Portland State barometer reaches for the sky, and the record books Discarded glass pipes, off-the-shelf trusses and a vision propelled PSU instrument tech Tom Bennett to build a 40+foot barometer in ...

Q. I have a hand-carved barometer that is not in working condition. It 30 inches tall and is thought to be from Germany. What can you tell me about its history and value? – L.M. A. There are all sorts ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...