How Do People Find Atoms?

How Do People Find Atoms?

Recently in class (Somewhere around May 15), we were learning about atoms. We watched a BrainPop video and we had to write 3 things I found out, 2 interesting things I found about atoms, and 1 question. My question was how do people find atoms? I used some links to find an answer to my question:

*Motherboard(https://motherboard.vice.com/en_us/article/8qxe7z/this-microscope-can-see-down-to-individual-atoms)

*HowStuffWorks (https://science.howstuffworks.com/atom10.htm)

*BrainPop (https://www.brainpop.com/science/matterandchemistry/atoms/)

The 3 thinks I found out was: Democritus called atoms atoms from the greek word atomos. I also heard that atoms are made of protons, neutrons and electrons. Neutrons have no electrical charges, while protons have positive electrical charge, and the periodic table of elements; all the items/things displayed on there are all made of atoms!

There were 2 things I found interesting: The density of nucleus is the size of 6.2 billion cars. I also wrote that the center of atoms were made out of protons, neutrons and electrons. The nucleus is stuck together by strong forces.

Atoms are very small things (smaller than dust) that are found almost everywhere! It’s impossible to see an atom with a light microscope, but in 1981, somebody invented something called a scanning tunneling microscope. You can also call it STM. Using a scanning tunneling microscope, it’s now possible to see atoms.

Soon after that, in the UK, SuperSTEM Facility made an electron microscope. Just like the scanning tunneling microscope, you can also see atoms; you can also see atomic columns (A photo of atomic columns ^^^ go up). You can see them because the electron microscope uses beams of electrons instead of photons. Photons have a longer wavelength than electrons, which means electrons have short wavelengths. Therefore it’s more useful to use electrons. You can see closer and zoom into stuff more than before.

Science in the 20th century showed the structure of an atom. They found out that the structure of the nucleus and the forces hold the atom together.

People and scientists from around the world are also trying to find another way to be able to spot maybe smaller things than atoms.

Writing ~ Home Learning

For home learning, I chose to inquire onto wheels. I decided to write about wheels because i think it made a big impact on everyone’s lives; convenient, it helped invent pottery, etc. I used many different sources to find my info like:

*Wikipedia (https://en.wikipedia.org/wiki/Wheel)

*Smithsonian (https://www.smithsonianmag.com/science-nature/a-salute-to-the-wheel-31805121/)

*Ancient Origins (http://www.ancient-origins.net/ancient-technology/revolutionary-invention-wheel-001713)  

*autoevolution (https://www.autoevolution.com/news/history-of-the-wheel-7334.html)

I found out that the wheel originated from Mesopotamia, and it was made in the Roman Empire (3500 BC). People didn’t have as good materials as they do now so the wheels were made out of wood, stone, and a little bit of metal.

There are many positives of the old wheel, and the new wheel. I decided to write about the old wheel since there are many differences between them. I wrote that it works, it helped invent pottery (Pottery wheel), and it inspired people to create fun things like ferris wheels. It also helped invent fun things for pets like hamster wheels!

There are not many negatives of the old wheel. I couldn’t find or think of anything else, so I wrote that it could cause deforestation (Because of cutting down trees and most vehicles need 4/2 wheels.) and relating to that, it would waste some materials.

The first vehicle was a chariot. In 3500 BC, the wheel wasn’t used like regular wheels like how we use them today. They were first served as a potter’s wheel (Pottery). In 3200 BC, people finally got the idea to use the wheel to transport people around the place. They were used by the army for hunting, and racing, and of course transportation. The people that were involved was the army, the Europeans (They are one of the first to make the wheel), the Egyptians (They were also one of the first to make the wheel).

The wheel helped inspire people and inventors to make something more of the wheel, like ferris wheels and water wheels. It helps many people in many ways and makes our lives even easier.