Girl with a knot
Based on: St. Wyspianski Dziewczynka z wazonem See: Galeria malarstwa polskiego
For more pictures see:
Knots in art :-)
Poznan University of Technology
Laboratory of Computational Physics and Semiconductors
Nieszawska 13A, 60 965 Poznan, Poland
office: +48 61 665 31 63
home: +48 61 862 58 53
cellular: +48 606 81 40 46
How much money you need to make an experiment, the results of which can be published in a top quality physical journal?
I have been asking myself the question since I started my carrier in science.
Today, I know the answer:
There is no lower limit.
You may spend 1 000 000 $ to produce a paper which will be accepted by the referees. But, if you are clever enough, 10 $ is more than sufficient.
The research in physics, as any other kind of the human activity, displays an enormously wide range of diversity.
It can be:
Physics can be fun. The flying frog experiment is the best example. Its authors, Geim and Berry, enjoy science. I am convinced, this particular piece of physics attracted to the wonderful playground of science more brilliant children than any of the billion dollars experiments.
- costly and serious
- costly and funny
- cheap and serious
- cheap and funny
Looking into my own work I find it it certainly located within the last two categories. Cheap and serious is what I think I managed to achieve in most cases, but the most precious cheap and funny level I reached no more than twice.
It is my aim to show you a few examples from my own and others work. Have a look and think. And remember: cheap cannot mean shabby, funny cannot mean ridiculous. It can be cheap and funny but it must be science.
NONLINEAR DYNAMICSMANY BODY SYSTEMSBouncing ball
Wonderful threepenny experiments in the nonlinear dynamics can be found in Elisha's Moses home pages. The falling paper experiment is a good example.
Peas on the drum
Some of the experiments performed on the granular materials belong also to threepenny physics class. Experiments made by Stephane Duoady, Éric Falcon, Stéphan Fauve and others (Laboratoire de Physique Statistique, de l'Ecole Normale Supérieure) are certainly of the kind.
PHYSICS OF KNOTSPhysical knots - an introduction
Open knots tightened on the perfect rope
Closely packed helices
Introduction into the problem of ideal knotsSymmetry of ideal knotsTendril perversion
Symmetry breaking in large torus knots
The ideal trefoil knot
Quasi-quantization of writhe
Problem of the ideal twisted pair
Figures of ideal knots with up to 8 crossings
Parameters of ideal knots with up to 9 crossings
"Physical Knotting and Unknotting", Las Vegas 2001
"Calculations and Simulations in Knot Theory and Its Applications", San Francisco 2003
San Francisco 2003, individual photos
It's really nice to have a twin.
If you happen not to have one, think about it next time ;-)
In memory of all victims