Tech Blog Post: #9/Final 6th Grade Blog Post

It has been a great quarter. Having tech was so much fun! It might have even been my favorite quarterly. First, we leaned about adhesives, then mechanical engineering. For mechanical engineering, we ever built our own I-beam! Then, for simple machines, we built a catapult! Electricity was probably my favorite unit, though. We learned about atoms and how there electrons make electricity, and that fascinated me. Now with school ending, tech must come to an end.

It has been a great year. 6th grade has been one of the best experiences of my life. I came into middle school thinking it would be bad. I’m glad I was very wrong. The teachers were the best. They are not only some of the best teachers I have ever had, but also the best friends. Thank you, for a great year.

Tech Blog Post: #8

Today, I was making myself a soda using my SodaStream, a machine that carbonates water, when I thought, “How does this thing work?” Well, I decided to look into it. It turns out, the SodaStream machine uses a small tube to force carbon dioxide stored under pressure in a cylinder into a bottle of water, making it fizzy. The soda tasted even better after knowing how it was made.

Tech Blog Post: #7

Today, we learned about batteries. Batteries, also known as voltaic cells, use a chemical reaction called an oxidation reduction reaction to create electricity. Why do battery’s work, you might ask? Well, to stand this, we need to look to the past. The answer lies with scientists Galvani and Volta and a  dead frog. Legend says that, as Galvani was studying a frogs leg, he brushed one of its nerves, making the leg jerk. He called this animal  electricity, believing that a type of electricity was being stored in the frog. Volta disagreed, believing it was the metal itself that made the leg twitch. The arguing stopped with Volta’s experiment. He tested his idea with layers of zinc and copper, split in between by paper and/or cloth soaked in a saltwater mixture.

Tech Blog Post: #6

Today, we started the electricity unit. Today, we learned about atoms, how they make up everything, and particularly the scale of how small they are. If you had a grapefruit, to see all the atoms inside it, do you know how big you would need to make the grapefruit to see all the atoms? The size of the Earth! And once the grapefruit is the size of the Earth, the atoms would only be the size of a blueberry. Imagine everything you see being made up of blueberries! But we can go smaller. They atoms is made up of the electrons and the nucleus, but just how big is the nucleus? Well, to see it, we need to enlarge our atom to the size of a football stadium. Even the, the nucleus would only be the size of a marble. The nucleus is also made up of smaller things: protons and neutrons. Wait. If the nucleus is in the middle of the atom and the electrons on on the very edge(Which they are), what is in between then? The answer is nothing. Empty space. Consider your mind blown.

Tech Blog Post: #5

This week, we learned ever more about gears. It turns out, gears don’t only change the direction of the force, they also change the speed of the force and change torque. Torque is a twist to an object around a certain axis. Sadly, we needed to end the simple machine unit prematurely because school is closing early, so this is the last I will write about simple machines.

Tech: Blog Post #4

Today, I learned about another simple machine. However, only some people classify it as one. I am talking about the gear. The gears purpose is to change the direction on the force. There are three types of gears: a worm drive,  a spur gear, and a spiral bevel gear. Whenever a gear is used, the other gear it is attached to will always rotate an opposite direction. Gears have been used for thousands of years, the earliest being Antikythera Mechanism, which had over 30 gears and one of the earliest astronomical machines. In my opinion, the gear is just a gear and axle. Tomorrow, I will learn even more about gears!

Tech: Blog Post #3

This week in tech, we learned about simple machines. More specifically, levers. A simple machine is something that is used to redirect force and make work easier. We learned that a lever has a fulcrum, the effort, and the load. The fulcrum is the stabilizer of the lever, the effort is where the force is transferred, and the load is where the force is applied. For our project, we had to build a lever. I built a catapult. I was very happy how it turned out.

Tech: Blog Post #2

Last week in technology, we learned about trusses. They help stabilize structures. The thing that was very cool t me is the reason that all trusses are triangles. It is because a triangle is the strongest shape. I knew the triangle was the strongest shape, but I didn’t know why. Mr. Calvert put it like this. if he puts a weight a square, a parallelogram, and a triangle, all the object would distort, except the triangle(assuming that none of them can break and that the weight is balanced on the triangle). This is because the angles of the triangle are held in place by the opposite line segment. if this line segment does not break, the triangle will not distort.

Tech: Blog Post #1

Now with computer tech done, we move to tech! In tech, we learn about different pieces and types of technology. For my first post, I thought I would talk about my project I just finished.

For our first building project, we were supposed to create an I-beam. Before we begun, though, our tech teacher, Mr. Calvert, taught us how I-beams are so strong. The flange on the top has the most compression, while they flange on the bottom has the most tension. The center of the web, called the neutral axis, has zero resistance to tension or compression. I assume that the web is the the thing that transfers the stress.

This is what my I-beam looked like.

Computer Tech – Final Post

All good things have to end. I have just finished my quarterly on computer tech. Now I have normal tech. Over the time I had this quarterly, I learned and did many things. I had no idea a spreadsheet could do calculations. Perhaps what I liked most was the scratch game design project.

This was my favorite because of all the problem solving I had do, and when it was done, boy, did I feel good. I liked how the players could interacted with it and play the game. I have make games before, but this one is my favorite. You can play it here.

Overall, I really liked the computer tech quarterly, and now I think I am going to try and get back into scratch.