Issac Newton

Hello, I am going to talk about Isaac Newton. Have you ever heard about him? If you haven't it will appear a lot in the future. Actually, you will learn about him during school. So, who is he? He is a gifted person in my opinion. He worked in science and math. Actually, he was great in science and math. He had made calculus, you know..
Isaac Newton

 However, he has a sad story in his past. He was born in 1643, 1/4 at Woolsthorpe in England. He was born so small that nobody had expected him to stay alive. Newton's dad died three months before he was born, and I know it is sad because he couldn't see his son being called "The Father of Physics." Well, after Newton was born, mom had married the old guy, and Newton was sent to his grandmother. It is quite sad.. Actually, he almost become a farmer, but his uncle had convinced Isaac Newton's mother to let him go to Cambridge University.
 If I tell you about Newton's discovery through his life, even though he had a hard time in the past, he had worked in many things.
cambidge university
The first thing is that he had made CALCULUS. Calculus is the part of math learning in upper level. It is used to get the area of the irregular shapes like oval or something like that.
The second thing he discovered is about the light. In the past, people had never thought that the white light is compound of red, orange, yellow, green, blue, navy, and violet. (In the future, optics and motions are discovered)  Also, he discovered that the light is made up of the particles.
The third thing he discovered and defined is the laws of gravity.
The fourth thing is that he defines  planetary motion.
The fifth thing is that he defines three laws of motion. This describes that how all the universe act. This also explain how the gravitational force works. You know, Earth pulling the moon, and everything in the universe..
The last is an invention. He invented a better telescope, a reflecting telescope. This telescope was using concave mirrors instead of lenses. This helped to look the object without loosing the original object's color.
prism
 You know what? He had been other things other than a person sitting and defining things. He was a professor of mathmatics, Member of the Royal Society (He was president each year until his death), he was also knighted by the Queen Anne for his contribution, which led him to award a knighthood for scientific achievement. The most shocking thing is that he was really religious. You know, it is extremely rare to see a great scientist to be a deeply religious person because those spirits are hard to relate with science, but Isaac Newton was different, he was religious.
 Oh! Did I tell you that he attended Cambridge University but had to go back to Woolsthorpe where he was born, and than had to come back to University 2 years later? There were bubonic plague through London, killing huge number of people. That made Cambridge school to close, and made him go back. Actually, returning to his house was a good thing. The year he was working at home is called "Miracle Year" now. He had figured out laws of motion, forces and gravity/ discovery of light and optics/inventing a new branch of math Calculus. These things happened this time between 1655-1667. Surprising right?
westminster abbey
 Newton died in 1727. He was buried in Westminster Abbey, and he was the first scientist to be awarded this high.
 So have you learn many things here? I hope you did, but if you think you need to learn more about it, click here!

Heat

Hello, I am back! Today I will talk about HEAT!!
HEAT? What is that? Heat is the transfer of thermal energy from one object to another when two objects are brought into contact depends on the difference in temperature between the objects.
You know what? You cannot survive without heat. Actually, none of the creatures can. Plants need heat to photosynthesis, animals need plants to survive, and us people need animal and plants to survive. Not only because we don't have food, we will die to freeze. There is a movie called "Tomorrow". The movie shows the people die from cold, I mean extremely cold. I recommend this movie!
 There are three ways of heat to be transferred. It is convection, condensation and radiation.
AC/HEATER
First, convection is the transfer of the thermal energy by the movement of atoms or molecules from one part of material to another. It is when the air or water become heated and rise up, the cold air or water falls back down where the heated air or water started from. If the cold air or water heats up again, it rises up and make the cycle. In real life, you can see convection when your mom boils the liquid to make food, or heating vent in the room can occur it. Did you ever wonder why air conditioner is high up near the ceiling and heating vent is at the bottom? It is because convection happens. If the air conditioner is at the bottom where heating vent is, the cold air won't rise up and try to stay on the bottom, and cycle won't work. Same reason as air conditioner, if heating vent is up in the room, where air conditioner is, hot air will try to stay up in the room. Oh, you know that convection occurs only with liquids or gas. What about solid? When the heat transfer occurs with solid, it is called conduction.
 Marshmallow conduction
Conduction is transfer of thermal energy by direct contact. Not like convection, conduction occurs when the object is attached to the other object. For example, if you have a marshmallow and want to eat with the fire melting marshmallow, you have to stick the marshmallow on the stick and put directly in the fire. But!! if you feel that the stick is hot, you are holding a metal stick. The heat from the fire continuously heats up the the stick and the heat stretches out until where your hand is. So the heat from the fire touching the metal stick is called conduction. You might have not experienced burning your hand by melting marshmallow, and why is that? To be honest, market never sell metal stick for marshmallow so you don't  burn yourself. I don't really know what substance it is, but there are some that conduction doesn't happens easily. The substance is plastic, feather, and fur. They are poor conductors of heat, and the reason is because of the molecules' formation. Metals have uniformed closed molecules but the other substances I mentioned are having strip like arrangement. So the distance the heat can transfer is so far, and that is why.
 RADIATION
The last, radiation is transfer of thermal energy without any object. The best example is the sun. Sun can heat up the house, but isn't it curious how it works without air or any object between? Radiation is the only way that it can transfer heat without any help. Not only the sun, but people also can have radiation to others since people also have heat inside, but it is just weak because the object that makes a heat which is us, doesn't have strong heat inside. 
 Do you know how the blanket keeps you warm? I am pretty sure you will wrap around the blanket to make yourself warm. Okay, so blanket doesn't make up heat. They only slow down the movement of the heat or they just prevents the heat. And that is how it works. Pretty simple right?
 POP QUESTION! What will have more heat inside, the metal stick in the fire or glacier? Answer is at the bottom!





GLACIER






The answer is glacier! You are surprised aren't you? The stick in the fire is much smaller that glacier, which means they hold different amount of heat inside. Since glacier has more molecules, it is hotter, but it just doesn't show it is hot because it is so big. Stick shows out it is hot because it is small. 
 Done! Interesting isn't it?? I hope you enjoyed.

Sleeping Brains Take a Bath (Current Event)

 Hi! I’m back. I haven’t post anything for while. Sorry!
Today, I am going to talk about interesting article. I went on the website called student science. I actually had posted once before, but if you want to visit, go on to the website Science Current Event. Press it!

The topic I chose is called, “Sleeping Brains Take a Bath.”

It is about what it exactly says on the title. Sleeping brain take a bath. Chiara Cirelli is a researcher at the University of Wisconsin-Madison. She had an experiment with a mouse named Lulu. She had taken care of the mouse to have a good condition to sleep and good condition to have activities. Her effort was successful. Mouse had slept when she had made a good condition to sleep even it was the afternoon. She found out when mouse was asleep, the fluid floodgate had got opened, and when the fluid went through the brain cells, it washed away cellular litter. The garbage thing they are talking about is made up in the brain cell while animal is awake. When an animal is asleep, the fluid flows well. But when the animal is not in a deep sleep, the faucet like floodgate swells and lessen the fluid. The junk builds up in the brain while animal is awake. This junk is not good. This is related to Alzheimer disease. So it is not good.
 I think this article wants to tell you that sleeping helps not only your tiring but also it helps your brains functions well. 
 This is the end of the post today. It is kind of short but it has good contents! Thank you, Ill be back next week!