1655
"The phenakistoscope or magic disc...was originally invented by Dr. Roget, and improved by M. Plateau
it was made by humphry davy, then Joseph Swan improved and then Thomas Edison improved it
An example of a sentence with the word projection in it would be, It is important to practice voice projection if you want act on stage.
happiness
Improved Pascaline was invented by Leibniz.
By robinso0n
1655
steam engines were improved
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by me
the answer is "Gerardus Mercator"
he invented the scuba. He also improved the aqualung.
Thomas Edison but it was improved.
1996
John Standard was an African American inventor. In 1891, he invented the improved refrigerator design. He also invented an improved oil stove.
Composting is a natural process. Methods may have improved but no one invented it.