Sunday, August 26, 2012

Air Pressure Homeschool Science Experiment - How Airplanes Fly [sciencetechnology-center.blogspot.com]

Air Pressure Homeschool Science Experiment - How Airplanes Fly [sciencetechnology-center.blogspot.com]

Question by Kitty: What is the difference between animal science and zoology? I'm about to start college in the fall of 2009 and I want to Know whether animal science is better than zoology for a career as a vet. Thanks =] Best answer for What is the difference between animal science and zoology?:

Answer by Danielle B
Definitely animal science. It has a lot more practical experience that can be applied to vet school. My majors in undergrad were wildlife management and biology (close enough to zoology) and you don't get nearly enough time under a microscope, which would have really helped me now in vet school. Remember, grades aren't everything, experience is equally important. I have some classmates with degrees in Journalism or Acting, that took the required courses and are now in vet school. They do have awesome experience backgrounds, which is what made them stick out. Good experiences are: working for a vet clinic (obviously), or working on a farm with large animals. Humane shelter volunteering doesn't count for much since everyone does it, and you want something that will make you stick out from the others. Also a world of caution: I went to vet school wanting to become a wildlife vet- they only accept the best and the brightest to become board certified wildlife vets (which you need to work in a zoo and most state programs). However, you need a 3.9-4.0GPA throughout vet school, and then need to take a 3yr residency, which is hard to find. A 4.0 in vet school would take away most people's sanity. I had a 3.89 in undergrad, and am studying my butt off in vet school, and only managing a 3.5 so far. I am planning on doing wildlife on the side, mainly for local organizations, while being a large animal vet in practice.

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See the full Portal 2 Walkthrough here: goo.gl ➜ Portal 2 Walkthrough/Lets Play▼ Portal 2: Chapter 7: The Reunion Portal 2 vs. Lewis as he takes on this mind bending game where he will have to work through brain aching test chambers only to see that the puzzles get harder and harder. As a general note, Lewis unfortunately knows what he is doing but he will add some good old English commentary on top of his amazing skill. Expect him to get stuck though! Enjoy. ►Portal 2▼ Portal 2 follows the player-character Chell after the end of Portal, in which she destroys the rogue artificial intelligence construct GLaDOS that ran the Aperture Science Enrichment Center where the game is set. In Portal's backstory, Aperture Science conducted experiments to determine whether human subjects could navigate dubiously safe "test chambers", until GLaDOS killed the scientists with a neurotoxin. The ending of the first game, retroactively patched just prior to the sequel's official announcement, shows Chell being dragged away from the remains of GLaDOS by an unseen figure with a robotic voice, later identified by writer Erik Wolpaw as the "Party Escort Bot." A promotional comic shows that an estranged Aperture Science employee placed Chell into suspended animation for an indefinite amount of time, in an effort to save her life. Chell wakes to find herself in what appears to be a motel room. An announcer's voice guides her through a cognitive test before she is put back to sleep. When she ...

Portal 2 - Walkthrough Part 19 [Chapter 7 The Reunion 4-5] - W/Commentary

Homeschool science education is fun! It is more fun when you can use things found around the house to demonstrate some naturally occurring phenomena such as air pressure. Flying a toy plane is every child's dream, and if it is combined with education, it can promote better understanding.

Before we go into the fun learning activities that you could co-ordinate with a homeschool science program, let me teach you some principles on which airplanes fly. There are some forces working on an airplane as it flies. They are the forces of thrust and drag and lift and gravity.   Thrust moves the airplane forward, and is provided by the jet engine and the propeller. Drag is a force of resistance that works in the opposite direction of thrust and slows down the airplane. Lift works in the upward direction and is produced by the wings. Gravity works in a direction opposite to the lift and pulls the plane down due to its weight. The right balance between these four for ces keeps the plane flying.   Airplanes are shaped in such a way so as to minimize drag caused by air pressure, in order to allow them to glide smoothly. When air hits a moving object having a smaller area, it does not cause much resistance since there is less air pressure working on that object. On the other hand, when air hits a moving object with a larger area, it causes resistance as there is a higher pressure working on that object.   This is why airplanes are aerodynamically designed with cone-shaped noses so that the air pressure on the airplane body is reduced. This reduces drag and allows them to glide effortlessly through the air.   As an airplane moves with great speed on the runway, the wings are tilted upwards, increasing the air pressure on them. Therefore the airplane is lifted off the runway and rises higher. The angle of the wings determines how high the airplane will lift. In the same way, air pressure is used to maneuver the plan e using the tail rudder.   You can blend the following fun activity with your homeschool science program. Buy a balsa wood toy airplane at your local store or drug store. As we assemble the airplane, we will experiment how it flies as we add each part.   To begin with, fly only the airplane body without the fins or wings. You will find that it is no better than a shoe flung in the air. The thrust is of no use, as it cannot make the right use of air pressure to fly.   Now attach only the large wing and fly the airplane. Your plane will seem to lift but then somersaults or plummets to the ground.

Next attach the horizontal stabilizer tail and fly it with a curve. You will notice that the somersaults have stopped but there is a zigzag movement.   Attach the vertical tail or rudder and now check out your toy airplane. This time you will notice a successful flying spell without any fishtail movements.   Here's something for you t o figure out on your own. Fly the airplane without the metal nose clip and see what happens. What is the purpose of this metal clip?   If you enjoyed your airplane lesson and experiment, let me tell you that I have loads of similar activities to enhance your homeschool science learning. To get great science experiments and activities visit the free "Homeschool Parent's Guide to Teaching Science" at the link below.

Related Air Pressure Homeschool Science Experiment - How Airplanes Fly Issues

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