I learned about three inventions and one inventor. The inventions are the coke-fired blast furnace, the Newcomen steam engine, and the octant. The inventor’s name is Thomas Newcomen. First, I learned about the coke-fired blast furnace. Darby invented the coke-fired Blast furnace and figured out how to make iron thinner. The coke-fired blast furnace iron was used to build the first iron arch bridge. Second, I learned about the Newcomen steam engine. It performs mechanical work and uses the vacuum to power the pump. It was used to power other tools and machinery. Third, I learned about Thomas Newcomen. Newcomen was born in Dartmouth in 1663 and he became an iron monger. Newcomen invented the Newcomen steam engine and was his greatest achievement. Lastly, I learned the octant. It measures distances between celestial objects. The octant is mostly used by sailors.
Category Archives: History 4
Lesson 125 Essay
I learned about three inventions and one inventor. The inventions are the piano, the thermometer, and the seismometer. The inventor’s name is Gottfried Leibniz. First, I learned about Gottfried Leibniz. The Leibniz wheel was crucial for mechanical calculators. He invented calculus and was a practical inventor and engineer. His progress with the mechanical calculator kept the field alive. Second, I learned about the piano. The piano is used for teaching music education. Playing the piano became a family event and its popularity fell in the 1900s. Third, I learned about the thermometer. Thermometers measure temperature. Thermometers are used in medicine to save lives and devise cures. Last, I learned about the seismometer. Seismometers measure earthquakes. The seismometer needs a scale to complete its measurements.
Lesson 120 Essay
I learned about one invention and three inventors. The invention is called calculus. The two inventors are Christiaan Huygens, Anton Van Leeuwhoek, and Isaac Newton. First, I learned about Christiaan Huygens. He discovered Saturn’s rings in 1655 and invented the pendulum clock in 1656. He also discovered the mathematical formula for centripetal force. Second, I learned about calculus. Calculus is the mathematical study of change. It explains music and motion and can be used in calculators and computers. Third, I learned about Anton Van Leeuwhoek. He is known for microscopic discoveries and he made his own microscopes. Google recognized his 384th birthday in front of millions of people on October 24, 2016. Last, I learned about Isaac Newton. He studied natural philosophy in college in 1665. Newton’s work revolutionized science and helped us put men on the moon. He discovered laws of motion, gravity, and also classical mechanics from motion.
Lesson 115 Essay
I learned about three inventions and one inventor. The inventions are the mercury barometer, vacuum pump, and the pendulum clock. The inventor’s name is Robert Boyle. First, I learned about the mercury barometer. Barometers measure atmospheric pressure and have a tube and dish full of mercury, a dense liquid metal. A strange glow in the barometer’s tube prompted the study of electricity. Second, I learned about the vacuum pump. A vacuum is generally an area of lower pressure than atmospheric. The vacuum pump inspired Boyle who became the father of chemistry. Third, I learned about the pendulum clock. The pendulum clock releases one gear tooth per swing. It became the universal time keeping standard. Last, I learned about Robert Boyle. Robert was born in 1627 and studied Galileo’s work. He became a member of the invisible college to conduct scientific investigation. He believed science as a way to glorify God. He moved chemistry away from alchemy.
Lesson 110 Essay
I learned about three inventions and one inventor. The three inventions are Mersenne’s Law, Cartesian Coordinates, and Mechanical Calculator. The inventor’s name is Blaise Pascal. The first invention I learned is Mersenne’s Law. His laws tell how to tune a string instrument. Mersenne established the science of acoustics. The second invention I learned about is Cartesian Coordinates. His Coordinate System allows the plotting of geometric shapes in algebraic notation 2x + 2x = 4. The Cartesian Coordinate System was vital for calculus. The third invention I learned about is the Mechanical Calculator. A mechanical calculator is a mechanical device used to automatically perform the basic operations of arithmetic. The first commercial success arose in 1851 and they were produced until the 1970s. Lastly, I learned about Blaise Pascal. He investigated the concept of the vacuum and he got involved with experiments associated with the invention of the barometer. He was an important contributor to science and his law produced important inventions.
Lesson 105 Essay
I learned about three inventors and one invention. The inventors’ names are Johannes Kepler, Galileo Galilei, and John Napier. The invention is the slide rule. First, I learned about Johannes Kepler. He viewed the universe as an analogy of the Trinity. He developed a problem that required a new tool to solve, which required calculus to solve it. Kepler’s work inspired Newton. Second, I learned about Galileo Galilei. He was a pioneer and also controversial. He improved the telescope in 1609 and he applied mathematics to physics. He advanced the scientific method. Third, I learned about the slide rule. It became a symbol for the engineering profession by the 1950. The slide rule made it possible to do engineering. Lastly, I learned about John Napier. His greatest achievement was inventing the logarithm. He is best known for the King James version of the bible.
Lesson 100 Essay
I learned about three inventions and one inventor this week. The inventions are the compound microscope, the newspaper, and the telescope. The inventor’s name is Wiliam Gilbert. First, I learned about the compound microscope. Compound microscopes generate 1000 xt magnification. People use it to see blood cells in t-rex bones. Second, I learned about Wiliam Gilbert and his life. He resurrected scientific interest in magnetism and introduced the concept of attractive force. His book impacted the course of history. Third, I learned about the newspaper. Newspapers quickly transmit information. They also captured the universities, the churches and the courts. Finally, I learned about the telescope. They are used to magnify far away objects and improve our ability to see into the cosmos. They allow us to see waves invisible to our eyes.
Lesson 95 Essay
I learned about two inventions and two inventors. The two inventions are the Mercator Projection Map and the Backshaft. The two inventors are Mercator and Tycho Brahe. First, I learned about the Mercator Projection Map. After some refinements, the Mercator Projection became standard by the mid 1600s. By the 20th century it was a standard map in classrooms. Second, I learned about Mercator. He is known for the Mercator Projection Map and the atlas. Google Earth and similar software carry on Mercator’s legacy. Third, I learned about Tycho Brahe. He created a compromise model that preserved his biblical temptation. His Christian faith kept his work grounded in science. Lastly, I learned about the backstaff. It determines the sun’s altitude by casting a shadow as the marking line. It also helped English sailors colonize America.
Lesson 90 Essay
I learned about two inventions and two engineers this week. The two inventions are the Heliocentric theory and the pencil. The two inventors are Nicholas Copernicus and Andreas Vesalius. First, I learned about the Heliocentric Theory. The Heliocentric Theory is the theory of Copernicus. The Heliocentric Theory revealed the structure of the solar system and helped begin space exploration. Second, I learned about Nicholas Copernicus. He believed science was possible because God sustains the universe. Without Copernicus we would not have the GPS. Third, I learned about Andreas Vesalius. He published a crucial essay on anatomy in 1543. He introduced a method of investigation to the field of anatomy. Finally, I learned about the pencil. Pencils are graphite rods encased in wood. They make durable markings. They are cheap to make and use.
Lesson 85 Essay
I learned about two inventions this week and they are the astrolabe and the double entry bookkeeping. I also learned about two inventors named Luca Pacioli and Leonardo da Vinci. The first invention I learned about is the astrolabe. It was a two-handed instrument used to read angles above the horizon. It was combined with ancient star charts to figure out the latitude. The second invention I learned about is the double entry bookkeeping. It’s an accounting system in which each transaction is recorded twice. It helps keep everything balanced. The first inventor I learned about is named Luca Pacioli. Luca’s most famous book is a Practical Business Handbook. One of his biggest impacts was the spread of double entry accounting. The last artist I learned is named Leonardo da Vinci. He studied light mechanics and the human body. He was also an engineer. He drew designs for inventions and was an artist. He is mostly remembered for the Mona Lisa.