Christian Huygens was born in 1629 in the Dutch Republic. His father was friends with Meressene and Descarte. Huygens discovered the rings of Saturn in 1655. He invented the pendulum clock in 1656.
John Wallis invented the infinity symbol and aided the Cromwell Puritans. Calculus is the mathematical study of change. "Calculus" means a small pebble used for counting.
Robert Hooke published his microscope experiments in 1665. Anton Von Leeuwenhoek did not go to college. A doctor friend introduced him to the Royal Society. His discoveries started the science of microbiology.
Isaac Newton studied natural philosophy in college. Newton ruled the Royal Society for 25 years with an iron fist. Newton's science proved an alternative worldview. He came up with the laws of motion and gravity.
Friday, May 10, 2019
Barometer, Vacuum Pump, Minute Hand, Robert Boyle
The Barometer
The Barometer is made up of a tube and dish full of mercury. Mercury is a dense liquid metal. The Barometer led to the development of meteorology and electricity.
Vacuum Pump
Miners had trouble pumping water out of mines. Robert Boyle made the vacuum pump better. Vacuum pumps are used in air conditioning. A vacuum pump sucks up air.
The Minute Hand
It reduced clock error down to 15 seconds per day. The minute hand appeared in 1690. It was adopted almost immediately by everyone. They began replacing the pendulum clock by the 1940s.
Robert Boyle was born in 1627 and studied Galileo's work. He rejected the greek view of four elements. He believed in science as a way to glorify God. He is one of the founders of chemistry and the scientific method.
The Barometer is made up of a tube and dish full of mercury. Mercury is a dense liquid metal. The Barometer led to the development of meteorology and electricity.
Vacuum Pump
Miners had trouble pumping water out of mines. Robert Boyle made the vacuum pump better. Vacuum pumps are used in air conditioning. A vacuum pump sucks up air.
The Minute Hand
It reduced clock error down to 15 seconds per day. The minute hand appeared in 1690. It was adopted almost immediately by everyone. They began replacing the pendulum clock by the 1940s.
Robert Boyle was born in 1627 and studied Galileo's work. He rejected the greek view of four elements. He believed in science as a way to glorify God. He is one of the founders of chemistry and the scientific method.
Monday, March 25, 2019
Mersenne's Laws, Blaise Pascal, Rene Descartes
Mersenne's Laws:
Mersenne was born in 1558 in France. His laws taught people about the frequency of vibrations of strings, like a guitar. Thicker strings make lower sounds and thinner strings make higher sounds.
Blaise Pascal was born in 1623. Pascal invented the mechanical calculator. His father became a tax collector for the King of France. Pascal's calculator could add and subtract.
Pascal was a child prodigy, gifted in math. Pascal is best known for Pascal's laws. His work spread through Mersenne's network.
Rene Descartes loved the work of Galileo and other scientists. It made him want to be a scientist too. He invented the cartesian coordinates system, which is a basis for calculus. Calculus is a form of math.
Mersenne was born in 1558 in France. His laws taught people about the frequency of vibrations of strings, like a guitar. Thicker strings make lower sounds and thinner strings make higher sounds.
Blaise Pascal was born in 1623. Pascal invented the mechanical calculator. His father became a tax collector for the King of France. Pascal's calculator could add and subtract.
Pascal was a child prodigy, gifted in math. Pascal is best known for Pascal's laws. His work spread through Mersenne's network.
Rene Descartes loved the work of Galileo and other scientists. It made him want to be a scientist too. He invented the cartesian coordinates system, which is a basis for calculus. Calculus is a form of math.
Tuesday, February 26, 2019
Pulled Pork and Roasted Green Beans
Pulled Pork:
- Pork Tenderloin
- Salt, Peper, and Garlic Powder
- Barbeque Sauce
Mix it all together in a crockpot and cook it on low for 6-8 hours.
Roasted Green Beans:
- Olive Oil
- Fresh Green Beans
- Salt, Peper, and Garlic Powder
- Bacon Bits
Mix everything in a bowl and spread it out on a cookie sheet. Cook at 425 degrees for about 10 minutes, flip and cook for 10 more minutes. They should be soft with crisp edges.
Sunday, February 17, 2019
Kepler, Galileo, Slide Rule, John Napier
Kepler was born in 1571 in the Holy Roman Empire. Tycho died and Kepler was appointed his successor. Kepler was an astronomer, astrologer, and mathematician. Kepler tried to prove that God created the universe.
Galileo learned early science from his dad. He designed a new military compass and thermometer. He improved the telescope in 1609. He died when he was 77 years old in 1542.
The Slide Rule was invented in 1630. Napiers' book was a table full of logarithms. It was a calculation used for science. The slide rule continued to get better over the next 350 years.
John Napier was born in Edinburg, Scotland in 1550. He calculated over 10 million logarithms. It took him 20 years to finish his book.
Galileo learned early science from his dad. He designed a new military compass and thermometer. He improved the telescope in 1609. He died when he was 77 years old in 1542.
The Slide Rule was invented in 1630. Napiers' book was a table full of logarithms. It was a calculation used for science. The slide rule continued to get better over the next 350 years.
John Napier was born in Edinburg, Scotland in 1550. He calculated over 10 million logarithms. It took him 20 years to finish his book.
Compound Microscope, Compass, News Paper, Telescope
A compound microscope is used for looking at microscopic items. When we look through a microscope we are able to see things we don't usually see. Zacharias Janssen invented the microscope in 1590.
The use of the compass continued to spread. People used it, but they did not know how it worked. Robert Norman discovered the magnetic dip in 1581. He introduced the concept of "attractive force". This is why magnets work.
The Roman Government used to carry public announcements in stone. The Chinese sent out government news bulletins. News Paper quickly relayed information.
Hans Lippershey invented the very first telescope in 1608. His telescope only magnified an object, three times. Galileo learned of the telescope in 1609 and made an improved one.
The use of the compass continued to spread. People used it, but they did not know how it worked. Robert Norman discovered the magnetic dip in 1581. He introduced the concept of "attractive force". This is why magnets work.
The Roman Government used to carry public announcements in stone. The Chinese sent out government news bulletins. News Paper quickly relayed information.
Hans Lippershey invented the very first telescope in 1608. His telescope only magnified an object, three times. Galileo learned of the telescope in 1609 and made an improved one.
Tuesday, February 5, 2019
I Love Cooking!
Saturday, February 2, 2019
Making Maps, Jarius Mercator, Tycho Brahe, John Davis
Making maps began early on in history. Ancient Greeks and people in the Bible believed the earth was round like a ball. Some early maps left out useful tools for sailing.
Jarius Mercator was born in 1512. He went to the same school in France as Vesalius. He changed his name from Cream to Mercator. He received credit for inventing the globe.
Tycho Brahe was an astronomer. He made two observations in the night sky. In 1572 he observed a supernova. In 1578 he observed the path of a comet.
John Davis was a sailor and explorer from England. He wanted to find a Northwest Passage. He invented the backstaff. It told you your location in the water by measuring the shadow of the sun.
Jarius Mercator was born in 1512. He went to the same school in France as Vesalius. He changed his name from Cream to Mercator. He received credit for inventing the globe.
Tycho Brahe was an astronomer. He made two observations in the night sky. In 1572 he observed a supernova. In 1578 he observed the path of a comet.
John Davis was a sailor and explorer from England. He wanted to find a Northwest Passage. He invented the backstaff. It told you your location in the water by measuring the shadow of the sun.
Tuesday, January 22, 2019
The Heliocentric Theory, Nicholas Copernicus, Andreas Vesalius, Pencil
The Heliocentric Theory:
Copernicus' theory was slow to catch on. Without Copernicus' theory, there would be no GPS. By 1500, Europe was beginning to change significantly. The theory was physically wrong but accurately projected orbits.
Nicholas Copernicus was born in Poland in 1473 After Newton, Chinese took off. He had diverse talents but he specialized in astronomy. He believed science was possible because God sustains the universe
Andreas Vesalius was born in 1514 in Brussels. He was a doctor. He was interested in anatomy. In 1543, he published a book on anatomy. It had drawings of the insides of humans. The doctors before him did not want to do this hard work.
Pencil:
Writing instruments have been used for a long time. The Romans used an erasable wax tablet. Pencils markings last a long time. Pencils offer benefits to artists. Mistakes can be erased. Drawing can be lighter or darker depending on how hard you push. They can also be sharpened.
Copernicus' theory was slow to catch on. Without Copernicus' theory, there would be no GPS. By 1500, Europe was beginning to change significantly. The theory was physically wrong but accurately projected orbits.
Nicholas Copernicus was born in Poland in 1473 After Newton, Chinese took off. He had diverse talents but he specialized in astronomy. He believed science was possible because God sustains the universe
Andreas Vesalius was born in 1514 in Brussels. He was a doctor. He was interested in anatomy. In 1543, he published a book on anatomy. It had drawings of the insides of humans. The doctors before him did not want to do this hard work.
Pencil:
Writing instruments have been used for a long time. The Romans used an erasable wax tablet. Pencils markings last a long time. Pencils offer benefits to artists. Mistakes can be erased. Drawing can be lighter or darker depending on how hard you push. They can also be sharpened.
Monday, January 14, 2019
Mariner's Astrolabe, Double Entry Bookkeeping, Luca Pacioli, Leonardo Davinci
Mariner's Astrolabe: It was a tool used by sailors. You had to use two hands to hold it. It read the angles of the horizon. The astrolabe was successful all around the world.
Double Entry Bookkeeping: Double Entry Bookkeeping came to be after the Holy Roman Empire split into three kingdoms. Double entry bookkeeping protects you from theft because most criminals were dumb.
Luca Pacioli: Luca Pacioli went to an abacus school in Italy that taught arithmetic and business skills based on Arabic numerals. He wrote a book about chess. He popularized the double-entry accounting system. He wrote many books.
Leonardo Davinci: Leonardo Davinci was a famous painter and inventer. He is most remembered for the Mona Lisa.
Double Entry Bookkeeping: Double Entry Bookkeeping came to be after the Holy Roman Empire split into three kingdoms. Double entry bookkeeping protects you from theft because most criminals were dumb.
Luca Pacioli: Luca Pacioli went to an abacus school in Italy that taught arithmetic and business skills based on Arabic numerals. He wrote a book about chess. He popularized the double-entry accounting system. He wrote many books.
Leonardo Davinci: Leonardo Davinci was a famous painter and inventer. He is most remembered for the Mona Lisa.
Chess, Arquebus, Printing Press, Mainspring
Chess: A chess board has white and brown squares. There are 64 squares. Each player gets 16 pieces. Each player gets 8 pawns which represent foot soldiers. Knights are the main attackers. It quickly spread throughout Europe.
Arquebus: It made warfare cheaper. 25% of the King of Hungary's army carried an arquebus. A series of inventions improved a hand cannon.
Printing Press: The printing press is the single most important invention of the past 1,000 years. Books could now be printed faster and cheaper. The Bible was the first book to be printed.
Mainspring: The mainspring was first used in locks in the 1400s. Its use went into decline in the 20th century as electronics began taking over.
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