Graham. Like the Graham cracker? No. Don’t worry. We’re not talking about the cracker. We’re talking about Alexander Graham Bell and the telephone!
You probably heard of the telephone. It’s the thing you call someone with. And Alexander Graham Bell invented it! Technically, he’s one of the inventors. Buttttt, whatever.
The actual definition of a telephone is “a telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly,” states Wikipedia.
The purpose of the telephone was to convert sound, typically and most efficiently, the human voice, into electric signals that are transmitted, via cables and other communication channels to another telephone which reproduces the sound to the receiving user.
The invention of the telephone provided an important device for facilitating human communication. Now, no one needs to be side-by-side to actually talk to each other!
In 1880, it cost $9 to buy a telephone. That may not sound like a lot, but that was a lot back then, considering most people make $2-6 a week! I guess telephones are really important to cost that much!
The telephone in 1880. Looks pretty old fashioned to me.
Some people think Nikola Tesla invented the neon sign. But it’s really Georges Claude who invented it. (And yes, his name is spelled Georges, not George.)
Did Nikola Tesla invent the Tesla, then? Nope. That’s a different person. Then what did he invent? Well, he invented the neon lamp!
A neon lamp is a miniature gas discharge lamp. Simple as that.
How does a neon lamp work? “Neon lighting consists of brightly glowing, electrified glass tubes or bulbs that contain rarefied (thin) neon or other gases.” says Wikipedia.
Or, in simpler terms, a neon lamp is a light bulb that can make many colors when Noble gasses are inside of the bulb.
Fun Fact: Neon signs are made out of neon lamps! Pretty cool, right?
The neon lamp itself. Not too shabby.
Benjamin Franklin. A Founding Father of the USA. You probably heard of him. He’s famous! If you haven’t heard of him, well, I’ll… I’ll… I don’t know what I’ll do!
But, today we’re not gonna talk about him. We’re gonna talk about the Bifocals.
“Bifocals are eyeglasses with two distinct optical powers. Bifocals are commonly prescribed to people with farsightedness.” states Wikipedia.
Bifocals are glasses.
Benjamin Franklin used his own invention, too.
Bifocals are commonly prescribed to people with presbyopia, which means farsightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age. Presbyopia was a condition Benjamin Franklin suffered.
But the Bifocals weren’t perfect.
Bifocals can cause headaches and even dizziness to some users. It could take a few weeks to adjust to the Bifocal glasses, and the Bifocal line could be too high.
Bifocals. It looks like something an old lady would wear. (No offense to old ladies reading this.)
But I guess nobody can make a perfect invention.
An anode is where the electrons leave, and the cathode is where the electrons come in.
If you don’t understand this, neither do I, so don’t worry.Thomas Edison! We all know him!
Or do you?
But what is a vacuum diode? How do you even pronounce that? Well, thanks to Google, just look it up.
It’s pronounced dai-owd.
So, what even is a vacuum diode, anyway? “A diode is an electronic component with two electrodes (connectors) that allows electricity to go through it in one direction and not the other direction.” states kiddle.co.
The anode is where the electrons leave, and the cathode is where the electrons enter the diode. If you don’t understand, neither do I, so don’t worry.
Although the vacuum tube was invented by John Ambrose Fleming, Thomas Edison was the one who later discovered the “Edison effect,” which says that electricity doesn’t definitely need a solid material to move through! It can move through gas or vacuums, too! Without this realization, vacuum tubes would never have been invented! Pretty awesome, right?
The Great Albert Einstein… in a cartoon
Ah! Yes. Albert Einstein. The famous scientist and mathematician who’s last name I can never spell correctly! Yes. Today, I’m going to teach you about Albert Einstein. But not about him. I’m going to talk about his refrigerator.
What?! Albert Einstein invented a refrigerator! Yes. Why yes he did.
The Einstein–Szilard, or Einstein refrigerator is an absorption refrigerator that has no moving parts, operates at constant pressure, and requires only a heat source to operate. Pretty cool, right?
Did you know? Albert Einstein was fascinated by what happened to a Berlin family who had been killed when a seal in their refrigerator failed and leaked toxic fumes into their home. Pretty strange reason to get fascinated, am I right? (But no one came blame Einstein. He changed our lives!)
Einstein’s refrigerator was patented in the 1930s and doesn’t use greenhouse gases and can be used without electricity! Do we still use it now? I have no idea!
Isaac Newton Himself
Calculus. You might’ve heard it from someone, you might know it as some kind of math, but you might not know that Newton discovered it!
Many people know Isaac Newton for his discovery about his three law’s of motion, but he also invented calculus! I bet you didn’t know that! It impacted the world when he invented calculus in 1665. We take this for granted nowadays, but what Newton did hundreds of years ago is astonishing, considering now, many people take ages to learn it!
Calculus has uses in physics, chemistry, biology, economics, pure mathematics, all branches of engineering and much more!
Newton’s focus on gravity and laws of motion are linked to his breakthrough in calculus. Newton started by trying to recount the speed of a falling object. When he did, Newton found out that the rate of a falling object increases every second, but there was no currently existing mathematical explanation for this!
Newton immediately started working on this, and he figured out that when using calculus, he could explain it! So this is how Isaac Newton discovered calculus.
Okay. So who is this Ohm guy? His full name is Georg Ohm. (And yes. It’s spelled Georg. That’s not a typo. He has such a strange spelling name in my opinion. No offense Ohm!)
He was born on March 16, 1789, in the university town of Erlangen, Bavaria. His little brother, Martin Ohm, also became a famous mathematician! Johann Wolfgang Ohm, his father, was a locksmith. Maria Elizabeth Beck, his mother, was a daughter of a tailor. She died when Georg was ten.
“Ohm’s Law states that the current passing through a conductor is proportional to the voltage over the resistance,” says ducksters.com.
This may sound very confusing. I’m a little bit confused myself! But it can be written in a simple formula: I = V/R. I is currents in amps. V is voltage in volts. And R is resistance in ohms.
Voltage divided by current is resistance. Resistance times current equals voltage. Just like math. I don’t like math.
Hey! Ohm is not a thing. He’s a person! But an ohm CAN be defined as “an electrical resistance between two points of a conductor,” as said by Wikipedia.
So I guess when you say “ohm”, it could mean a person or a thing! Kinda like a noun. Haha.
Yes. Atoms. But what are atoms? Well, they make up everything! They’re made up of 3 teeny weeny particles: the proton, the neutron, and the electron.
The biggest idea from all time, is that stuff, is made, from atoms.
When the theory was proposed, it sounded absolutely insane! Nobody believed it! Now, nobody would run around shouting “Atoms are just a theory!” But not so long ago, people did do that. And you wanna know who settled it for good? Einstein.
Yes. The amazing scientist and mathematician. Of course it’s Einstein. Atoms had been theorized for a long time by the 20th century, but only when Einstein proved its existence in 1905 with amazing math skills (which I will never have), is when the matter was really settled.
Here’s the story about how the ancient Einstein found out about atoms. But it first started with a botanist.
In 1827, a botanist named Robert Brown was looking at pollen grains in water through a microscope and he noticed that they moved around even when there was no movement in the water to cause it! It was a mystery that lasted a really long time.
Until… In 1905, when Einstein theorized that this incident was caused by as to-be-proven atomic particles actually hitting into the grains of pollen. He wrote some fancy complicated math equation, proving that his theory predicted this motion almost perfectly, so everyone had to agree that yes, tiny bits of matter were really smacking into the pollen, and so atoms, had to exist.
Yes, a very interesting story indeed. I wonder how complicated Einstein’s math equation really was.
I-Beams. When you first hear it, you might think, “Oh, it’s a beam that’s shaped like an I!” Well, you are correct! I-Beams are used in many places. I-Beams are used in the structural steel construction industry. They are often used as the main support for trusses.
(Trusses means triangles.)
For our project this week, we’re supposed to make 2 beams: One of them is an I-Beam, and the other one is a beam of our own design.
On 9/23, I built my 2 I-Beams. One of them was longer, and the other one was shorter. I made both of them in the Zoom for extra help. (At the Zoom, I was eating my lunch, dumplings, but the teacher couldn’t see me. Tee-hee! But later, my longer one broke. Whoops.)
The second part of the project was to film a Flipgrid (an app) video, and you’re supposed to show you testing your beam.
My I-Beam withstood eight pounds before it collapsed. Pretty good, if I do say so myself. 🙂
I think that this project was super fun. You know, I actually made another beam to use as my main beam because my main beam was too short.
The first day of actually going to Scarsdale Middle School in person was really intimidating. I was so nervous when my mom dropped me off. She said: Don’t worry! You’ll be okay. Everyone is nervous on their first day. I knew that, but still, I was scared. But who isn’t? It’s a big transition from elementary school to middle school. The building is bigger, there’s more classes, more teachers, and most importantly, more homework. (This is what I’m most afraid of.)
I walk into the doorway on the upper circle, and ask a lot of teachers for help to find my homeroom. Finally, I get to my homeroom/science room. Dr. Williams was at his desk, and some other people were already there.
“Go to a desk with an iPad case on it.” Dr. Williams said, so I sat at the front row. How do I put on my iPad case? I wondered while awkwardly putting some of my things on my desk. I awkwardly looked around at all the people around. Wow, there are so many boys! How am I gonna survive?
Soon, class started. Dr. Williams introduced everyone, he helped me with putting on my iPad case (he said his thumbs are still sore from putting on the case), and I really enjoyed the class.
Next, we had technology. It was really interesting! Mr. Calvert talked about the Dee Bridge Incident, the 1986 Challenger Explosion, the Titanic, and how they all had the incident not because of the design, but because the choice of material.
Social Studies was a bit different. Ms. Castiello was zooming in from Zoom. It was a little bit echo-y because we also joined the Zoom from our iPads, but it was a really good class!
At the end of the day, I was so sad that I had to go home! School was already over! So sad 😥. (Yes, yes. I know. I enjoy school. Don’t judge. Humph.) I saw some of my friends while waiting for my mom to pick me up. We talked a little, but then my mom called me and I left.