There are some fascinating products on the web these days. Here's one I came across recently - sonic soot blowers.
First I found a blog about soot blowers and that in turn referred a lot to sonic soot blowers. Interesting subject .... blowing soot out of boilers using sonic technology. Not exactly household stuff but nevertheless interesting :)
I was then on Facebook the other day and wondered if I might find a sonic soot blowers page there, So I did a quick search and there it was including an interesting video clip that showed just what this amazing sonic technology is all about. It's always fun to learn something new, don't you think?
