Max Planck (Wikipedia) Max Karl Ernst Ludwig Planck ForMemRS (English: /ˈplæŋk/, German: [maks ˈplaŋk];23 April 1858 – 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.
DeBay’s Slough was historically the main stem of the [Skagit] river, but was converted to a backwater slough in the early 1900’s.