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In 2004, physicist and science fiction author Gregory Benford calculated that a concave rotating Fresnel lens 1000 kilometres across, yet only a few millimeters thick, floating in space at the L 1 point, would reduce the solar energy reaching the Earth by approximately 0.5% to 1%. [26] The cost of such a lens has been disputed.
In May 2012, the vessel became the first solar electric vehicle ever to circumnavigate the globe taking 584 days between 2010 and 2012. [3] The boat was renamed Race for Water in 2015, after the name of the foundation which then operated the vessel and was dedicated to water conservation missions and to protect the oceans from plastic pollution ...
Solar gravitational lens point, on a logarithmic scale. A solar gravitational lens or solar gravity lens (SGL) is a theoretical method of using the Sun as a large lens with a physical effect called gravitational lensing. [1] It is considered one of the best methods to directly image habitable exoplanets.
The lighthouse's beacon remained a first-class navigational light until August 1927 when the Barnegat Lightship was anchored 8 nautical miles (15 km; 9.2 mi) off the coast. This prompted the automation [broken anchor] and replacement of the first-order lens with a gas blinker. As a result, the tower's light was reduced by over 80 percent.
FOCAL (an acronym for Fast Outgoing Cyclopean Astronomical Lens) is a proposed space telescope that would use the Sun as a gravity lens.The gravitational lens effect was first derived by Albert Einstein, [1] and the concept of a mission to the solar gravitational lens was first suggested by professor Von Eshleman, [2] and analyzed further by Italian astronomer Claudio Maccone [3] and others.
The Hatch Solar Energy Center is a 5.88 MW p (5.0 MW AC) photovoltaic power station. It was built by Blattner Energy using 84 dual-axis trackers and Amonix 7700 concentrator photovoltaics (CPV) panels, each of which contains 7,560 Fresnel lenses to concentrate sunlight 500 times onto multijunction photovoltaic cells .
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