Tag Archives: Technology

Mystery Atomic Jet Flying Saucer

Kids, it’s here! Watch it sail away up in the air – you can make it fly higher than a tall building – it will do five airplane stunts, too. Get several of them and have flying saucer contests! Even Dads go crazy over it.

Be the first in your neighborhood and amaze your friends!

Free Color Film!

They Laughed When I Sent Away For Free Color Film
… but now all my friends are sending away too!


“Free Color Film”

EricHatheway.com Tenth Anniversary

Ten years ago today, I launched my website and the blog that I named The Clog. With the idea that the internet dislikes a site that rarely changes, my goal was to do a blog entry each and every day. I’m happy to say, after 10 years, that goal has been met and will continue to be met!

So, here are some statistics for the past 10 years:

3,654 consecutive daily blog posts!

4,505 images posted on the web!

22,100 tweets sent on Twitter!

Cheers! And here’s to another 10 years!

Dancing Robot Valued At $100,000

Patrick S. Rizzo, Detroit auto worker, puts finishing touches to a mechanical man he built in his spare time during the past eight years. His son, Vincent, eight, watches the robot, which is valued at $100,000. It walks alone and can dance a jig.

Mr. Rizzo subsequently lost his investment when his son, Vincent, created The Robot Dance. And the rest is history.

Hey Man, Nice Shot!

They aimed. They fired. They heard an explosion. In 2008, the U.S. successfully shot down its own spy satellite about 250 miles above the earth.

Officials are confident that they destroyed the fuel tank which held the highly toxic material hydrazine. Some of the fuel tank debris made landfall but was of no concern (that we know of).

Nice shooting!

I Am (Was) A Camera

Here are some old analog photography notes from days gone by. Still relevant, but without the techno terminology and the acronyms associated with today’s modern digital cameras. In fact, you might be interested in the analog definition of photography. Then, following that are some more analog notes on photography. To digitize the text, just substitute the word sensor where appropriate.

The Analog Definition of Photography

The fundamental physical principle of photography is that light falling briefly on the grains of certain insoluble silver salts (silver chloride, bromide, or iodide) produces small, invisible changes in the grains.  When placed in certain chemical solutions known as developers, the affected grains are converted into a black form of silver.

When a photograph is taken with a camera, light reflected from the object passes through the shutter, diaphragm, and lens to form a real inverted image.  For the brief period during which the shutter is open, this image falls on the surface of a film or plate sensitized by silver salts and causes an invisible latent image to be recorded on it.

An Analog Explanation of the Camera

A camera consists essentially of a box carrying a lens, diaphragm, and shutter that are arranged to throw an image of the scene to be recorded onto a sensitive film or plate. The lens is usually made up of several components. It forms a real, inverted image of the object. In the popular 35-mm cameras the focal length is typically 50 mm (2 in), but it can be shorter or longer according to the size of the camera. In the focusing mechanism provision is made for moving the lens backward or forward to focus the image on the film. Three main methods are used to determine the position of the lens for correct focus: focusing scale, range finder, and reflex finder.

Two types of shutters are commonly used. The between-the-lens shutter is mounted between the components of the lens. The focal-plane shutter consists of a roller blind containing a slit that moves rapidly across the plane in front of the film. In popular cameras the shutter provides a range of exposures from about 1 second to 1/1,000 of a second. The diaphragm may also be placed between the components of the lens. It provides a circular hole of variable size that regulates the amount of light that reaches the film.

If the light is weak, or if a short exposure is required, the diaphragm is opened wide to admit sufficient light. Under good lighting conditions with moderate exposures the diaphragm is set to a smaller aperture, thus reducing the amount of light reaching the film. The smaller aperture can also reduce effects of aberrations and of any error in focusing, thus producing a sharper picture (i.e., depth-of-field).

A Chemical Is A Chemical Is A Chemical

The interwebs tell us that, in chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties.

Chemicals cannot be separated into components by physical separation methods. Chemical substances are often called ‘pure’ to set them apart from mixtures. Uhhh … well … anyway, this is what advertising tells us about this (by virtue of artists) …