Category: Technology

Winning the war on Greenwater Algae

For about 4 months, I fought a war against greenwater algae in our big aquarium, home of our pet oscars. If you don’t know what an oscar is, they are the most cantankerous, petulant, opinionated tropical fish ever created and they make great pets. They are members of the cichlid family, and are extremely smart, even trainable.

My oscar, Galadrial, showing her friendlier side

But this article is not about oscars. It’s about their unwanted tankmate: greenwater algae. This algae was so thick I couldn’t even see the fish! They would swim in and out of the green gloom. There are those who will tell you that greenwater algae is good for your fish, and indeed, it may be. But it doesn’t look very good in your living room, and I wanted to be able to see the oscars! So I determined to rid my tank of the ugly, smelly stuff.

This looks a lot like my tank did. Try to imagine 120 gallons of this algae soup in your living room!
greenwater.jpg
photo © Charles Yu, from an FAQ article on algae by George Booth

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Symbol fonts not displaying in MS Producer

A client gave me a powerpoint presentation recently that contained a lot of symbols: arrows, greater-than-or-equal-to signs, and the like. They showed up fine in the powerpoint, but once incorporated into an MS Producer presentation, and published, they disappeared, or changed into letters.

It turns out the reason for this is that fonts are embedded into powerpoint presentations, but Producer is creating HTML pages, which of course are dependent on the end viewer’s computer for fonts, and on browser options for default font preferences.

When inserting symbols in powerpoint, (on a PC) it is not immediately obvious that you are switching fonts. By default, when you select “Insert Symbol” the font that comes up highlighted in the dialog is “Symbol” which does not always show up in a finished Producer presentation. Select another font, like Arial or Times New Roman and choose one of their symbols – they have almost as many.

The alternative would be to position graphics of the symbols in place of temperamental text characters. However, this isn’t such a great solution, since you can’t place inline graphics inside text boxes, so the symbols won’t stay in postion, especially if the font size varies a bit depending on the user’s computer.

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