Lifeboat Foundation

Hitting a green energy milestone.

Developing a clean (carbon-free), safe and economical form of energy, with abundant, globally distributed fuel to serve humanity for tens of thousands of years: Fusion.

A new project announced last week will start helping close the gap, though. The New Jersey Board of Public Utilities (NJBPU) chose Ørsted of Denmark to build a 1.1 gigawatt wind farm off the coast of Atlantic City. Dubbed (somewhat un-originally) Ocean Wind, the farm will be the biggest of its kind in the US and is estimated to be done by 2024. For comparison, the only wind farm currently operating in the US, off the coast of Rhode Island, has a paltry 30-megawatt production capacity.

Ocean Wind’s 1.1 gigawatts of energy will be enough to power about 500,000 homes. The project is slated to create 15,000 new jobs and generate up to $1.2 billion in additional economic benefits.

As of May of this year, there were 15 proposals in the works for new offshore wind farms along the US east coast (and that doesn’t include projects in California, Hawaii, South Carolina, and New York).

Researchers have come up with a way we could harvest energy from Earth by turning excess infrared radiation and waste heat into electricity we can use.

The concept involves the strange physics of quantum tunnelling, and key to the idea is a specially designed antenna that can detect waste or infrared heat as high-frequency electromagnetic waves, transforming these quadrillionth-of-a-second wave signals into a direct charge.

There’s actually a lot of energy going to waste here on Earth – most sunlight that hits the planet gets sucked up by surfaces, the oceans, and our atmosphere.

Circa 2015

For our modern, technologically-advanced society, in which technology has become the solution to a myriad of challenges, energy is critical not only for growth but also, more importantly, survival. The sun is an abundant and practically infinite source of energy, so researchers around the world are racing to create novel approaches to “harvest” clean energy from the sun or transfer that energy to other sources.

This week in the journal Applied Physics Letters, from AIP Publishing, researchers from the University of Waterloo in Canada report a novel design for electromagnetic energy harvesting based on the “full absorption concept.” This involves the use of metamaterials that can be tailored to produce media that neither reflects nor transmits any power—enabling full absorption of incident waves at a specific range of frequencies and polarizations.

Continue reading “Harvesting energy from electromagnetic waves” »

A loophole in a result from classical electromagnetism could allow a simple device on the Earth’s surface to generate a tiny electric current from the planet’s magnetic field.

It might seem that classical electromagnetic theory would hold few surprises, but two researchers argue that one aspect of received wisdom is wrong. They show theoretically that a device, sitting passively on the Earth’s surface, can generate an electric current through its interaction with the Earth’s magnetic field. The power from the proposed device would be measured in nanowatts, but might, in principle, be scaled up.

A century-old experiment showed that if any electromagnet with cylindrical symmetry (the symmetry of a bar magnet) rotates about its long axis, its magnetic field does not rotate [1]. There is a component of the Earth’s magnetic field that is symmetric around the rotation axis (which is not aligned with the magnetic poles), so according to this old principle, the axisymmetric component does not rotate. Any stationary object on the Earth’s surface sweeps through this component of the field, which is constant at any given latitude.

Entitled “The Problem of Increasing Human Energy — With Special References to The Harnessing of The Sun’s Energy”, it was published by his friend Robert Johnson in The Century Illustrated Monthly Magazine for June 1900 soon after Tesla returned from Colorado Springs where he had carried out an intensive series of experiments from June 1899 until January of 1900.

The exact title of the chapter where he discusses this device is worth giving in its entirety:

Tech Armor is a tech power in Mass Effect 2 and Mass Effect 3’s single-player and multiplayer modes.

The power generates an energy armor suit that boosts the user’s shields.

At three o’clock in the afternoon on September 4, 1882, the electrical age began. The Edison Illuminating Company switched on its Pearl Street power plant, and a network of copper wires came alive, delivering current to a few dozen buildings in the surrounding neighborhood.

Electroactive bacteria were running current through “wires” long before humans learned the trick.