Gunpowder(火药) It was one of the greatest inventions.It is said that a Chinese man wrote about how to make it.At first,it was used for making fireworks.At the end of the Tang Dynasty,people began to use it in wars.The method of making it was brought to the Ar...
aThe most singificant developments in both ammunition and weapons followed the refinement of gunpowder in the thirteeth century ,which enabled it to be used in time as a porpellant explosive to propel missiles and other projectiles over long distances.[translate] ...
Gunpowder would change all this, empowering the individual to inflict unprecedented destruction. After all, how much can you fear one man in an age of daggers and clubs as opposed to the age of suicide bombers and lone gunmen? Explosives made such activities as the Guy Fawkes' 1605 Gunpowder...
The Assassins used their martyr tactics to pursue political ends, spreading terror and awe through the crowds who bore witness to their attacks. The sect was eventually wiped out by the invading Mongol hordes in 1257, but its legacy would continue centuries later. The development of gunpowder mad...
句意:活字印刷术、指南针、黑火药和造纸术被称为“中国的四大发明”。根据“The movable type printing, the compass(指南针), gunpowder and the paper-making”可知,这些是中国的四大发明,形容词great修饰名词,基数词four后接复数名词,因此应用备选词汇invention的复数形式inventions表示“发明”。故填inventions。反...
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 ...
Soon,the bow and arrow became one of the most common weapons (武器)in Europe.AJI this changed with the invention of gunpowder(火药). In the 16th century, theSpanish navy (西班牙海军)was beaten by the English. The Spanish depended a lot on bows and arrows while the ...
In the past, the shuttle was used for delivering satellites and conducting experiments in space. Within the mid-deck, there are racks of experiments to be conducted during each mission. When more space was needed, the mission used the Spacelab module, which was built by the European Space Age...
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After it was invented, the oceans were open to travel. And many new discoveries were made with the help of it. Gunpowder It was one of the greatest inventions. It is said that in the 3rd century a Chinese man wrote about how to make it. At first, it was used for making fireworks....