Monday, December 16, 2013

Sir Isaac Newton

      Hey guys- this week we're talking about Sir Issac Newton. You may have heard of him before. He was an English Physicist, Astronomer,  Mathematician, and a Natural Philosopher.   

      Sir Isaac Newton was born in 1643 in the town of Woolsthorpe-by-Colsterworth on January 4th .(that's in England BTW) Before he was born, his father had passed away, and shortly after birth, his mum left him to marry some 63 year old guy..... Um that's kind of awkward. To make things worse, he was born so early, no body thought he would survive! Sort of like Liam Payne.. So after his mum left him, he was sent to live with his Maternal Grandmother. Fun Fun. Then when he was around the age of seventeen, his mother took him out of school to become a farmer!! But after a bit of convincing, the headmaster of the school persuaded his mother to let him go back to school.
      So long story short, he goes enrolled at the Trinity College at the University of Cambridge. He studied there for the next four years until it was shut down in 1665 because of the plague. So he goes home to study even more. that's where the famous apple comes in! Even though he wasn't actually hit in the head by the apple, he still saw it fall to the ground. As you all know, he figures out that the weird force that keeps us on the ground- GRAVITY!
sigh- not the MOVIE the actual thing!!
I am not going to go into all the details but after the discovery- he created a book. I'm not even going to try to spell it so im just going to give you the shortened version! : "The Principia" which is also the name of the college my mum went to.....
He then makes his now- famous Three Laws of Motion. they are:
1.  AN OBJECT AT REST WILL REMAIN AT REST UNLESS ACTED ON BY AN UNBALANCED FORCE. AN OBJECT IN MOTION WILL REMAIN IN MOTION WITH THE SAME SPEED AND THE SAME DIRECTION UNLESS ACTED UPON BY AN UNBALANCED FORCE.
2. ACCELERATION IS PRODUCED WHEN A FORCE ACTS ON A MASS. THE GREATER MASS, THE GREATER AMOUNT OF FORCE NEEDED.
3.  FOR EVERY ACTION, THERE IS AN EQUAL AND OPPOSITE RE-ACTION.
 So you may think he's pretty satisfied with himself to not make anymore discoveries or stuff- but NOOOO. he decided he wanted to make all of us in the present day and age suffer by creating calculus!!!! I mean really?!?!?!?!?!?!?

shame on you Newton!!!!
then after THAT- he goes and studies the properties of light. He refracts light through a prism to find out that white is made up of a wide array of colors. And eventually the album cover for Pink Floyd.

He then created a new kind of telescope- the reflecting telescope. that allowed the light to be in a much higher quality- because earlier telescopes had not been able to capture all light.
Not long after that- Newton received his Nighthood. he received it not for his science accomplishments- but as a reward for his work as the "Master of the Royal Mint" in London. He completely reformed the English currency adn punished counterfeiters severely.
THEN (yes he wins something else too...) he is elected president of the Royal Society in 1703. He was re-elected each year until he died in 1727.  When he died- he was the first scientist to be buried in Westminster Abbey. His laws are still used today and without them- who knows where we would be!!
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hey. like the new font?? hope you enjoyed this post. I had some fun making it. If you don't like it then
oh whale,


here are my links:
panorama thingy   
calculus gif
 

*special thanks to brain pop for the info!!!*





Sunday, December 8, 2013

Heat Transfer

hey guys! this week were talking about heat!!


no not that Heat! I'm a Hawks fan....
But on a more serious note, were talking about the other heat.

ya! that's the one!!!
heat is a big part of our life and is very important to us humans. As you (should) know, we are warm bodied creatures and operate properly when warm.
there are three ways to conduct heat. there is Conduction, Convection, and Radiation.

Conduction is transfer of heat through direct contact. In the picture above, the fire is heating up the pot, and the hear eventually travels up to the handle, therefore burning you.
Then there's Convection. Convection is the transfer of thermal energy by the movement of atoms or molecules from one part of a material to another.
think of it like this: you have a pot of boiling water over a stove. now the water at the bottom heats up, and since heat rises, it pushes down the cold water so it can heat up and thus the cycle of convection!As shown below.
and last but not least, there's radiation. Radiation occurs when energy is transferred by electromagnetic waves. So lets say you're sitting in front of a bonfire.  you can feel the heat right? That's because of Radiation. The heat waves are being tansferred from the fireplace to you!
 


 CONDUCTORS
 
*sigh* not that kind of conductor!! I'm talking about a conductor of heat you silly munchkins!
A conductor of heat is pretty much moves heat energy between two points.Have you ever wondered why a blanket keeps you warm? well the answer is simple: Blankets are insulators. it's job is to prevent the transfer of heat from one side of it through the other side. It can work for both heat and cold. if you wrap an ice block in a blanket, it will stay cold. foam, feathers, and fur are very poor conductors of heat. Why? Because they trap air, which is also a poor conductor of heat. They hold surfaces away from one another, so its stops Conduction.

here's a question- if you want to heat a room evenly, where should you place a heater- on the floor or near the ceiling? ill pause for a second to let ya'll think through it.

  jk i don't have a snack bar... i wish i did though!

Ok. if you said "on the floor!! that's common sense!!!!" then your correct!!!!! you see, heat and hot air rises. so if you placed the heater on a high shelf, you would be heating the ceiling. which would be great if you were eating on the ceiling with Mary Poppins!

before i leave ya'll, here are three weird, and completely random facts about heat. 
1. the flapping of 1,000 bees wings generates 7 watts of heat
2. The highest temperature ever recorded in the shade was 57.8C (136F) in Libya on September 13 1922.
3. The skin of a polar bear is black, which helps it to absorb more of the heat from the sun.
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hey guise- i hope you enjoyed my blog post this week. it was fun to make and i hope it was fun to read!! 
(special thanks to my cousin for helping me some with making it!!)

well i gtg. dont be sad though! and if you are than:
oh whale,



here are my links: (speaking of heat......)

Miami heat

the three c's

heat gif

train gif

                        intermission