Category Archives: Relativity

Physics at 13 TeV – Cranking Up the LHC

A composite picture showing inside the underground tunnel at CERN, and a small portion of the giant particle accelerator in artificial colours, with the words 13 TeV superimposed on it. Image: NaturPhilosophie
A Vernesque Feat of Human Engineering

Deep down, in huge subterranean caverns… Underneath the Franco-Swiss border… 300 feet underground… lies a beast of unprecedented power… and mystery.  The Large Hadron Collider (LHC) that man summons to  explore the uncharted corners of the sub-atomic realm…  After two years of a deep slumber, the mighty beast has awoken…

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The World Outside My Window… What a Window!!

What a World!!

Amazing timelapse footage of the Earth (including aurorae, lightning and city lights) as seen from the International Space Station.  Just mesmerizing…

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Where The Streets Have No Name

A computer-generated drawing based on a photograph from a typical street in Saragossa, in Spain. Image: NaturPhilosophie
Addressing the World

About four billion people on our planet actually live in places with no house numbers,  no street names, or without anything that constitutes a proper address.  They are effectively off-the-map, with no voting rights or access to public utilities.  A new company called What3Words proposes to revolutionize that…

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Geothermics and Gravity – The IRENA Global Atlas for Renewable Energy

A satellite colour map taken from the IRENA Global Atlas for Renewable Energy - Free Air Anomaly Map.
Eye on the Energy Sources of the Future

Geothermal energy prospectors have long used gravity meters in their search for the right subsurface characteristics.  But these have been point measurements.  GOCE now provides this information across the World at a resolution never before achieved on that scale. 

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That Mysterious Missing Matter – Cocktail Party Physics

A 3D animation showing dark matter creation and the large scale structure of the Universe.
Dark Matter

“Dark matter?”  You cannot see it.  But there is something there.  As for what it is, it’s anybody’s guess!  Dark matter does not interact with light.  At all.  Which makes it difficult to detect.  But if you cannot see it?  How do you know it is in fact there?”  Well, it does interact with gravity, and as it does so it bends the path of any light ray passing nearby...

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The Real-Life Space Twin Paradox

A photograph featuring twin astronauts Mark and Scott Kelly in their NASA uniform.
Twin Astronauts

A ground-breaking one-year space mission involving twin astronauts Mark and Scott Kelly should help doctors, scientists and mission planners better understand the physical and psychological impacts of a long-duration spaceflight.

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The Field Equations of General Relativity

An artist's impression of the Earth's gravity field as described in Einstein's General Relativity.

Keeping It Relatively Simple

The Einstein Field Equations of General Relativity are vast and complex, but they can be written with deceptive simplicity. 

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