Archive for electricity

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1778 – Davy – bio

Humphry Davy was born in Cornwall, England, in 1778 and was known as a chemist. Davy used electric current from a voltaic pile to perform early forms of electrolysis and discovered sodium, potassium, barium, calcium, strontium and magnesium. He was the first to isolate barium and boron. He created the first electric arc lamp by […]

Ballistic Electron Flow

Ballistic conduction is when electrons move through a medium with minimal scattering and resistance. This happens in nanowires and nanotubes because of their small diameter. Experiments confirm theory of “superballistic” electron flow – [mit.edu] The idea behind superballistic flow is that interactions among electrons make them move in a highly coordinated manner, mimicking the behavior […]

1930 – Cooper – bio

Leon Cooper was born in 1930 in New York, USA. He is most known for discovering how electrons pair together, creating a state of less resistance, known as superconductivity. These are now called, “Cooper pairs”. Bardeen, Cooper, and Schrieffer, built on this concept to create a theory of superconductivity in 1957. The three of them […]

Vortex Wind Generator Wiggles

Vortex bladeless wind generators respond to air movement by vibrating and oscillating as eddy currents curl around them. The motion created in the masts can be harnessed to produce electricity, using a linear alternator. This greatly reduces the cost of energy capture. Vortex Bladeless Wind Generator. – [youtube.com] Vortex Bladeless: a wind generator without blades […]

Thermopower Waves from Nanotubes

Heat produced by burning fuel in a carbon nanotube “wick” can force a wave of electrons down the tube, producing electric current. An engineering lab at MIT has made new progress on this technique. Thermopower Waves (from “Daily Planet”) [youtube.com] A clip from an episode of “Daily Planet” on Discovery Channel Canada featuring the research […]

Small Powerful Microbatteries

Size, weight and power limitations have been holding back some areas of technology, like electric vehicles. New, fast charging, lithium ion microbatteries may be about to change that. Small in size, big on power: New microbatteries a boost for electronics – [illinois.edu] Though they be but little, they are fierce. The most powerful batteries on […]

Suction pump to transistor

In the late 1500s and early 1600s the newfound use of glass for windows and continuing expansion of metallurgy was requiring ever increasing amounts of timber for fuel. As nearby forests were diminished, demands for the mining of coal and coke increased. New uses for metals of all kinds added to the need for mining. […]

1789 – Ohm – bio

Georg Simon Ohm was born in 1789 in Germany and was a physicist and mathematician. He is best known for formulating “Ohm’s Law” which states there is a proportional relationship between voltage (electrical “pressure”) and current (electrical flow) that also involves resistance. The formula is voltage = current x resistance. This can be re-arranged to […]

Magnetic Solar Power

An optical battery that collects charge caused by light’s magnetic field may be usable as a power source. Solar power without solar cells: A hidden magnetic effect of light could make it possible – [umich.edu] Light has electric and magnetic components. Until now, scientists thought the effects of the magnetic field were so weak that […]

Commerce in Space

Commerce in space will be driven by the demands of exchange and the economic factors involved. Raw Materials: Air and water are likely to be in high demand and even if they become somewhat abundant, will always remain treasured for their inherent importance. Food will be mostly manufactured locally, assuming you have the raw materials […]