RPC Essays

History 04 Lesson 90

Heliocentric Theory- It was invented in the early modern age. It is important so we can measure how far away planets are and to measure how heavy a planet is. Nicolaus Copernicus- Nicolaus Copernicus was born Feb 19, 1473. At Torun, Poland. He died 1543. At Frombork, Poland. He specialized in astronomy. He invented theContinue reading “History 04 Lesson 90”

English 04 Lesson 85

I don’t know what the best story or book I have read is. Cause I have read and heard so many books and stories. I can’t remember half of them.

History 04 Lesson 85

Mariner’s Astrolabe- Before the mariner’s astrolabe there was the cross staff and the quadrant. The mariner’s astrolabe can be used in wind and on ships. Hipparchus invented the mariner’s astrolabe in 2nd century BC. He invented it in Oman. Double-Entry Bookkeeping- Luca Pacioli invented double-entry bookkeeping in 1494 AD. He invented it in Milan. IfContinue reading “History 04 Lesson 85”

History 04 Lesson 80

Chess- Chess was mostly liked and played by the nobility. But some of the poorer people played it. It teaches strategy and consequences of our actions. Also, it teaches time perspective. It is a two-player game. Each player has 16 game pieces. With 8 pawns, 2 bishops, 2 knights, 2 rooks, 1 queen, and 1Continue reading “History 04 Lesson 80”

History 04 Lesson 75

English Longbow- English longbows were the strongest bow of the middle ages. They were as long as a man is tall. They could pierce the thickest plate armor. The bows are used to generate power. Spurs- Spurs are the things that you see on a cowboys boots in movies (they are the things that lookContinue reading “History 04 Lesson 75”

History 04 Lesson 70

Spectacles- A long time ago when you got old it was BAD because when you get old you would start to lose your vision! That was very bad because some people were very good teachers then they got old and couldn’t teach anymore so they had to go into premature retirement (which would be veryContinue reading “History 04 Lesson 70”

Science 04 Lesson 72

Basking sharks are the second largest fish in the world right after the whale shark. It lives in cool and temperate water and only feeds on plankton I wonder how they get so big? To catch plankton, it keeps its mouth wide open and swims through the water. Once it is done and closes itsContinue reading “Science 04 Lesson 72”

History 04 Lesson 65

Buttons- Buttons are essential to life they help tighten clothes more than pins and brooches (that is what people had to use on their clothes a long time ago). A little ice age was the thing that made the invention of the button. They can strap purses together and other sorts of pouches. Rich peopleContinue reading “History 04 Lesson 65”


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