not happy, click that lil' red cross over there.

michael
mo
181193
SJI.trampGym

*sigh*
practicing maths sucks
stupid quadratic equations.
-.-
and that physics.

V=I R..
E= W over Q...
Electro Motive Force...
etc etc

so damn cheeeeeeeeem la.
after all, it IS cheeminology week
yes jerry,
there are advantages of tuition. i can see that NOW.
-.- bah.

lets post some absolutely cheem gibberish.

PART 1
Quarks
Quarks are fundamental matter particles that are constituents of neutrons and protons and other hadrons. There are six different types of quarks. Each quark type is called a flavor.
Quark Masses
Quarks only exist inside hadrons because they are confined by the strong (or color charge) force fields. Therefore, we cannot measure their mass by isolating them. Furthermore, the mass of a hadron gets contributions from quark kinetic energy and from potential energy due to strong interactions. For hadrons made of the light quark types, the quark mass is a small contribution to the total hadron mass. For example, compare the mass of a proton (0.938 GeV/c2) to the sum of the masses of two up quarks and one down quark (total of 0.02 GeV/c2).

So the question is, what do we mean by the mass of a quark and how do we measure it. The quantity we call quark mass is actually related to the m in F = ma (force = mass x acceleration). This equation tells us how an object will behave when a force is applied. The equations of particle physics include, for example, calculations of what happens to a quark when struck by a high energy photon. The parameter we call quark mass controls its acceleration when a force is applied. It is fixed to give the best match between theory and experiment both for the ratio of masses of various hadrons and for the behavior of quarks in high energy experiments. However, neither of these methods can precisely determine quark masses.

PART 2

Molecular Structure Calculations
Colby Chemistry, Paul J. Schupf Computational Chemistry Lab
The simple theories of bonding that we learn in General Chemistry are powerful and useful. These theories, which include Lewis structures, VSEPR, and hybridization, are simple models that help predict chemical properties. However, Lewis dot structures and hybridization are approximations that may or may not match reality. We should verify the usefulness of our simple predictions with molecular orbital theory. If the theoretical calculations are done carefully, we can learn a lot about chemical structure by comparing our Lewis structures and hybridization arguments with the molecular orbitals.

The calculations in this database include bond lengths, angles, atomic charges, the dipole moment, bond orders, and molecular orbital energies. The best Lewis structure that fits the molecular orbitals is also calculated, so you can directly compare with your predictions. This best Lewis structure is presented with formal electron pair localized bonds and the hybridization of the atomic orbitals used to form these localized bonds. The Chime plugin is needed to see the 3-D structure of the molecules in these pages. See the link at the bottom of the page for the Chime plugin.

Molecular orbital theory is based on approximations also. These calculations are done with some of the best available calculation methods (DFT for geometry and molecular orbital energies and ab initio for properties). We use Alain St-Amant's DeFT program (University of Ottawa).

The Molecular Structure Input Form, see below, will allow you to do calculations for molecules not in the database. These calculations take time; 1-2 hours in some cases.

PART 3

Carbon nanotubes
Carbon nanotubes (CNTs) are allotropes of carbon. A carbon nanotube is a one-atom thick sheet of graphite (called graphene) rolled up into a seamless cylinder with diameter of the order of a nanometer. This results in a nanostructure where the length-to-diameter ratio exceeds 10,000. Such cylindrical carbon molecules have novel properties that make them potentially useful in a wide variety of applications in nanotechnology, electronics, optics and other fields of materials science. They exhibit extraordinary strength and unique electrical properties, and are efficient conductors of heat. Inorganic nanotubes have also been synthesized.

Nanotubes are members of the fullerene structural family, which also includes buckyballs. Whereas buckyballs are spherical in shape, a nanotube is cylindrical, with at least one end typically capped with a hemisphere of the buckyball structure. Their name is derived from their size, since the diameter of a nanotube is on the order of a few nanometers (approximately 50,000 times smaller than the width of a human hair), while they can be up to several millimeters in length. There are two main types of nanotubes: single-walled nanotubes (SWNTs) and multi-walled nanotubes (MWNTs).

The nature of the bonding of a nanotube is described by applied quantum chemistry, specifically, orbital hybridization. The chemical bonding of nanotubes are composed entirely of sp2 bonds, similar to those of graphite. This bonding structure, which is stronger than the sp3 bonds found in diamond, provides the molecules with their unique strength. Nanotubes naturally align themselves into "ropes" held together by Van der Waals forces. Under high pressure, nanotubes can merge together, trading some sp2 bonds for sp3 bonds, giving great possibility for producing strong, unlimited-length wires through high-pressure nanotube linking.

now. thats it for the cheeminology.
haha.
i actually partially understand all that gibberish-ie crap. :D
haha
i shall post cheem stuff all throughout cheeminology week:D

rain or shine,
no matter what the clime,
i'll bidy my time,
cause you'll always be mine
(come on go online!!)

buh bye. :D

ShoutMix chat widget

Jerry
Glen
Mikhail

layout byleen

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you are patient,
you are kind,
you'll never leave our minds,
you can hurt in the behind.

you are tender,
you are strong,
you would make a good steak,
and could last forever.

you are pleasure,
you are pain,
you're about giving,
and not what we stand to gain.

you are honest,
you are trust,
truth here is a must,
stop thinking about all that lust.

you are beautiful,
you are sexy,
sometimes you're so petty,
nothing but messy.

you are nowhere,
you are everywhere,
people are always looking for you,
surprise them, that's what you always do.

you are everything,
you are nothing,
no one could ever find the right words for you;
i know it's not nice,
but your name will have to suffice,
so... what are you?