Welcome to SPDE.INFO, the Speedy Information Site!

This page is a link/map to other sources of information related to color science and its application to real world industrial color control, both visual, totally instrumental (no human intervention), and combinations of both. Even if not interested in color science, one might find some entertainment through the matching practice program and some illusions. That mystical Standard Observer is explained in understandable terms describing its development and function in colorimetry. Documentation of probably the first real digital computer color match is presented. You know, the same process used by the home improvement stores to produce paints matching your samples. You'll be amazed how long ago this work was documented. Visit RPDMS.COM Color Services section.

Interested in web page design? Other links can lead to a better understanding of the ins and outs of web page design using latest XHTML and CSS techniques created to better ensure Internet viability into the future. Detailed examples can be found illustrating the benefits of human coding over that performed by WYSIWYG systems. Maybe you're looking for help with your web site or want to build one on your own. Visit RPDMS.COM "Want your own page?"

For additional information about web pages, early computer and network history, programming or just general data management. Visit RPDMS.COM Computer Services section.

Less interesting of course, but included for the completeness of this index, would be the Penrod family web site and the Corning, Ohio, High School web site with lots of midi music.

Familiar with Northwest Ohio, Sandusky and Erie Counties, or the world famous Castalia Blue Hole or Seneca Caverns? Interested in caves and their connection to various aquifers, then you'll definitely be interested in a newly published research paper, "Determining the source of the water in Crystal Rock and Brewery Caves, Northwest Margaretta Twp., Erie County, Ohio, USA". Ever heard of the Black Swamp? Fossilized remains of aquatic animals indicate it may have extended as far East as Sandusky. Find this and other related articles. Visit HOSEco.

Now a few words about this page. Most certainly you have noticed the visual effect of seeing the page background image through a seemingly translucent text block. Translucency or more specifically, opacity is standardized as part of CSS3. However, browsers have not yet adopted complete support for CSS3 although Firefox and Google Chrome have implemented the opacity property. Unfortunately, Internet Explorer implemented its own "filter" property using different opacity scaling, thus the same coding will not produce similar results among the three most popular Windows browsers.

That being said, IE, Chrome, and Firefox all render this page properly by producing the same transparency illusion. My claim has always been that properly written web pages will in fact, look the same in all up to date browsers strictly adhering to the latest standards, provided of course, one has followed the standards when writing the page code. That is my guiding principle and my pages consistently validate to XHTML 1.0 and CSS3 with two occasional exceptions I'm not willing to give up - embedding MIDI files and the use of marquee property, neither affecting the page appearance. Marquee is planned for CSS3 and embed is coming back in HTML5.

How is the effect seen on this page achieved if not via the opacity property? It is created using two separate images, the original page background image and a second lightened, lower contrast, faded image used as the background for the text blocks. That second image is truly the background behind the text. Both images are fixed at 0,0 with the faded only showing in text boxes. Think of them as being layered one over the other. Pretty clever!

Blank lines are included that allow scrolling down to completely expose the original background. Continuing to scroll on to the bottom will reveal small versions of these two backgrounds for your perusal. If you have any questions or would like help with you own web site, feel free to contact us through the link below. However, do NOT change the subject of the message to avoid its being lost in the shuffle of daily spam.



As always, thanks for visiting my site. Please, come back soon.