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Spray Printing Single Crystal Electronics

Atoms like to combine in lattice-like arrays that we call crystals. Atoms and molecules often combine with each other based on how their outer electron shell is filled. When there is a good match and conditions permit, a crystal “seed” can form and then add outer layers to it, growing a crystal. Often, many crystals […]

Photonic Crystal Fibers

Photonic crystal fibers (PCFs) are microstructured optical fibers that use tiny air hole capillaries arranged in a pattern around the center of the fiber. This makes the light propagation far superior to conventional fibers, requiring fewer repeaters and less amplification over long distances. PCFs are also capable of handling high energy lasers efficiently. What is […]

Spin Liquid Magnetism

Superconductivity is a state that occurs in some materials, at low temperatures, where there is little or no resistance to movement of electric charge. Electron “spin” is a term used to describe angular momentum (spin) observed in the electric and magnetic charges of electrons. Normally, an object that is magnetic has the magnetic spin of […]

Smart Colloids

Smart fluids have particles added to them that allow characteristics of the fluid to be controlled by an external factor such as an electro-magnetic field or light or sound. A common example is using magnetic particles in fluid to alter the viscosity and create a controllable damping effect or reduction in vibration. Think shock absorber […]

Liquid Crystal Phonon Lenses

Liquid crystals are substances that have some form of crystalline structure and exhibit some characteristics of crystals but flow like a liquid. They form long thin molecules that have either some electromagnetic component or an optical component such as light polarization. Liquid Crystal Displays (LCD) use these electrical and optical qualities of liquid crystals to […]

Crystal-like Structure

This article begins by comparing crystals to mother of pearl. Then it moves into problems in robotics that are being solved by building intelligence into form and shape. Crystals, Information And The Origin of Life – [technologyreview.com] The combination of information theory and crystallography should lead to a better understanding of DNA molecules, cells and […]

Super Hard Cubic Aluminum

Aluminum oxide (Al2-O3) in it’s crystalline form is known as corundum and is second to diamond on the hardness scale. When it includes traces of chromium, creating a red color, it is called ruby and with traces of chromium, titanium, iron or other elements creating other colors, it is called sapphire. Creating the Heart of […]

Photonic Colloidal Crystals

A colloid is a suspension or dispersion of one substance inside another, typically held in place by electromagnetic fields. Examples of common colloids include, blood, milk, ink, gelatin, smoke and fog particles. Destabilizing the electromagnetic field often causes the particles to precipitate out of their suspended state. Colloidal particles can also self-assemble or crystallize into […]

Quasicrystals

Quasicrystals seem to exist in a state somewhere between glass (disordered atoms) and crystals (ordered atoms) and show qualities of symmetry that were thought impossible. Quasicrystals – [bbc.co.uk] Quasicrystals are interesting quirks of solid-state physics. It used to be thought that the atoms in solid materials1 were either totally ordered (crystalline) or totally disordered (glasses), […]

5-fold Crystal Symmetry

5-fold Crystal Symmetry

Corannulene is a hydrocarbon molecule (C20 H10) that is formed from a cyclopentane ring (C5 H10) surrounded by five benzen (C6 H6) rings. Its curved geodesic surface puts it in the company of fullerenes including buckballs and nanotubes and for this reason the bowl shaped molecule is often called a “buckybowl”. Because of the five […]