myKB.com has recently moved into new office space in Scottsdale, Arizona. The building we've moved into is newly constructed and is pretty fancy looking with an all glass exterior. Our entire office is frame with external windows, needless to say we have a lot of light.

Anyway, to the fun fact.

Due to the building shifting and settling, one of the huge sheets of glass has cracked. being lazy, and not wanting to walk outside the question was asked. "I wonder if it's dual pain safety glass?". The Answer: Get a lighter, hold it up to the glass.

Any old piece of glass will show you two flame reflections. This is due to one reflection from the front of the glass, and another from the other side of the glass.

If it's dual pane glass, you'll actually see four flame reflections. Once for each side of "both" pieces of glass that have been sandwiched together.

See, I told you it was useless information ...