Entries by Andy

Neutral Density Filters

The main purpose of using neutral density (i.e., ND) filters is to reduce the amount of light that can pass through the lens. As a result, if a shutter speed is kept the same, after adding a neutral density filter, a larger aperture must be used to obtain the same exposure. Similarly, if an aperture […]

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All of Our Empty Jars

I just find this fascinating. It is a video composed of still shots (shot with a camera not a video cam), of long exposure shots. So each shot may be say 10 secs long, yet its captured into a single shot, that could then last forever or a split second. And combined in a carefully […]

The Great Schlep

Sarah Silverman in “The Great Schlep” The Great Schlep from The Great Schlep on Vimeo.

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Open White Spaces for Everyone

A fight for universal Internet access is being waged in Washington over spectrum white spaces — empty frequencies between television channels that have the potential to connect millions to the information superhighway. The powerful corporate lobby would rather hoard this spectrum for themselves. The Federal Communications Commission now faces a critical choice: Open this spectrum […]

APOD: 2004 September 26 – Looking Back on an Eclipsed Earth

APOD: 2004 September 26 – Looking Back on an Eclipsed Earth Here is what the Earth looks like during a solar eclipse. The shadow of the Moon can be seen darkening part of Earth. This shadow moved across the Earth at nearly 2000 kilometers per hour. Only observers near the center of the dark circle […]