You might think it too high to say 90% ... but it really was 90% of funding for the Interstate Highway system that was provided by Congressional funding. This was a huge program signed into law during the presidency of Dwight Eisenhower. It was considered essential to the national interest. The Federal-Aid Highway Act passed in 1956 allocated $26 billion (in 1956 dollars!) to this monumental road-building effort.
Copernicus<span> contributed the heliocentric model of the universe, </span>Brahe<span> contributed astronomical data, </span>Kepler<span> contributed elliptical orbits of planets, </span>Galileo<span> contributed his telescopic discoveries, and </span>Newton<span> contributed his laws of gravitation.
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https://quizlet.com/8423267/chapter-14-17-flash-cards/
Answer:
The Gunpowder Revolution
Explanation:
The introduction of gunpowder to warfare represented the beginning of the large-scale exploitation of chemical energy by human societies.1 300–1650. Few inventions have had an impact on human affairs as dramatic and decisive as that of gunpowder. Gunpowder became the catalyst for every bullet fired, bomb detonated, and mine exploded. Once gunpowder became utilized by military forces, it became almost essential for any type of victory; weaponry powered by gunpowder is superior in power to traditional projectiles and melee weapons.Their explosive invention would become the basis for almost every weapon used in war from that point on, from fiery arrows to rifles, cannons and grenades. Gunpowder made warfare all over the world very different, affecting the way battles were fought and borders were drawn throughout the Middle Ages.gunpowder, any of several low-explosive mixtures used as propelling charges in guns and as blasting agents in mining. The first such explosive was black powder, which consists of a mixture of saltpetre (potassium nitrate), sulfur, and charcoal.Gunpowder made men equal on the battlefield as a bullet would negate all the years of training a knight receives while making armour and cavalry less effective therefore preventing the knights, lords and Kings from ruling through force as gunpowder made warfare and rebellion both easier to occur and harder to crush.At first, gunpowder was used to start fires. The Chinese also used it to blind, burn, poison and provide a smoke screen. Later, it was a component of flaming arrows and rockets and was used to fire projectiles.Gunpowder weapons changed war because they are stronger, more accurate, have a greater range and are able to be reloaded faster than medieval weaponry. Gunpowder was invented long before the Europeans were introduced to it.Gunpowder lead to cannons on castles and then later to the artillery that will shoot down airplanes. Altogether this small thing made a huge effect on the world and made a new war. Gunpowder changed a lot all over the world. By the first flying fire to the rifle that could reach long distance and penetrate armor.The three Islamic gunpowder empires are known for their quickly gained success in dominating the battle fields using their newly acquired firearms and techniques.Song military engineers found gunpowder to be helpful in siege warfare, leading to the development of early types of rockets, cannons, bombs, and mines.It was employed in warfare to some effect from at least the 10th century in weapons such as fire arrows, bombs, and the fire lance before the appearance of the gun in the 13th century.At first, gunpowder was used recreationally, at first emperors would create gunpowder in order for firework displays (the Chinese believed that fireworks would scare away evil spirits,) it was no longer just an experiment, now it was being used to full effect.What inventions came from gunpowder?
The invention of gunpowder made fire a quick and deadly weapon. The Chinese developed flaming arrows and flying (projectile) weapons. They also used it to invent land mines in the 13th century. Before gunpowder all weapons depended on the user's strength.In Europe, the emergence of guns is said to have led to massive changes in state and society. The so-called “gunpowder revolution” supposedly destroyed feudalism and brought about the emergence of the centralized state.Although largely obsolete in modern weaponry, gunpowder, also known as black powder, is still used in historical weapons, fireworks and pyrotechnics. The explosive is a combination of varying ratios of potassium nitrate (or "saltpeter"), sulfur and charcoal.
I think you need to reference the opinion you’re asking about so we can see. :)
