Tags » Interferometry

Feeling the pulse of the space-time continuum.

Humans have known about the force of gravity since ancient times. Yet, we are still exploring its true nature, how it works, and why it works the way it does.

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Feeling the pulse of the space-time continuum

The Copernican
April 17, 2014

Haaaaaave you met PSR B1913+16? The first three letters of its name indicate it’s a pulsating radio source, an object in the universe that gives off energy as radio waves at very specific periods. 1,964 more words

Science & Technology

From Symmetry: "Searching for the holographic universe"

April 08, 2014

Leah Hesla

Physicist Aaron Chou keeps the Holometer experiment—which looks for a phenomenon whose implications border on the unreal—grounded in the realities of day-to-day operations. 1,314 more words

Basic Research

Behind the Curtains of the Cosmos 2: Gravitational Waves

by Shane L. Larson

Nearly every picture you have ever seen of galaxies and nebulae and stars, and virtually everything that we know about the Cosmos, has been obtained with light.  1,950 more words


Keeping that focus sharp

I mentioned a Bahtinov mask in my previous blog, and I’d like to return to that. Bahtinov is the designer of the most popular masks that are inserted in collimated beam in front of the aperture for focusing purposes. 313 more words

Geometrical Optics