Computer Model Collection (#5)

Elaidic acid, computer model
Elaidic acid. Computer model of a molecule of elaidic acid, a trans fatty acid. Atoms are represented as spheres and are colour-coded: carbon (green), hydrogen (white) and oxygen (red)

Tetrodotoxin molecule. Computer model of a molecule of tetrodotoxin (TTX), a powerful neurotoxin. Atoms are represented as spheres and are colour-coded; carbon (grey), hydrogen (turquoise)

Linoleic acid, computer model
Linoleic acid. Computer model of a molecule of linoleic acid, an omega-6 essential fatty acid. Atoms are represented as spheres and are colour- coded; carbon (blue), hydrogen (gold) and oxygen (red)

Ribozyme molecule
Ribozyme. Computer model of a ribozyme molecule. Ribozymes are RNA (ribonucleic acid) molecules that catalyse certain biochemical reactions

Classical chaos

Sulphur dioxode molecule
Sulphur dioxide. Computer model of a molecule of sulphur dioxide (SO2). Atoms are represented as spheres and are colour-coded: sulphur (yellow) and oxygen (red)

Rhenium trioxide crystal structure. Computer model of a rhenium trioxide (ReO3) crystal. This is a primitive cubic lattice

Torus. Computer model of the three-dimensional projection (or shadow) of a 4-dimensional torus, a mathematical shape. The projection is covered in holes to show the looping intersecting structure

Icilin cooling molecule. Computer model of a molecule of the cooling agent icilin. Atoms are represented as spheres and are colour-coded: carbon (blue), hydrogen (white)

Chaos map. Computer model of a " chaotic map". This image was produced by Eric Heller, professor of physics at Harvard University, USA

Classical and quantum chaos. Computer models of two types of chaos. The sphere (upper left) is a random wave, an example of quantum chaos. It is formed by the random addition of quantum waves

Delphinidin molecule. Computer model of a molecule of delphinidin. Atoms are represented as rods and are colour-coded: carbon (green), hydrogen (white) and oxygen (red)

Torus. Computer model of a mathematical shape known as a torus. A torus is a four-dimensional object but it is seen here as a three-dimensional object

Chaos map. Computer model of chaos produced by a repeated mathematical operation (iteration) called mapping. Mathematical mapping involves repeating rules that tell you how to change the original

Iron silicide crystal, computer artwork

Three types of chaos

Nylon molecule. Computer model of a molecule of nylon-6. Atoms are represented as spheres and are colour-coded: carbon (pink), hydrogen (white), oxygen (yellow) and nitrogen (blue)

Polonium crystal structure, computer model. This is the alpha (cubic) form of solid polonium. Polonium is a rare radioactive element. It is most often found in nature in uranium ores

Electron flow. Computer model representing the flow of electrons through a two-dimensional electron gas (2DEG). The " gas" is composed of many free electrons

Optical pattern. Computer model of patterns formed by bending a coloured transparent sheet. The flat structure is distorted, as seen by the distortion of the gridlines

Oleic acid, computer model
Oleic acid. Computer model of a molecule of oleic acid, a monounsaturated fatty acid. Atoms are represented as spheres and are colour-coded: carbon (green), hydrogen (white) and oxygen (red)

Vitamin C molecule
Vitamin C. Computer model of a molecule of ascorbic acid (vitamin C). Atom are represented as spheres and are colour-coded; carbon (grey), hydrogen (blue) and oxygen (red)

Tryptophan amino acid molecule
Tryptophan molecule. Computer model of a molecule of the amino acid tryptophan. Atoms are represented as spheres and are colour-coded: carbon (light blue), hydrogen (silver)

Water molecules. Computer artwork of molecules of water (H2O). Atoms are represented as spheres and are colour-coded; hydrogen (blue) and oxygen (red)

Gamma-linolenic acid, computer model
Gamma-linolenic acid. Computer model of a molecule of gamma-linolenic acid (GLA), an omega-6 essential fatty acid. Atoms are represented as spheres and are colour-coded; carbon (blue)

Rhombic sulphur crystal. Computer model of the rhombic crystal structure of sulphur. The basic structure of this crystal is a ring of eight atoms

Methane hydrate. Computer model of the structure of methane hydrate, also known as methane ice or methane clathrate. It consists of a molecule of methane

Pyrite crystal structure
Pyrite crystal. Computer model of the crystal structure of pyrite (iron disulphide), commonly known as fools gold

Quartz crystal structure. Computer model of the crystal structure of quartz (silicon dioxide). Crystals of quartz can now be produced synthetically and are mainly used in optical

Quantum tunneling. Computer model of a quantum wavefunction trapped in a deep well (centre). In classical physics, the particle described by this wavefunction doesn t have enough energy to emerge

Quantum resonance. Computer model showing quantum resonance. A quantum wavefunction is seen as the parallel waves moving up from bottom. They hit a barrier (black, lower centre)

Molecular collisions. Computer model of molecules colliding in a 2-dimensional area. The coloured tracks show the successive positions of the atoms in each molecule

Scarred quantum wave. Computer model showing the paths taken by a wave trapped inside a stadium- shaped cavity. The paths show the movement of a particle which is behaving like a wave

Ocean current speed. Computer visualisation of ocean surface current speeds. Major ocean currents (coloured white) are visible, such as the Agulhas current (eastern side of Africa)

Copper crystal structure
Copper crystal, computer model. This is a face centred cubic structure. Copper is a malleable metal element that is an excellent conductor of heat and electricity

Simvastatin cholesterol-lowering drug
Cholesterol-lowering drug molecule. Computer model of a molecule of the cholesterol-lowering drug Simvastatin. This drug reduces the levels of low- density lipoprotein (LDL)

Tacrolimus drug molecule
Tacrolimus immunosuppressant drug molecule. Computer model of a molecule of the immunosuppressant drug tacrolimus. Atoms are represented as spheres and are colour-coded; carbon (gold)

Schizophrenia drug molecule. Computer model of a molecule of the schizophrenia drug quetiapine. Atoms are represented as spheres and are colour- coded: carbon (light blue), hydrogen (white)

Berberine molecule. Computer model of a molecule of the plant alkaloid berberine. Atoms are represented as spheres and are colour-coded: carbon (green), hydrogen (white)

Beta-blocker drug molecule. Computer model of a molecule of the beta-blocker drug atenolol. Atoms are represented as spheres and are colour-coded: carbon (light blue), hydrogen (white)

Artemisinin malaria drug molecule. Computer model of the malaria drug artemisinin. Atoms are represented as spheres and are colour-coded: carbon (green), hydrogen (blue) and oxygen (red)

Donepezil Alzheimers drug. Computer model of a molecule of the Alzheimers drug donepezil. Atoms are represented as rods and are colour-coded: carbon (green), hydrogen (white)

Ciprofloxacin antibiotic molecule. Computer model of a molecule of ciprofloxacin, a broad spectrum antibiotic. Atoms are represented as rods and are colour-coded; carbon (light blue)

Cd28 antigen molecule. Computer model showing the secondary structure of cd28. Cd28 is an antigen found on the surface of T cells

Rosiglitazone diabetes drug molecule. Computer model of a molecule of the diabetes drug rosiglitazone. Atoms are represented as rods and are colour-coded: carbon (blue), hydrogen (white)

Rivastigmine Alzheimers drug. Computer model of a molecule of the Alzheimers drug rivastigmine. Atoms are represented as spheres and are colour- coded: carbon (green), hydrogen (white)

Rifampicin antibiotic molecule. Computer model of a molecule of the antibiotic rifampicin. Atoms are represented as rods and are colour-coded; carbon (green), hydrogen (white)

Vancomycin antibiotic action. Computer model showing the secondary structure of the enzyme glycosyltransferase (spirals and ribbons)

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