Patrick E Trapa
Dost thou know of a mythical class,
In a land where beauty and truth are one.
Feebly the apprentices strive to pass
For the horrible trial soon will come.
Unmatched, the great pain and suffering endured,
So that the art of magic could be their master.
In toil, the tools of the wizards must be secured
Or else, May 25th will come in disaster.....
Not but the giants of Newton's fame declare:
"The Truth is Out There" somewhere.... Somewhere.
Footnote:If you want to keep it a true acrostic (and probably a bit better "poem"), you can change the last line to: No one has found the truth to set them free.
Clark Allred The Kinetiwhacky (by Lewis and Clark)
Robert Bernstein: Two Semesters
Larry Lee and Wendy Mao Kinetics Limerick
W. Craig Carter (1999)
Portions of Diffusion
Atoms to Mecca
The Atomistic Address (Address delivered at the closing of a group homework meeting)
A Vacancy Named Cheshire
there once lived a vacancy in the valley of silicon
who met many an atom via self diffusion.
the vacancy was known by the name of cheshire;
throughout his entire life he had but one desire-
migration to the surface, the land just beyond.
life in outside, he was told, was really swell;
"it's much better," he thought, "than life in this hell."
not a second had he here to claim as his own,
for in silicon, he was all too well known
by anxious atoms as a new place to dwell.
as their walks were random, cheshire was quite sure,
that even the atoms' thoughts were non sequitur.
"chaos and disorder, they act without rules,
i'm thrust to and fro in this deranged ship of fools."
and he made haste at once towards the exterior.
without further adieu he charted his route,
"i really must get out. out, out out!"
cheshire stayed up late and even missed the smurf's
to study kinetics and derive the erf(z).
"yes," he realized, "i can do it-no doubt."
befriending adam, his neighbor to the west,
cheshire embarked on an unheard of quest.
"the atom is dumb; he'll do what i say,
and before i know it, i'll be on my way."
there truly was a method to his madness.
"adam, do you see the gal to my right?
she says you are the smartest guy in sight."
adam hopped over with a slight prance
to talk to the girl and display his brilliance.
one step closer, cheshire's smile was bright.
with tricks like these, cheshire sailed steadily on,
until he met conrad, the interstitial atom.
"a defect no more will i be," conrad announced,
and before cheshire could move, conrad pounced
desiring a life of less stress and greater freedom.
Ellen J. Siem, 2001
A Limerick on The First Year Experience
Limerick at Zero K
The Life of an Atom
Garry Maskaly, 2001
Joshua Hertz, 2001
Based on Green Eggs and Ham by Dr. Seuss
That kinetics man! That kinetics man! I do not like that kinetics man! Would you like to random walk? I want to make it down the block. So I do not want to random walk. But you could go here and there, You could wander everywhere. I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block. Would you like nowhere to go? Would you like average displacement to be zero? I have somewhere I'd like to go I don't want average displacement to be zero. I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block. Would you like to on a lattice? Your center of mass will not change in status. I would not like to on a lattice I want my center of mass to change in status. I have somewhere I'd like to go I don't want average displacement to be zero. I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block. But your steps would be independent, Wouldn't you prefer an uncorrelated event. I do not want my steps independent, I would not prefer an uncorrelated event. I would not like to on a lattice I want my center of mass to change in status. I have somewhere I'd like to go I don't want average displacement to be zero I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block. Would you like to with Einstein? You won't have to walk in a straight line. I do not want to with Einstein. The way I plan to go is fine. I do not want my steps independent, I would not prefer an uncorrelated event. I would not like to on a lattice I want my center of mass to change in status. I have somewhere I'd like to go I don't want average displacement to be zero I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block. But don't you love Brownian Motion Isn't it the best way to undergo diffusion I do not like Brownian motion It isn't the best way to undergo diffusion. I do not want to with Einstein. The way I plan to go is fine. I do not want my steps independent, I would not prefer an uncorrelated event. I would not like to on a lattice I want my center of mass to change in status. I have somewhere I'd like to go I don't want average displacement to be zero I would not like to here and there I would really like to get somewhere. I do not like to random walk I want to make it down the block.
Elsa Olivetti, 2001
Competitive Nucleation Ahh, finally I made it, critical size Surface energy no longer a barrier Being outside the spinodal, Arrhenius lent me a hand Against probability I've made it this far Collecting from around me I will expand Straining for that lowest fr ee energy As long as I stay ahead of the curve, above average I will survive. My brothers around me I will savage It is a grain eat grain crystal
Jennifer McKeehan 2002
From this state of unordered and fluctuating feelings
Generated by the perturbations of the first meetings
Atoms of concideration, attraction and admiration
Aggregate in this kinetic process called nucleation ,
Spinodal decomposition between the present and the past,
Leading to small nuclei of Love; But will they last ?
Under the classical and reasonnable assumption
That after this preliminary period of incubation|
The free energy of hearts decreases as loneliness ceases
And in the case where the surface energy of bodies
Provides enough attraction against any elastic constraint,
Even coarsening won't make their growth faint
And these initial nuclei will, from their critical point,
Build a stronger and stronger new love, that's the point
Gilles Benoit 2002
And so begins a single phase, all happy and true, But then the temperature drops, so the atoms change too! All quiet and still, yet some finite fluctuation. Lo and behold, the beast of nucleation! We start with grains, sub-critical nuclei, But then alas, they grow, oh please, don't cry. The atoms don't leave, they simply reform. A new matrix, it grows, all they do is conform. What type of growth, it must be better, oh! Of course, due to surface defects, it's commonly hetero! And then we come to regimes, there's only but four. Incubation and steady-state, but wait, there's more! Equilibrium and coarsening, these are the last two, It's easy to remember, like cows going moo. To incubate, there's a delay and we call it tow. moving on to steady-state, whoa the particles increase, wow! We slow down at the top it's called saturation, Some call it equilibrium, and some just maturation. And as all singers tire out, and their voices hoarsen. We see in nucleation, the particles will coarsen. And now let's step back, well don't get too cheery, What we'll do now is form a simple theory. So if we take free energy per unit volume and surface tension We're obtaining free energy, being isotropic and spherical, not to mention. Combine them, there's a hump that it must get over, And unless you're thermally activated, it's like the Cliffs of Dover! So once we find the radius just above critical It's home-free to grow, and it feels, oh so, lyrical Now you know in all this I'm not being whimsical You can really observe this, it's true, it's empirical So once again, it's all about free energy it can be so simple, like reading a liturgy This concludes my treatise, if you want to go farther, Just ask our professors, Sam Allen and W.C. Carter! Kuangshin Tai 2002
A Tribute to Nucleation and Growth Free energy barrier is a major burden. Transformation cannot happen without aid. The question is what can we do to make it happen. The answer is something has to nucleate. In the beginning there was incubation. The question is "When will we get to steady state?" Patience will lead to further fluctuation. Then nuclei will show and grow at a steady rate. Rolling down the gradient slope. Gathering buddies along the way. Which one of them will have hope? The truth is only the big ones will stay. Such is the story of nucleation and growth. Nature has chosen this approach. Preston LI 2002
Nucleation and Growth in Ice-Cream
Undercooling below freezing Nucleates the ice-cream mix. Heterogenous nucleation Occurs from all the solute bits. To get a smoother, creamier texture, We need to make the crystals smaller. So freeze it faster, stir it quicker, And don't forget the stabilizer! For ice-cream crystals are unstable,
Growing, fusing, becoming fewer, Till all small crystals dissappear. Behold, the coarse and icy texture That all the ice-cream makers fear. If you, by chance, let ice-cream melt, And put it back into the freezer, It's not as good as freshly-made As you can't get it to re-nucleate. The larger crystals just get bigger, And refrozen water makes it icier. So if you make ice-cream, remember To freeze it fast, and mix it well And always keep it very cold. Shona Pek 2002
Nucleation is creation
Of a new phase in the old phase. Homogeneous, het'rogeneous, It's one by one or all at once. Which will it be? Well it depends, Free energy decides who wins. Het'rogeneous is the favorite, But so we thought of the rabbit. He thought for sure he would have it, Het'rogeneous mister rabbit, But given the right conditions, Turtle Homogeneous won! Growth also comes from diffusion, But it causes me confusion By fighting with nucleation. Why can't they both get along? Hong Linh 2002
A short poem on the 4 regimes of nucleation and growth: Nucleation begins with incubation, as small nuclei struggle to rise in concentration. When stable nuclei form at constant rate, nucleation is at steady state. Alas, supersaturation will ultimately decrease, causing the nucleation rate to almost freeze. Now particles will grow by coarsening, which the smaller ones find frightening. A haiku on nucleation and growth: Metastable phase Critical nuclei form Grow as G declines Tseh-Hwan Yong 2002
"The solace of homogeneity: The Trials and Tribulations of a lonely 'A' Phase Atom" Loneliness is but the faintest hint of what I suffer; I had another atom once-- she left me for another. I had such aspirations then-- I strived toward different state, But now my dreams have washed away-- statistically, I wait And wonder: "Could there possibly, a different order be?" (Let's call it, for the sake of it, the phase of nomen "B"). I'd anything to leave my life-- become a part of "B," But 'till then I'll incubate, in favored energy.` Adam J. Nolte 2002
The Lament We are the subcritical nuclei, Oh me, oh my! If we could only grow, Think of where we would go! A particle more or two, Think of what we could do! I know! We should join forces! Of courses!!! I really am trying to diffuse, It's not a ruse! Oh no- some atoms are leaving! Time to start grieving! I wish I could have grown, I will never be a grain of my own!!! Lara Abbaschian 2002
Nuclei Where nuclei these are I think I know They are in the matrix though They will not see me stopping here To study them how to grow My mother must think it queer How can I know it clear Between the incubation and steady state The most complex theory here The smaller is becoming smaller The bigger is getting bigger Want to be a stable nuclei Passing the critical size is much better Bo Zhou 2002
something was happening it was cooler or everything was imperceptibly trembling or both something i felt different uneasy oddly i started getting closer to my neighbors we had never been very close but something was happening maybe we needed solace maybe just the knowledge that there were others that this wasn't our own insanity sometimes those i had rallied around would be pulled apart i never knew why no one would ever say sometimes an individual would drift off and although this made more sense they never gave reasons we didn't talk much in general i think the fact that we were moving together worsened the internal disquiet we all felt our need for one another screamed that something was different we always stood shaking in the dark and as more joined those huddled masses i felt their fear their discomfort and my own grew stronger perhaps that's why we so often slipped away in the night leaving in smaller groups or alone to ease that tension at some point after i don't know how long i was introduced to another gathering probably the largest i'd seen it was crowded and difficult to see everyone they seemed to have drive to know where they were going my unease my disquiet and my fear were lifted i don't know what happened since then i have moved around a lot i always ask but no one ever knows we all seem closer now not just the initial group i ran into everyone i meet and our relationships have changed but i don't know what happened no one does Robert Damien Boyer 2002
Heterogeneous Haika (Heterogeneous Haiku Series) Poor material! You're full of imperfections - Some dislocations. Like leaves fall to earth with energetic ease, you Nucleate quickly. Often beginning Where the grain edges do meet; Look! Lenticular! At dislocations: Incoherent to the core Cahn is your daddy As years have seasons You pass through the four regions; Now fewer, larger. Mike Tarkanian 2002