RPC Essays

History 04 Lesson 145

Soda Water- Who invented it? Joseph Priestly. When was it invented? 1767. Where was it invented? England. How does it work? Soda water is made by adding carbon dioxide under pressure. Why is it important? Soda water improves satiety, or the feeling of fullness and that could be a benefit for people who constantly feelContinue reading “History 04 Lesson 145”

History 04 Lesson 135

The Flying Shuttle- Who invented it? A person named John Kay. When was it invented? 1733. Where was it invented? Essex Why is it important? It allowed a single weaver the weave much wider fabrics and it could be mechanized, allowing for automatic machine looms. Marine Chronometer- Who invented it? A person named John Harrison.Continue reading “History 04 Lesson 135”

History 04 Lesson 130

Coke-Fired Blast Furnace- Who invented it? Abraham Darby 1st at Coalbrookdale When was it invented? 1709 Why is it important? So that we don’t cut down forests faster than we already are. When Abraham Darby 1st invented the coke-fired blast furnace he was only 30! Newcomen steam engine- Who invented it? Thomas Newcomen did inContinue reading “History 04 Lesson 130”

English 04 Lesson 125

I actually have two favorite seasons Summer, and Winter. I like winter because when it snows, I can go skiing, and sledding. And have snowball fights with my sisters if they come over. Or with my friends if they can come over. I like summer because that is when I either play baseball or football.Continue reading “English 04 Lesson 125”

History 04 Lesson 125

Gottfried Leibniz Who invented him? God did in July 1, 1646. Where was he born? Leipzig, Germany. Why is he important? So that we have the Leibniz calculator and other calculators. He was the first person to start a scientific journal in the holy roman empire. The Piano- Who invented it? Bartolomeo Cristofori did inContinue reading “History 04 Lesson 125”

History 04 Lesson 120

Christiaan Huygens- Who invented him? God did in April 14, 1629. He invented him at The Hague Netherlands. He invented several things, and his biggest invention is the pendulum clock. And he discovered multiple things, and his biggest discovery was the rings of Saturn. Calculus- Who invented it? Isaac Newton gets the credit even thoughContinue reading “History 04 Lesson 120”

History 04 Lesson 115

Mercury Barometer- Who invented it? Someone named Evangelista Torricelli invented it in 1643. But I don’t know where he invented it. How does it work? You open a tube in a pool and the pool fills up a little and the tube loses a little bit of mercury until the atmospheric pressure is level withContinue reading “History 04 Lesson 115”

History 04 Lesson 11000000000000000000000000000000

Mersenne’s Laws- Mersenne’s laws mathematically determine how to tune string instruments. Galileo had the idea first but Mersenne proved the laws experimentally. Mersenne’s laws govern the construction and operation of string instruments, such as pianos and harps. Cartesian Coordinates- The cartesian coordinate system unified geometry and algebra for the first time. Cartesian coordinates established aContinue reading “History 04 Lesson 11000000000000000000000000000000”

English 04 Lesson 110

My talent is athletics and I am good at sports. I play sports all throughout the year. I play soccer, basketball, baseball, and football. I use my talent to play and win games.


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