For a brief time in world history, China dominated maritime exploration. Even though quite unintentionally, a previous century’s invention of the magnetic compass played a pivotal and facilitating role and provided Chinese sailors a two-hundred-year head start over their European counterparts. However, it was not until blending those navigational advancements of the day, together with nautical technologies of shipbuilding architecture and propulsion found China readily thrust to the forefront. Emperor Yongle of the Ming Dynasty desired to leverage those technologies to construct an immense armada attesting to the court’s military prowess. Supported by a backdrop of politically favorable winds and a generous endowment, the Emperor commissioned the undertaking of explorations to an experienced Admiral named Zheng He.
The Satllite Archeology can find where you are on the earth from your phone or any technology that you
Although the report released by Lawson provided insight about earthquake occurrence, it cannot help scientists and geologists to accurately predict when the next earthquake will occur. However, with advanced monitoring systems and computing power may help in better preparation of future earthquakes. The 1906 San Francisco earthquake brought geologists and scientists together and led to an understanding of earthquakes; how they occur, why they occur and how the world can prevent and manage such disasters in
The casualty rate of a flamethrower during World War 1 was 82%, which is really high considering only some were intended to kill. The flamethrower uses pressurized air and burning oil to shoot out a flame that can reach up to 60 feet. Some even used coal and nitrogen. The flamethrower has multiple uses. Some are to inflict psychological damage to the enemy to scare them off.
In the 904AD the army used the gunpowder in the form of crude rockets [1]. They would insert small stone cannonballs inside the bamboo tree tubes and blast them out by igniting the gunpowder at the end. The Chinese emperors had tried to keep the discovery of gunpowder as a secret weapon, but before the 1100s AD their secret spread to other nations such as the Islamic Empire and the Roman Empire. The knowledge about gunpowder spread out very fast throughout the word in the 13th century due to the Mongol Conquests.
IQ3- Why do all maps have a Scale, Legend, and Compass? All maps have a scale, legend, and compass because a scale is the distance in the map to an actual area. A legend tells you what the symbols on the map represents. A compass shows the directions such as North, South, West or East.
Many celebratory firework shows were coupled with dancers in the streets who wore different costumes and moved through the clouds of colored smoke. The fact that gunpowder had such explosive power proved to enhance the Chinese economy both in the Tang Dynasty and even more so into the Song Dynasty because it allowed for an increase in their copper supply. The Song Dynasty marked the turning point in which the Chinese realized that gunpowder would make a good weapon against their enemies. The Song Dynasty’s military created numerous gunpowder devices that they aimed towards their primary enemy, the Mongols. Some of the weapons they invented included the flamethrower, hand held cannons, and hand grenades.
Gunpowder is made up of saltpeter- a common name for the oxidizing agent potassium nitrate- sulfur and charcoal (Heather Whipps, 2008). When the Chinese scientists first mixed the ingredients together it resulted in smoke and flames, causing their hands and faces to burn (Heather Whipps, 2008). One of the first
So until they discover something else that is better gunpowder will still be used for many years to
Classifying earthquakes was not an easy task, but thankfully, someone persevered long enough to develop a tool to do exactly that. Charles Richter, an expert seismologist, spent valuable hours creating a device which organizes earthquakes by their size. Charles Francis Richter was born on a farm in Hamilton, Ohio on April 26, 1900. His parents were divorced while he was young, so he grew up with his grandfather who moved the family to Los Angeles in 1909. While in Southern California, “Richter went to a preparatory school associated with the University of Southern California, where he spent his freshman year in college”
By the 13th century, gunpowder was being used extensively by Chinese and Mongol forces. Many credit the Mongol’s invasions of Persia and eastern Europe in the 13th century as the catalyst for which the invention of gunpowder was able to spread so quickly. The Moors used gunpowder cannons during the siege of Seville as early as 1248 A.D. By the 14th century Edward I, the king of England and the 'Hammer of the Scots', used cannons during battles against the ‘Scots’ while taking control of Scotland. During the 100 years war, both the English and the French used cannons against each-other.
What they can do is make use of seismometers that passively record ground motion in the form of seismic waves. Improving software and telemetry from a network, seismologists on the West Coast of the United States are testing earthquake early warning. Earthquake early warning systems are the best tool that seismologists have to forewarn the public when an earthquake will arrive, but only after the fault has slipped. When a fault slips, two types of waves are generated, the primary wave and the secondary wave.
This paper talks about Chinese invention of Gun powder during the 9th century and how it evolved to other countries and leads to further inventions. Gunpowder is the first chemical
MAGNETIC COMPASS Compasses work by using magnets. The magnet inside them is drawn to the Earth’s magnetic field and the magnetic poles. The magnetic compass brought lots of change about for medieval Europe. It allowed more trade and the exploration of new places.
This essay is about how gunpowder can be used as a good thing or a bad thing and how it is used today. In the first source it stated that gunpowder was an accident by The Chinese and they were trying to make a potion for immortality but instead they ended up with gunpowder. Which contains potassium nitrate, common charcoal, and sulfur. The person who invented the record of gunpowder is Wujing Zongyao, and the first person to create gunpowder was Tang Dynasty and Song Dynasty.
