Plastics (or synthetic polymers) were first introduced back in the 19th century when they were trying to find an alternative to Ivory; ivory is also used in billiard balls (or pool balls in the US) Ivory was more commonly made using Elephant tusks, and was used in the making of small sculpted works of art,…
Tag: History
Mustard
I watch a youtube channel called Mustard. Mustard is a channel that makes history videos about different inventions. In most of the videos I watched, he talked about aircraft. for example, in the most recent one, he explained the history of giant flying boats. It is called: what happened to giant flying ships? That video…
Benefits of a Roman Aqueduct – History of Inventions – Lesson 27
Rome borrowed the idea of the aqueduct from the Etruscans and the Greeks, but the Romans perfected the idea. They perfected it by bringing lots of fresh clean, and consistent water to the city, it also benefited the sewage system because the aqueduct provided consistent water to flush the gross stuff out of the city,…
What Roman Aqueducts Are – History of Inventions – Lesson 27
An aqueduct is a man-made channel that lets the water flow into the big cites. We use running water daily, and for an example, your shower will have running water when you turn it on or when you are using your faucet to wash your hands or to clean the dishes. The Romans didn’t invent…
How Roman Bridges Were Built – History of Inventions – Lesson 26
Romans loved the shape of a circle because they thought the shape of a circle is the perfect shape. That is where the Romans got the inspiration for arches. The Romans got the love of the shape of a circle from the greeks who thought the circle was also a perfect shape next to a…
Before Roman Bridges – History of Inventions – Lesson 26
Going across terrain is hard, but it is even harder for the Romans because they would build straight roads across the landscape. They would run into a lot of streams, rivers, canyons, etc. and therefore needed to build bridges. With bridges, it is a lot easier to cross over obstacles. Bridges would mean that Rome…
Castle Pop-up Book
About a week ago, we bought a castle pop-up book from Goodwill. It has a page explaining a short story about the castle and the different places in the castle. When you flip to the next page, the castle pops out, and you can see all of the different areas in a castle. Here are…
Three Different Types of Roman Roads – History of Inventions – Lesson 24
There were three different types of Roman roads: Private roads which were for Romans who could afford their own private roads. Public (high) roads which were paid for by the government to transport armies or government from one place to the other Branch Roads were roads that branched off of the private roads, and the…
Why Roman Roads Last So Long – History of Inventions – Lesson 24
Roman Roads have outlasted modern type roads because the Romans made their roads from harder materials than the modern car roads. They were built with slabs of stone instead of crushed stones, sand, and slag
WaterWheels in Egypt – History of inventions – Lesson 17
WaterWheels have been used to power mills, saws, sifting flour, and for hammering stuff. The Egyptians used it for transporting water from river to land. When the Nile river was full, without the water wheel, they would have to move it by hand, but with the waterwheel, it was more accessible because it would move the…