No, the Romans did, over 2000 years ago.
The sand and stone adds a binding quality to the cement making the concrete or plaster stronger than pure cement.
It is used so the cement can bond with another substance or else it will be to weak
Limestone is made up of calcium oxide which is the key ingredient to make cement. The limestone is mixed in with a particular clay to get the cement mixture.
The chief material in making cement is clinker, which is produced by heating a mixture of limestone and clay or other materials in a kiln at high temperatures. The resulting clinker is then finely ground with gypsum to produce cement. Other materials, such as fly ash or slag, can also be added to enhance specific properties of the cement. Overall, the primary ingredient is calcium oxide derived from limestone.
people these days in have learned technology about computers, and are making things with their technology.
Thomas Edison did not invent electricity. He invented means of making use of electricity.
Although there were many scientist who were competing to invent the first practical light bulb, it was Thomas Alva Edison who is credited with making them a household item.
he invented, (note: he didn't invent the light bulb he just improved it by making it last longer
Thomas Edison's light bulb was invented in 1879.Answer:Contrary to popular belief Edison did not invent the lightbulb. Several patents were issued for incandescent bulbs before Edison. The tie to Edison comes through Canadians Henry Woodward and a colleague Mathew Evans who patented their lightbulb in 1874. They were unsuccessful in their attempts to commercialize their invention. They sold their patent (U.S. Patent 0,181,613) to Thomas Edison in 1879.
Thomas Edison improved the design of the lightbulb. He patented a practical and commercially viable incandescent lightbulb in 1879, which played a major role in popularizing electric light and making it accessible for widespread use.
James Harrison did not invent refrigeration. However, he is credited with developing the first practical and commercial ice-making machine in 1854, which was a significant advancement in refrigeration technology.
Well, there's mixing the cement, making the cement, processing the cement, oh, and prostitution.
A. discover and invent are not the same discover means to find or uncover while invent means to make B. (Note: "Discover" and "invent" are verbs, not adjectives.) "Discovering" involves knowing about something that has existed beforehand, such as Marie Curie's discovery of radium. On the other hand, "inventing" refers to making something that has not existed before, like Edison's invention of the light bulb.
Cement has a number of uses. Making foundations, making floors or pads, anchoring in poles, making roadways, etc..
Actually, Thomas Edison thought of making the computer, but with the technology of his time he could not. But he did design the frame before he gave up on it. I am TheBoZZGamer and I'm 11!!
cement is made up of calcium silicateand alminate
He didn't. Michael Faraday invented the carbon arc lamp for outdoor use creating light from electricity. Thomas Alva Edison perfected the filament light bulb making it practical for indoor use.