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Ancient Romans did not use gunpowder. Gunpowder was invented by China around the middle ages.
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The first documented note of gunpowder was in China, in around 142 A.D.
The Chinese invented gunpowder in 850 B.C.
Gunpowder will ignite somewhere between 300 to 350° C
off the top of my head i think its around 10 %
It was invented in the 1800s. Soldiers used gunpowder in the Civil War and both World Wars. Gunpowder has been around for a very long time. :)
It was coined around the 19th century and it was manufactured around 1920
Wei Boyan did not invent gunpowder. Gunpowder is believed to have been invented in China around the 9th century by Taoist alchemists searching for an elixir of immortality.
There are many ways that you can frame within a photograph. If you are using a computer program to edit pictures, you have the option to add frames or different shapes around the photograph.
It varies between types of loads, but on average, around 4 grams.
Gunpowder, also called black powder is a mixture of sulfur, charcoal, and potassium nitrate. Interestingly, all three ingredients in gunpowder can be bought at your local garden center. Gunpowder was first produced by the Chinese around about the year 1040. It is used in multiple explosives, like some grenades.