The FULL slinky drop story!

Enjoy! http://arxiv.org/PS_cache/arxiv/pdf/1110/1110.4368v1.pdf

Proof Techniques

Unfortunately, in order for something to be generally accepted as fact it must be proven, meaning that it must be shown to be true for all cases. However, the most commonly used ways for proving things are usually inadequate, being that they rely on the truth instead of more convenient techniques. For the sake of simplicity, here are a couple of more practical methods to prove things.

Proof by Blatent Assertion:

Use words and phrases like "clearely", "obviously" and "as any fool can plainly see..."

Proof by Intimidation:

This can be useful for physical as well as abstract assertions. For example, "you better believe this if you know what's good for you" is a good argument if you are in a position to use your suppior strength to subdue your opponent, like a younger sibling or small animal...

Proof by Interuption:

Just keep interrupting until your opponenet gives up.

Proof by Misconception:

An example of this is "2 equals 3 for very large values of 2". Once introduced, any conclusion is reachable.

Proof by Confusion:

Your argument should be arranged into ciruclar patterns of reasoning. If your feeling creative, try to arrange it in more complex patterns, such as figure 8's.

If used correctly, you should find it incredibly easy to raise and defend any statement you wish. Can you think of any different types of proofs that I might not have stated? Also, can you add to or revise any of the proofs listed?

http://www.jyi.org/resources/humor/proofs.html

Flying Deer

An occurrence which seems to be happening at many runways across the United States both commercial and private. No, it is not reindeer taking off and landing but deer being stuck by airplanes. This seems to be an issue happening around the country and I would like to know why?


In 2009 at the Charlotte Douglas International Airport a U.S. Airways flight was landing and shortly after touching down there was a jolt in the plane. Passengers described it as hitting a giant pothole in the middle of the runway. After the fact the pilot came over the intercom and told the passengers that they had hit a small deer. In this situation it did not do any damage to the plane itself but what would happen to a smaller plane.


As one of our own JU Dolphins found out last fall it does a considerable amount of damage to small Cirrus. On his first night flight ever during his flight lessons Sean Carney was landing his Cirrus at Cecil Field. As he landed his was not just a small jolt. Describing the situation Sean said "Typically when you are landing you feel two bumps, the back wheels touching, the front wheels touching and that is it. But on this one I felt three bumps." The third bump was the propeller of the airplane hitting the deer. This plane did not get out as scotch free as the large jet.

This shows the side of the plane after the impact and how much of an effect the deer left. Later that night the National Guard at the airport had to go out and shoot two more deer because they would not leave.

Now as I stated at the beginning, I would like to know why these deer all seem to congregate around airports and a lot of the time the inevitable happens?

"Quantum Locking"

On October 16 some researchers at Tel Aviv University in Isreal uploaded a video of them demonstrating what is known as "Quantum Locking", or in non-scientific terms, making things hover in mid-air.

Here's a link to the video: http://youtu.be/Ws6AAhTw7RA

Even though to most of us this seems like something strait out of a sci-fi film, it is apperently not as complex as it would appear.

To begin, the researchers started with a crystal sapphire waffer and wrapped it with a thin ceramic layer of yttrium barium copper oxide. While this ceramic layer ordinarily has no particularly distinguishing features, when cooled below -185 degrees celcius it becomes a superconductor. The final result is a frozen disc.

When placed over a magnet, the superconductor and magnet would normally repel each other. However, because the ceramic layer is so thin, some of the magnetic force is allowed through the disc at certain weak points in the ceramic layer. Now, these paths of magnetic force through the disc are called flux tubes and are the secret to the researcher's little levetation trick.

Because there are several flux tubes throughout the disc, the flux tubes will try to remain as stationary as possible. This creates a 3D locking effect, which is what the researchers demonstrate.

Here is a link to the researcher's explanation of their demonstration. http://www.quantumlevitation.com/levitation/The_physics.html

On Tuesday, October 4, the Royal Swedish Academy of Sciences awarded 3 astrophysicists Nobel Prize in Physics. By studying the most distant supernovae known to man, Saul Perlmutter, Brian P. Shmidt, and Adam G. Riess discovered that not only is the universe expanding, but the expansion is also accelerating at a constant rate.

However, the two physics teams could not just study any regular supernovae. They had to study a particular type of supernovae, called a Ia supernovae. These incredibly powerful explosions can emit as much light as a whole galaxy, meaning that, hypothetically, they should be of a particular brightness despite being so far away.

In total, the two teams found over 50 distant supernovae, each of them whose light was weaker than would have been expected. The conclusion that both teams reached was that, had the universe's expansion been constant, the teams would have been able to accurately predict the brightness of the supernovae. Therefor, because the stars were dimmer than expected, the universe's expansion is constantly accelerating.

With this new information, do you think it will ever be possible for humanity to know what lies beyond the edge of the known universe?

Here is another online article to the Nobel Prize in Physics.

Free Body Diagrams

Class, if I may call you that. I have been informed that many of you are struggling with free body diagrams recently. I can relate because when I first started learning about them myself I struggled to wrap my head around the concept. Now what I do might seem strange to some of yall however it works for me. What I do is envision myself as the object listed and imagine all of the forces acting on me. It might seem weird but try it sometime it will work. I know Dr. Lane likes when you draw a representation of the object but I also like to use squares it helps to give a better scale on the vectors direction. These free body diagrams help to calculate forces in Newtons Second Law because they show you the magnitude and direction of the forces. In seeing this what you have to do is find the x and y components (try rotating the force to get a vertical and horizontal force line, it helps) then just add them like vectors to find the net force. Let me know how all of this works for you.

VonHayes

P.S. Try looking at this website some time, it divulges a lot of helpful information, http://hyperphysics.phy-astr.gsu.edu/hbase/HFrame.html

The Laws of Physics Reexamined

We all know about the Laws of Physics and how they invariably govern the way the various bodies of the universe interact with one another. These laws are considered unbreakable until proven otherwise.

But are they really?

Thanks to the meticulous recordings of Warner Brothers ® characters such as Buggs Bunny,
Pepe Le Pew, and Wile E. Coyote, newer laws have been under careful review and examination.


The Cartoon Laws of Pysics


Law I) Any body suspended in space will remain in space until made aware of its situation.


Law II) Any body in motion will tend to remain in motion until solid matter intervenes suddenly, stopping the body completely.


Law III) Any body passing through solid matter will leave a perforation conforming to its perimeter. The threat of skunks or matrimony often catalyzes this reaction.


Law IV) The time required for an object to fall twenty stories is greater than or equal to the time it takes for whoever knocked it off the ledge to spiral down twenty flights to attempt to capture it unbroken.


Law V) All principles of gravity are negated by fear.


Law VI) As speed increases, objects can be in several places at once.
This is particularly true of tooth-and-claw fights, in which a character's head may be glimpsed emerging from the cloud of altercation at several places simultaneously. This effect is common as well among bodies that are spinning or being throttled.


Law VII) Certain bodies can pass through solid walls painted to resemble tunnel entrances; others cannot.


Law VIII) Any violent rearrangement of feline matter is impermanent. They can be decimated, spliced, splayed, accordion-pleated, spindled, or disassembled, but they cannot be destroyed.


Provide an example of the above laws that you have personally witnessed.
(I'm talking about what you've seen on TV, not in real life...)