Tag Archives: Gravity

Gravimeter Design Improvements

Posted on November 16, 2016 by PlatoHagel

S. Abend and E. Rasel/Leibniz Univ. of Hannover Gravity in hand. A compact gravimeter uses an atom chip to generate a dense cloud of ultracold atoms. The atoms are released and fall down through a series of laser pulses, which … Continue reading →

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Evolved Laser Interferometer Space Antenna

Posted on June 8, 2016 by PlatoHagel

View of amplified effects of a + polarized gravitational wave (stylized) on eLISA laser beams / arms paths. Detector noise curves for LISA and eLISA as a function of frequency. They lie in between the bands for ground-based detectors like … Continue reading →

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The Extra Dimensions

Posted on August 28, 2014 by PlatoHagel

The weakness of gravity compared to the other subatomic forces is a real mystery. While nobody knows the answer, one credible solution is that gravity has access to more spatial dimensions than the other three known forces. In this video, … Continue reading →

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Lawrence Krauss – Debate in Stockholm, 2013

Posted on October 9, 2013 by PlatoHagel

A discussion about the definition of nothing. And the relation of philosophy and theology to science. Attendees are Lawrence M Krauss, Bengt Gustafsson, Åsa Wikforss, Stefan Gustavsson and Ulrika Engström. Moderator: Christer SturmarkLawrence Krauss – Debate in Stockholm, 2013 See: … Continue reading →

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The LIGO and Virgo Gravitational-Wave Detectors

Posted on May 4, 2013 by PlatoHagel

An artist’s impression of two stars orbiting each other (left). The orbit shrinks as the system emits gravitational waves (middle). When the stars merge (right), there is a resulting powerful emission of gravitational waves. [Image: NASA] The LIGO and Virgo … Continue reading →

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Gravimetry

Posted on October 25, 2012 by PlatoHagel

Gravity map of the Southern Ocean around the Antarctic continentThis gravity field was computed from sea-surface height measurements collected by the US Navy GEOSAT altimeter between March, 1985, and January, 1990. The high density GEOSAT Geodetic Mission data that lie … Continue reading →

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Brian Clegg: Gravity

Posted on July 17, 2012 by PlatoHagel

A history of gravity, and a study of its importance and relevance to our lives, as well as its influence on other areas of science.  Physicists will tell you that four forces control the universe. Of these, gravity may the … Continue reading →

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Gravimetry

Posted on November 14, 2010 by PlatoHagel

For the chemical analysis technique, see Gravimetric analysis. Gravity map of the Southern Ocean around the Antarctic continent Author-Hannes Grobe, AWI This gravity field was computed from sea-surface height measurements collected by the US Navy GEOSAT altimeter between March, 1985, … Continue reading →

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Defining the Space your Living In

Posted on May 7, 2009 by PlatoHagel

The general theory of relativity is as yet incomplete insofar as it has been able to apply the general principle of relativity satisfactorily only to gravitational fields, but not to the total field. We do not yet know with certainty … Continue reading →

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Kip Thorne on Space Place Live and Cosmc Colors

Posted on December 8, 2007 by PlatoHagel

The most important thing is to be motivated by your own intellectual curiosity. KIP THORNE Click here to watch Kip Thorne on Space Place Live. The “Color of Gravity to Sound” forces perspective. What can I say? It becomes an … Continue reading →

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