In the process of getting my refrigerate license, I had it pounded it into my head that the method by which CFC’s (such as Freon) destroyed the ozone hole was well understood. So I got a chuckle of this….
But chlorine peroxide is a difficult molecule to work with. Extremely unstable by sea-level laboratory standards, it’s Click Here to continue reading.

First and foremost, I apologize to Laura for neglecting her comments. I always appreciate comments, and I always have lots of good intentions about responding to them, and even responding promptly. Unfortunately, I’m not very good at the follow through. I have just responded to them, but it was long over-due. Sorry, Laura! I really Click Here to continue reading.

Let’s give the first link to Alice the Architect as she explains what happens to most pieces of modern articture that are considered news worthy.
In the actual news department, did you know that the world’s most heavily endowed prize for architecture only goes to architects who build in areas with a lot of Muslims? That Click Here to continue reading.

Found this comment on a civil engineering forum where people were discussing nail guns….
Gun nails are often marketed with different shank diameters for the same length, just like in the USA you buy “box” or “common” nails. The tests to determine pull-out strength and lateral strength of a joint between two pieces of wood result Click Here to continue reading.

I came across a description of Previous Concrete here. Apparently it is a kind of concrete that is designed to let water pass through. There is picture on the site of someone pouring a glass of water right through a chunk of this concrete. This extreme permeably is necessary as the primary proposes of this Click Here to continue reading.

I always thought that the way you should treat your rechargeable batteries should depend on the type of battery that you are using. I thought that Nickel-Metal Hydride and Nickel-Cadmium rechargeable batteries should be completely drained down before reusing. On the other hand, Lithium Ion should never be drained all the way because that Click Here to continue reading.

This is the type of thing that is important to keep in mind when buying a chainsaw…..
One design feature you need to look at very carefully is the handle bar and how it is mounted to the saw. I own an 046 Magnum Stihl, which is supposed to be one of Stihl’s upper end, “pro” Click Here to continue reading.

We have gone from this….

Click here for the picture in its original glory.
And this….

Click here for the picture in its original glory. It broke my heart to cut it down to reasonable size.
To this….

Click here if you to see the original size.
Part of the blame for this decline lies with the Click Here to continue reading.

A lot of people don’t believe in the invisible hand. The rational always have difficulty believing in what they cannot see. Even those that profess to believe in this mysterious hand often have no understanding of how it works.
I don’t suppose I can lay claim to full understanding of the mysterious nature of the invisible Click Here to continue reading.

Thomas Dietz has been putting out a number of excellent technical juggling clips lately. They’re all roughly equal in quality, though none of them are as good as Thomas Dietz 11 promises to be. Well worth checking out if you’re into technical juggling.
Thomas Dietz Clip 5
6 ball tricks non-stop for several minutes with no drops.
Thomas Click Here to continue reading.