Homeschooling, Writing & Fun
Today I will be talking about lessons 91 and 92. Lesson 109 I learned about the Mercator Projection map. Maps depict the world on a flat surface. But, since the world is spherical it is hard to make an accurate representation of the world on a flat surface. In 1500 sailing was a big business. … Continue reading My History Review
The Heliocentric Theory The Heliocentric theory is the "theory" that the earth and planets revolved around the sun. It was made by Copernicus. And it made more sense than the Ptolemaic model. The Heliocentric theory predicts the motion of the planets and, also shows where the planets and the stars and moon are in the … Continue reading History
Mariner's Astrolabe The Mariner's astrolabe improved navigational technology. Before the Mariner's astrolabe people used the cross staff and the quadrant. But there was a problem. The boat would rock so it would be hard to keep a straight eye on the stars. The Mariner's astrolabe was made of heavy brass with holes cut into the … Continue reading History
Spectacles The invention of spectacles made a big impact in people's lives, especially scholars and teachers and people that needed to read for their jobs, because spectacles made it so that people could see better. Scholars could keep working even if they were old and had bad vision. That made it possible for people to … Continue reading The impact on history of some inventions
Lesson 65 Buttons Before buttons were invented people did their clothes up with broaches. They never fit quite right. The button made it possible for people's clothes to fit tighter so they could be warm and also it made it so you could tell someone's class. When the button was first invented they were very … Continue reading The Impact of Some Inventions in History
Lesson 45 The Romans made beautiful glass that was clear and thin glass before the Roman Empire collapsed. When it collapsed the water in the astrolabes dried up and people had to move away and find nice clean water. Since they had to survive they had no time to make glass and improve their skills. … Continue reading How glass changed when the Roman Empire collapsed
Lesson 40 My favourite invention is the waterwheel! I love the waterwheel because it is used for so many things: sawing, and hammering, mining, and even for grinding grain. They are really interesting because you do not have to do anything to power them, you just let the water flow through. Most of all they … Continue reading My favourite invention!
Lesson 35 The wheelbarrow is a great invention. It made it easier to lift heavy objects and could hold lots of stuff at the same time. The wheelbarrow was invented in China and helped with carrying the dead or bringing injured people to safety. It would also save money because it made it easier to … Continue reading Two cost-saving inventions
Lesson 30 The compass affected China and Europe in different ways because of their cultures and beliefs. The Chinese used the compass for designing and placing buildings and even tombs. Chinese people believed in the Chi or universal life force. Finding due North would maximize your Chi. Their enemy even dug up graves to lower … Continue reading The compass and how it affected China and Europe
I use simple machines every day. These are two of them. One of them is a wheel and axle. I scooter a lot and the wheels on my scooter are the most important part. The wheel and axle rotate together and are both joined in the centre. The deck on my scooter is over 2 … Continue reading Simple Machines in my Life
Sophie Neudorf 