The thermometer was known to be significant because it was the first time that humans actually got hold of reading specific temperatures. The thermometer is also commonly used in various different situations. It's used to measure the heat/cold outside, the temperature of food, a human's temperature, and used to measure in science experiments. Those are simply a few examples. Hope this helped :))
A dictator is a ruler who came to power forcefully and ruled over a country without consulting the people. In Roman republic, they might have come to power in a crisis because you are forced to follow a dictator you are not given any other opportunity.
1) Fulton's Folly: It was a steamboat by Robert Fulton. He did not invent it as some credited him for, but he was the first to make a commercial success out of it. The boat carried paying passengers from New York up to Albany.
2) Tom Thumb: The Tom Thumb was a steam locomotive that was used to showcase the American potential to create engine to Baltimore and Ohio Railroad.
3) The airplane: The airplane was a success, it was first used in WWI for combat, later people started to use it to transport mail. In WWII it was used as a mode of transportation. Later it was transformed as a common way of transport for all the people.
4) The Model T: The Model T was a car that was produced by Ford Motors. It was very common because it’s price and because of this middle-class Americans were able to buy it and use it was a way of transport.
What charterictics does it list