The rotary printing press: it is a printer that is used for newspapers. It holds an ink spot like a normal printer, but the newspaper printer is 6 times bigger than normal. The prepose of this invention is it prints over 1 million newspapers a day.
Kerosene: It is a fuel for jets like national airplanes and even private jets. For a big airplane to take off which kerosene is used for. It was made in 1859. The founder is Abraham Gesner. Now most people might be wondering what if I use it for my car? Well, you can but you also can’t. It is illegal for any vehicle to use kerosene except for airplanes. If you use a car the fuel is so powerful it would just blow up your car depending on how much you put in. It will not become a rocket car. Now there was one time when scientists tried kerosene on a space rocket, but it didn’t go so well. The rocket ship started to catch on fire from the radiation of the gas and between the sun. So don’t use kerosene for any vehicle that’s not an airplane.
The gasmask: it is used for gases to protect your lungs and if you don’t wear it when using gases, you’re putting your life on the line. It is mainly used for people at work or house construction. When it is weared the gases you will breathe in will be detoxicated even though it is after you breath it’s still harmful so most of the time you shouldn’t be near so many gases.
Lesson Learning 