Lesson 96: Compound Microscope Lesson 97: William Gilbert Lesson 98: The Newspaper Lesson 99: The Telescope Compound Microscope The compound microscope uses two lenses to make an image bigger. The bigger lens is nearest the object, and the smaller is the eyepiece. You multiply the magnification power of the first lens by the power of …
Author Archives: DJW
Fire & Tiger Salamanders!
Fire Salamanders Fire Salamanders get their name from people thinking that they had some sort of power and were able to live in fire. We know now that they were just in the wood, and didn’t want to get burned. Lives in Europe. Lives underground. Eats anything that fits into their mouths. Tiger Salamanders Get …
History lesson #95
Lesson 91: The Mercator Projection Map Lesson 92: Mercator Lesson 93: Tycho Brahe Lesson 94: The Backstaff The Mercator Projection Map/Mercator The Mercator Projection Map was a good tool for navigating the sea. Mercator also invented the first globe. Both of these were used when Portugal sailed the seas and discovered some new islands. Tycho …
My 1 Superpower!
English lesson #95-100 If I had one superpower, it would be… …to make an infinite amount of food go from my large hands, to my absolutely humongous plate, to my giant mouth. I eat the absolute MOST of my bros. (the middle one always tries to get out of eating, and the youngest just spreads …
History lesson #90: The Heliocentric Theory, Vesalius, âœï¸And The Pencil âœï¸
Lesson 86: The Heliocentric Theory Lesson 87: Copernicus Lesson 88: Vesalius Lesson 89: âœï¸The Pencil âœï¸ The Heliocentric Theory / Nicolaus Copernicus Nicolaus Copernicus invented the The Heliocentric Theory, and challenged Aristotle’s theory that the Earth is at the center of the universe. Now, into the theory that has been proved out of a theory …
The Difference Between A Common Snapping Turtle And An Alligator Snapping Turtle
Common Snapping Turtle Alligator Snapping Turtle Smooth Big ridges Extendable Neck Stationary Neck Swims Ambushes (more below) Not Endangered Endangered
History Lesson #75
The world around the time these tools were invented plays a crucial role in the history of those inventions. Let’s take a look. Before that time, an English man bought a piece of land from the french. That land was called Normandy. So the king of England was also Duke of Normandy. The English wanted …
History lesson: #70
Lesson 66: Spectacles Lesson 67: Mechanical Clocks Lesson 68: Paper Mills Lesson 69: Robert Grosseteste Eye Glasses (Spectacles) Glasses had a BIG impact on history. They allowed scholars to work later into their life. This boosted books production. There was no more fear of getting old. As time went on, until Teddy Roosevelt’s life, glasses …
History Lesson #65
Lesson 61: Buttons Lesson 62: Oil Painting Lesson 63: Cannons Lesson 64: Spinning Wheel Buttons Buttons were invented as a strap to replace pins and brooches. They were made of metal, but, in time, declined to plastic. They started a change in clothing, and became to the strap of the Blue Jeans invented by Levi …
History lesson #60
My Lessons For The Past Week Lesson 56: Trebuchet Lesson 57: Distilled Spirits Lesson 58: Vertical Windmill Lesson 59: Stern-Mounted Rudder Trebuchet The trebuchet is a missile launcher. It uses gravity or other force to launch. Here is how the trebuchet works: 1: men pull ropes or crank a pulley to make force pulling one …