For example, this is an example of one of the chemical reactions that might happen when the main gunpowder charge burns:2KNO3 (potassium nitrate) + S (sulfur) + 3C (carbon in charcoal form) → K2S (potassium sulfide) + N2 (nitrogen gas) + 3CO2 (carbon dioxide)What makes the different...
Now imagine you keep adding gunpowder to the cannon. With the extra explosives, the cannonball will travel farther and farther before it falls. Add just the right amount of powder and impart just the right velocity to the ball, and it will travel completely around the planet, always falling...
There had to be a good way to light the gunpowder quickly. Wouldn't it be nice if you could fire the gun at the touch of a button (trigger)? It is interesting to think of the early guns as the first button-operated appliances! A lock is the ignition mechanism for a gun, and seve...
Back in the 19th century, sailors wanted to test if their gin rations had been watered down, so they would drizzle some gin over a pinch of gunpowder and take a match to it. If the gunpowder lit, then the gin was said to be "Navy strength." Today, Navy strength means a gin that'...
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 ...
Jan. 03, 2011 02:06 - Ms.caberra from united states
gunpowder and highly compressed hydrogen to fire projectiles at speeds far beyond that of a regular gun. The study revealed that the creatures could survive impacts up to about 900 meters per second into a target made of sand, and momentary shock pressures of up to 1.14 gigapascals (GPa). ...
Espresso is a central part of so many delicious coffee recipes. But if you don’t have an espresso machine, you might wonder if you can Read More Jan312024 How Much Caffeine Is in Stipe Miocic Extra Strength? 2024 Breakdown MelissaBrewing ...
The opening ceremony of the 2008 Olympic Games in Beijing featured ancient China’s four great inventions: the compass, printing press, paper and gunpowder. The lesson on display, as taught in classrooms across the country that today publishes the most research papers, is that Chinese innovation ...
The movable the printing.the compass(指南针)gunpowder and the paper-making are called four greats inventions of China.They make China play an important role in the history of human civilization (文明).(1)When was the movable type printing invented?