New Jersey Scuba Diving

October 17, 2020

This is a Monster

October 17, 2020

Well, it's that time of year again, time to renew the web hosting. And for those of you that don't know, that has become a lot more expensive than it used to be. Fifty dollars a year is now several hundred. Not to mention the price of domain names has gone up ten-fold.

And I just found out that the nice folks at PayPal disabled all my Support buttons, and I never got a notice (although that may be my fault.) In any case, it is all working again now, so if you would like to make a small donation to help defray these costs, it would be greatly appreciated.

Finished stubbing-in all the artificial reef pages, and integrating the dive sites and artificial reefs sections. It actually works better than the old hand-made site. Lots of nice automatic menus everywhere. Over 600 pages, and a lot more to go.

Still finding and fixing bugs, but the basic architecture is sound. I think the best plan is to put in blank pages for everything and get the 'tree' right. Then I can fill in the content, or 'leaves'.

The built-in search works really well; the outboard search in the old site has become balky.

Gargle is already showing interest, even though I am currently discouraging them.

Uncategorized, 10/17/20

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Glass & Ceramics

Delaware Water Gap Bottles

Glass is a hard substance, usually brittle and transparent, composed chiefly of silicates and an alkali fused at high temperature.

Composition and Properties of Glass

Most glass is a mixture of silica obtained from beds of fine sand or from pulverized sandstone; an alkali to lower the melting point, usually a form of soda or, for finer glass, potash; lime as a stabilizer; and cullet ( waste glass ) to assist in melting the mixture. The properties of glass are varied by adding other substances, commonly in the form of oxides, e.g., lead, for brilliance and weight; boron, for thermal and electrical resistance; barium, to increase the refractive index, as in optical glass; cerium, to absorb infrared rays; metallic oxides, to impart color; and manganese, for decolorizing.

More: Glass & Ceramics ...

Disclaimer:

I make no claim as to the accuracy, validity, or appropriateness of any information found in this website. I will not be responsible for the consequences of any action that is based upon information found here. Scuba diving is an adventure sport, and as always, you alone are responsible for your own safety and well being.

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