Essay #24 History Of Inventions
Hello, in today’s lesson I will be talking about the mercury barometer, the vacuum pump, the pendulum clock, and Robert Boyle. I hope you enjoy, let’s get started.
Mercury barometer
The mercury barometer is a tool that measures atmospheric pressure, it consist of a tube and dish full of mercury, a dense liquid metal. If you put your finger on top of the tube filled with mercury were normally the mercury would be poured inside of, and then you put it in the dish A vacuum will appear. The level changes along with the air pressure, this tool, if you didn’t know, helps us predict the weather. Cool right. My mom said she used to playing with mercury when she was a kid, before they figured out it was toxic. She said it was like this. It was practically a ball rolling on the ground that when you hit it it breaks into other little balls I just roll around and it’s like there’s no gravity, or I should say friction because they didn’t float.
Vacuum pump
vacuum pump creates vacuums, its pressure is lower than atmospheric pressure, high pressure forces fluid up a straw, so when you drink and suck up a straw, water, or juice, or whatever you’re drinking comes up. The inventor of the vacuum pump was van Gurick.His work generated a lot of interest, and general vacuum pumps are used in air conditioning, and also in factories. By 1857 a geissler pump was invented. I honestly like vacuum pumps, I watched a video like this, so you had a marshmallow right and you had your vacuum pump and a glass jar, or at least like a top part and it had the vacuum pump connected to a see-through cord, and you put the marshmallow inside of that jar that was placed on top of a plate with a hole in the middle and you would turn the vacuum pump on the marshmallow got bigger and bigger the more time I spent in there with a vacuum pump on until it got to his limit and decreasing size and became smaller and more wrinkled than a normal marshmallow, even though marshmallows aren’t small or wrinkled, because these were big jumbo marshmallows.
The pendulum clock
The pendulum clock removed old design defects, for example it reduced clock error down to 15 seconds per day, in the making of this new clock they, or scientist discovered that short swings are more accurate than long swings. These clocks became the time keeping standard until the 1940s, but before that this clock made it possible for the minute hand to be added by 1690. This clock spread quickly, and I mean quickly. But like I said if you can taken over by the electric clocks in the 1940s. The pendulum clock is now a sort of collectible. Many people have it in their houses for show, maybe some people also have it for real too.
Robert Boyle
Robert Boyle was born in 1627 in Ireland, he became a member of the invisible college. He learned of the vacuum pump in 1657, he wrote a book called the Skeptical chemist. He rejected the view of four elements he proposed on alternative, matter was made of atoms. He’s Christian faith lead him to explore this concept. He also moved chemistry away from alchemy, because in those times people thought the chemistry was alchemy. So overall I would say Robert Boyle changed how things were looked at, for example like I said before he rejected the view of the four elements, and like I said before he also moved chemistry away from alchemy.
I hope you enjoyed today’s essay about the mercury barometer, the vacuum pump, the pendulum clock, and Robert Boyle. Would you like to share with me what you learned about from today’s lesson. Bye and see you next time.
AnyTime2Learn 