Can we all agree that most physicists are a little bit crazy?
Well, in Isaac Newton's case, he wiated almost twenty years to publish his results from an experiment where he had formulated and numerically checked the gravitation law. His original conclusion was formulated by 1666, but wasn't published until s1687 in his book Principia for the pure reason that he could not justify his method of numerical calculation in which he considered Earth and the moon as point masses.
So, not only did Newton wait twenty years or so to publish his results, he also invented a type of calculus-based mathematics in order to solve his calculation problem.
Concluding, Newton's Law of Universal Gravitation states that:
Each mass particle attracts every other particle in the universe with a force that varies directly as the product of the two masses and inversly as the square of the distance between them. In equation form this looks like:
F=-G[(mM)/r^2]e_r.
What other equation have you seen that looks similar to this but applies to point charges?
Sunday, October 30, 2011
Friday, October 21, 2011
Thursday, October 20, 2011
Calculus Anyone?
How do you feel about using a TI-89 calculator?
Are you aware of all of the functions your calculator has?
Well, follow this link below and take a look. The video more describes calculus than the functionality of your calculator, but it is fantastic.
What is one thing that you know about calculus? (Not how you feel about it, but the actual content matter in the course.)
Thursday, October 13, 2011
Keys to Success in Phys 100
Ever wonder what it takes, I mean what it truly takes to be a successful student?
Well, we all want to get straight A's and be on the President's List every semester through the easiest route possible.
I find that the best thing that works for me is making a schedule and writing down each task that I need to accomplish accompanied by the due date. Doing this, allows me to do my best to make sure that all of my homework gets done on time.
What is something that will help you to be a successful student?
Wednesday, October 5, 2011
Is this Real?
As all of you know, YouTube.com can be a very addicting web site, can't it? Have you ever browed the videos of kittens? They are hilarious and guarantee to make your day better.
Below, is the link to a unique video that demonstrates a physics phenomena. I want you to take a look at this video and see if it is real. Can you find any trick photography using the skills you may have learned in film class? Is this really possible?
A few sidenotes:
-There is no sound to the video, so if you can't here anything then it is the correct one.
-The liquid they pour on top is, I believe, liquid nitrogen.
Sunday, October 2, 2011
ARCHIMEDES' PRINCIPLE
ARCHIMEDES' PRINCIPLE
Students of physics are frequently told
Of experiments performed by great physicists of old
Like Boyles and Charles -- but greatest of these
Was the Principle discovered by Archimedes.
The Sicilian King, Archimedes was told,
Ordered a crown from a large lump of gold,
And though the weight of the gold was completely correct,
The goldsmith's eye made the King suspect
That he'd made up the weight with some cheaper metal
And stolen some gold, that his debts he might settle.
His problem was then of outstanding immensity
As he had no idea, whatsoever, of density.
Climbing into a bath he received a surprise
When he noticed the water beginning to rise.
He suddenly snapped, and let out a scream,
As he realised, with joy, his long-wished-for dream.
He found the upthrust, produced on a body's base*,
To be equal in weight to the water displaced,
And soon volumes and weights would make it quite plain
What various metals the crown could contain,
And so he could easily show to his Royalty
The absolute proof of the goldsmith's disloyalty.
Leaping out of the bath at remarkable rate,
He made for the palace by doorway and gate --
But the men in the street were completely confounded
To see a naked man shout "Eureka! I've found it!"
http://jcdverha.home.xs4all.nl/scijokes/2_1.html#subindex
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