Friday will be increasingly cloudy with a high of forty-six.
On this day in 1895, a profound discovery:
….physicist Wilhelm Conrad Rontgen (1845-1923) becomes the first person to observe X-rays, a significant scientific advancement that would ultimately benefit a variety of fields, most of all medicine, by making the invisible visible. Rontgen’s discovery occurred accidentally in his Wurzburg, Germany, lab, where he was testing whether cathode rays could pass through glass when he noticed a glow coming from a nearby chemically coated screen. He dubbed the rays that caused this glow X-rays because of their unknown nature.
On 11.8.1870, a first for America:
1870 – First National Weather Forecast Published
On this date Increase Lapham recorded the first published national weather forecast, calling for “high winds and falling temperatures for Chicago, Detroit and the Eastern cities.” [Source: History Just Ahead: A Guide to Wisconsin’s Historical Markers edited by Sarah Davis McBride]
Scientific American‘s daily trivia question asks about a patent. (Clicking on the question leads to its answer.)