This week I learned about the Electron Microscope, FM Radio, Nuclear Fission, and the Transistor.
The Electron Microscope is a microscope that uses electrons to magnify the thing a person is looking at. The Electron Microscope is a much stronger microscope than the optical microscope. The Electron Microscope is very useful because one can look at things that one can not see with the naked eye, such as viruses which have helped make many scientific discoveries.
FM Radio stands for frequency modulation and it is a type of radio wave. FM Radio is not affected by other sources which cause static as much as AM Radio. A FM Radio is harder to build than an AM radio but the sound has a better quality and the signal can go just as far as an AM Radio signal for less power. FM Radio changed history because one can listen to tons of different types of music in high quality.
Nuclear Fission is the process of splitting an atom. The atom can be split by blasting a neutron at the atom’s nucleus which causes it to explode. Nuclear Fission impacted history because we can get a lot of power from Nuclear Fission which can be used to power cities.
The Transistors are very small and can amplify things very well. They can also be used as an electrical switch and are used in logic gates to do logical operations on computers. The Transistor changed history because it is the base of electronics. They are used in computers, iphones, tablets and pretty muchly any electronic device invented.
So to wrap it up, my favorite invention this week is FM Radio because I love to listen to music and it sometimes helps me focus with my school.
Becca's Big Life 