Lenz's Law And Faraday's Law Of Induction
.... oppose this upward increase, the field produced by the induced
current must point downward. Thus Lenz's law tells us that the current must move
by the use of the use of the right hand rule. If the flux decreases, so the
induced current produces an upward magnetic field that is "trying" to maintain
the status quo.
Let us consider what would happen if Lenz's law were just the reverse.
The induced current would produce a flux in the same direction as the original
change; this greater change in flux .....
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The MOBOT Project: Longwood
.... for the design. There were some disagreements about
whether we should take the electromechanical route or the purely electrical one.
And after some deep thought, we all agreed that the mechanical way would be the
simplest to build and the most merciful on our pocketbooks. Even though we were
coming up with some good ideas, each design seemed to contain some major
problems. One of the reoccurring problems dealt with the synchronization of the
driver motor and the steering system. Finally the team came .....
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Fire Ants
.... Forel) were the first to arrive and
spread slowly but steadily despite government intervention to stop them from
spreading(3. Lockley 33). These black ants would spread much further then the
second wave of imported ants recognized as Solenopsis Invicta Buren or red
fire ants(4. Lockley 33). This second wave of ants arrived in about 1945 and
spread much more rapidly and dominated the previous more passive black ant(5.
Lockley 34). Homer Collins, a fire ant expert, stated that "The new invader,
know .....
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The Luminescence Of Black Light
.... then in an unstable environment causing it to fall back into its
original orbit. This process releases energy, and if it is in the visible part
of the spectrum, we have a transient light phenomenon. Ultra-violet light is an
exciting agent which causes luminescence to occur.
There are many materials which exhibit fluorescent characteristics.
Many of which are even organic. Teeth, eyes, some portions of the skin, and
even blood exhibit fluorescent qualities. Naturally occurring minerals such as:
agate, .....
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Magnatism & The Things We Think We Know About It!
.... of iron, Fe, there are four. What happens then in the case of a
natural magnet the unpaired electrons line up or the magnet in a specific mannor.
That is all the atoms with unpaired electrons moving in a direction which
causes a certain charge are lined up on one side and all the atoms with the
opposite charge move to the other side. The atoms then start to cancel each
other out as they approach the center of the magnet. This all happens at the
currie point where these atoms are free to move and th .....
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Memory
.... , short-term , and long-term memory. Sensory memory
is the shortest and less extensive of the others. It can hold memory for only an
instance (Memory p. 32). Suppose you see a tree , the image of the tree is
briefly held by the sensory memory and quickly disappears unless you transfer it
to your short-term memory (Rhodes p. 130). The next level is called short-term
memory. The image or fact can be held as long as the brain is actively thinking
about it (Loftus p. 392). For example , if you look up a num .....
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Newton's First Law Of Motion
.... should
start to move. The car might accelerate to two miles per hour. Now we would
all assume that the car would come to a stop sometime. We assume this because
it is true. It is true because there is friction between the tires and the road.
The car now has inertia in uniform motion. Since there is friction, the car
cannot keep moving forever because friction is an unbalanced force acting upon
the tires.
What if there was not any friction? The car would keep going forever.
That is if there was n .....
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Newton's Law Of Universal Gravitation
.... 9.8
meters (32 feet) per second second as pointed out by Galileo. Thus "the apple
that fell from the tree" fell to Earth at about this rate. For the first basic
explanation of this we will assume a linear plane, one in which all forces act
in only one direction. Therefore when the apple fell it went straight towards
the center of the earth (accelerating at about 9.8 meters per second second).
Newton then figured that the same force that pulled the apple to Earth also
pulls the moon to the earth. But wh .....
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Newton's Method: A Computer Project
.... is
equal to zero, there is no slope to the tangent line.
As seen in experimentation's, it is important to select an initial guess
close to the root because some functions have multiple roots. Failure to choose
an initial value that is close to the root could result in finding a the wrong
root or wasting a lot of time doing multiple iterations while getting close to
the actual root.
On some occasions, the program cannot find a root to an initial guess
that is placed into the program. In some instances .....
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Nuclear Energy
.... these tiny weightd by using special
labratory instruments. Hydrogen is the lightest of all atoms and carbon atoms
weigh twelve times more than the hydrogen atom. Atoms that make up one
alement are not like atoms that make up another element.
These (atoms) are not simple particles, their structure is very complexe.
They are, in fact, made up of smaller bits of matter called subatomic particles.
An atom has two parts. Those two parts are; 1)at the center is a nucleus, a
densely packed core co .....
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Nuclear Energy
.... and electrons, then gathers the neutrons and pulls them
inward. While all these atoms are flying about they smash together then split
many of many times, this is when the reactor grabs and pulls in the frictional
energy to be processed into electrical watts.
This usually causes heat or thermal energy, this must be removed by some
kind of a coolant. Most power plants use water or another type of liquid based
formula. these coolants are always base related, never acidic. Very few use
gas related coola .....
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Nuclear Power
.... collide with another Uranium atom splitting it
apart. Each of these fissioning atoms releases a very large amount of energy,
and some more neutrons.
This process continues causing a chain reaction withut any outside assistance,
and the Uranium has "gone critical"(Martindale, 794-195). This chain reaction
is the basis for how nuclear power is made.
The amount of the energy that is given off in nuclear fission is astronomical.
To equal the amount of energy given off when splitting some uranium the size o .....
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Flourescence In-situ Hybridisation And Its Advantages
.... test cells are cultured
for three weeks and then tested. The chromosomes are then counted manually, and
compared to a chart of normal chromosomes. This can be difficult, as the tester
is looking for an extra chromosome 21. So because the test is much simpler,
quicker, and reduces the risks of miscarriages, flourescence in-situ
hybridisation is an incredible discovery in the field of genetics.
.....
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Nuclear Energy: Uranium Fission
.... from ore. However, a
huge untapped source is our oceans. Sea water contains 3.3x10^(-9) (3.3 parts
per billion) of uranium, so the 1.4x10^18 tons of sea water contains 4.6x10^9
tons of uranium. All the world's electricity usage, 650GWe could therefore be
supplied by the uranium in sea water for 7 million years(Energy 25). This is a
only a theoretical number because it is not possible to get all of the uranium
out of our vast oceans. Also, it does not include the fact that in that many
years, half .....
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Nuclear Power And Its Uses
.... and tests that will cure millions..
Nuclear power can be converted into strong and efficient nuclear energy and be
used for many purposes. Nuclear power reactors generates heat that is converted
into steam. The steam can be used directly for energy. This energy is used in
transportation. Most military subs are now ran by nuclear energy. The most used
purpose of nuclear energy can also be used to generate electric power for
example in a commercial nuclear power plant. Another way to produce nuclear
energy .....
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