal and sulfur Delay element - A chemical compound that burns for a set time before ign...
Imagine you place a cannon atop a mountain and fire it horizontally. The cannonball will travel parallel to Earth's surface for a little while but will eventually succumb to gravity and fall to the ground. Now imagine you keep adding gunpowder to the cannon. With the extra explosives, the ...
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In this way, the pump is constantly pushing out fluid, allowing a continuous stream of fuel (and therefore a constant blast of fire). Soon after this sort of weaponry came into use, it was eclipsed by another pyrotechnic technology: gunpowder. Over the next thousand years, gunpowder ...
there might have been a kid in your neighborhood who learned how to make gunpowder. And that kid probably built bigger and bigger bombs until he either got bored or did some serious damage to himself. Creating a virus is a little like that -- it creates a virtual bomb inside a computer...
aFifth, at this time, Europe began to have more advanced sailing technology and military technology. The invention of gunpowder contributed to the generation of guns and cannons, so they can protect their own lives and safety. The invention of the compass so that they will not get lost. 正在...