Jeans Fire Sprinkler QWERTY Keyboard Dental Drill Jeans If you were an 1800’s railroad worker, you would not want your pants to tear on the job, even if they didn’t tear down the back. So the need for stronger pants arose. Jacob Davis invented riveted blue jeans to meet this need. However, he could not …
Category Archives: Grade 5
My Favorite Kind of Animal
My favorite species of animal is a cat. Kitties are small and cute and fuzzy and fun. They like to sleep in your bed and don’t poop all over the yard. They do really cute things like ring the dog bell to be let outside when they know they can’t go. They sometimes cover their …
History Lesson #110
Clothes Hanger Rotary Can Opener Mail Order Catalog Earmuffs Clothes Hanger Until the 1800’s, clothes were always stored in chests or drawers. O.A. North invented the clothes hanger in 1869 to store clothes without getting them wrinkled. Clothes can be stored in small spaces without being wrinkled. There is not much space in an apartment …
Camera Focus
Here is what I learned about focus: focus is weather your image is sharp or blurry. A sharp subject would be an in-focus subject. A blurry subject is an out-of-focus subject. You can use your aperture to control depth of field, which is how much of your background and foreground are in focus. If you …
History Lesson #105
Air break Traffic Light Tape Measure Pipe Wrench Air break George Westinghouse Sr. was the father of the famous George Westinghouse Jr. Westinghouse Sr. owned some machine shops, in which George learned. Westinghouse Jr. grew up as a good businessman. One day, he experienced a train wreck because the brakemen couldn’t turn on the individual brakes …
The Funniest Thing I Can Remember That Happened To Me
The funniest thing that I can remember was in August, 2016, when went to the State Fair and got giant strawberry ice cream cones. They were might have been a foot tall! They were super delicious. We thought they would be smaller, but we were delighted (and the grown-ups surprised) when they were that big. So …
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History Lesson #95
91. Roller Skates 94. Pasteurization Old West Background 92. Barbed Wire 93. Cowboy Hat My Favorite Invention This Week Lesson #91: Roller Skates James Plimpton invented the roller skate in 1863, during the Civil War. Once the war ended in 1865, Plimpton began to advertise his roller skate as a way to relax after the …
History Lesson #90
Postcard Gatling Gun Linoleum Ratcheting Wrench Postcard The postage stamp reformed the UK postage system in the 1840’s, and this paved the way for the postcard. The printing press was also to play a role in the postcard’s invention. The postcard was invented by Hyman Lipman, inventor of the pencil eraser, and John Charlton. It …
Soyuz Spacecraft
The Soyuz rocket is a rocket that is used to get to and from the international space station (ISS). It is a Russian craft, and interesting too. You can read more below. The Soyuz has 3 stages. The outer rocket boosters that fire with the central core, the central core, and the 3rd stage. The …
History Lesson #85
Ironing Board Internal Combustion Engine Lever-Action Repeating Rifle Twist Drill Ironing Board Before the ironing board, in some countries, a pan full of hot coals was used for ironing. The kitchen table was used to iron on, but this could leave burns on the table, and was not as practical. But then, along came the …