Posted tagged ‘Science’

Fossils at Park View School

August 17, 2017

A while ago I found a website that explores fossils in the architecture of Washington, D.C. by Christopher Barr. The site is organized by geological periods and shows examples of fossils that are in stone used in local buildings. I was immediate drawn to the sections on Sacred Heart Church and the Unification Church on 16th Street.

But as I reviewed the site, I suspected that we would also have fossils in the limestone used at the Park View School — and after inspecting the school, my hunch was right. As near as I can tell, the limestone appears to be Indiana Limestone from the Mississippian period. Below are photos of some of the fossils I found at the school.

(An area of trace fossils or, more technically, “ichnofossils”. These are located on the north side of the entry doors on Warder Street.)

(The structures that resemble netting are typically fenestrate bryozoans.)

Science Saturday: Scientists Keep Water Liquid Far Below Zero Degrees

February 6, 2010

I know this topic has nothing to do with the neighborhood. In fact, it has nothing to do with the City. All that aside, I really enjoy science news and thought others might too. I won’t promise to make this a regular feature on this blog, but since I generally don’t post on weekends I thought sharing science related articles on Saturday every now and again wouldn’t be such a bad thing.

The news I found interested this week I heard on NPR yesterday. The two key discoveries shared in the story were that a “scientific team found that dust-free water on a smooth, clean surface will drop well below 32 Fahrenheit (zero Celsius) before it freezes” and that “on a positively charged surface, the water freezes from the bottom up, and on a negative surface, the water freezes from the top down.”

You can read a fuller article or listen to the feature from the NPR Web site.

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