The Art of Science

雪儿 · 发表于: 2011-11-24 12:05:09

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Christophe Gissinger / Dept. of Astrophysical Sciences/ Princeton Plasma Physics Laboratory

Pole shift happens

Princeton University's annual Art of Science exhibition explores the interplay between science and art. This image, titled "Chaos and Geomagnetic Reversals," won first place in the 2011 exhibit. The magnetic field of the Earth has reversed its polarity several hundred times during the past 160 million years. Polarity reversals are known to be strongly irregular and chaotic. This image shows a simple deterministic model illustrating the geomagnetic reversals.

雪儿 · 发表于: 2011-11-24 12:06:13

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Zhen James Xiang / Dept. of Electrical Engineering

Deconstructing a tree

Zhen James Xiang's image, which won second place in the Art of Science exhibition, builds upon his research into algorithms that split an image into pieces in a way that best captures important image structure. "The algorithm used here recursively cuts an image into smaller rectangular pieces," Xiang says. "For each cut, a larger rectangle is divided either horizontally or vertically into two equal smaller rectangles. This results in a division of the input image into many rectangular pieces, similar to those shown, organized into a data structure called a dyadic tree."

雪儿 · 发表于: 2011-11-24 12:06:29

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Xuening Bai / James M. Stone (fac) Dept. of Astrophysical Sciences Planets

Dust to dust, to planets?

Planets form from the coagulation of tiny dust particles in a gaseous protoplanetary disk, requiring growth over 40 orders of magnitude in particle mass. A crucial stage in planet formation involves making kilometer-sized planetesimals out of pebbles. This image illustrates this process: Aerodynamical interactions between the gas and the pebbles collect the latter into very dense clumps (bright regions). In turn, these clumps become the building blocks of planets. The image, which won third place in the exhibition, is taken from a hydrodynamical simulation of a protoplanetary disk.

雪儿 · 发表于: 2011-11-24 12:06:43

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Yunlai Zha / Dept. of Electrical Engineering

Fireworks

Arsenic sulfide dissolved in a solution displays colorful random patterns after being spin-coated and baked on a chrome-evaporated glass slide.

雪儿 · 发表于: 2011-11-24 12:06:57

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Yunlai Zha / Dept. of Electrical Engineering

Tropical fish

The random patterns created by arsenic sulfide on a chrome-evaporate glass slide take on the appearance of a colorful fish straight out of a Disney movie.

雪儿 · 发表于: 2011-11-24 12:07:12

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Lisa Boulanger / Dept. of Molecular Biology and Princeton Neuroscience Institute

Intelligence design

This is a pyramidal neuron from the hippocampus, a part of the brain where some types of memories are formed. This neuron has been labeled with fluorescent antibodies so that we can visualize microtubules (shown in green), which form a structural network inside the neuron; and insulin receptors (shown in red), which are cell surface proteins that instruct neurons to make connections with other neurons. These connections, called synapses, become stronger or weaker as memories are constructed

雪儿 · 发表于: 2011-11-24 12:07:24

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Celeste Nelson / Dept. of Chemical and Biological Engineering

Baby dragon lung

This is a detail of an immunofluorescence image of the surface of the lung of a bearded dragon embryo (Pogona vitticeps). Nuclei are stained red and the actin cytoskeleton is stained green. The image reveals a nested hierarchy of tubes designed for effective gas exchange, which develops in the embryo even before the animal breathes air.

雪儿 · 发表于: 2011-11-24 12:07:43

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Yoosik Kim, Stanislav Shvartsman / Dept. of Chemical and Biological Engineering

Patterning the embryo

雪儿 · 发表于: 2011-11-24 12:07:54

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雪儿 · 发表于: 2011-11-24 12:08:06

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Manu Sebastian Mannoor, Michael McAlpine / Dept. of Mechanical and Aerospace Enginneering

Wireless sensor on tooth

A wireless graphene sensor is patterned on water-soluble silk film. The image shows the sensor transferred onto a cow tooth surface by dissolving the supporting silk film. The gold electrodes and coil form the main components of the wireless circuit. The graphene layer under the electrodes can detect bacterial contamination and can be read out wirelessly.

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[2011年] The Art of Science

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