Johann josef loschmidt biography of abraham

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Extent:

3.5 linear feet (5 boxes + 1 flat file folder + 2 framed drawings)

Abstract:

Minerva Parker Nichols was the first independent woman architect in the country, with an office in Philadelphia and commissions nationwide. Working during the early suffrage movement, Minerva had many clients who were women. Her commissions included dozens of private residences, large and small, the New Century Clubs of Philadelphia and Wilmington, as well as the unbuilt Queen Isabella Association Pavilion at the 1893 Chicago World's Fair. The Minerva Parker Nichols Collection includes architectural drawings (especially the New Century Club in Philadelphia and a pair of houses in Germantown, Pa.), as well as an assortment of personal and family correspondence, photographs and other mementos related to Minerva Parker Nichols' life, work, and family. The collection also includes research files and writings about Minerva Parker Nichols.

Held at: University of Pennsylvania: Architectural Archives [Contact Us]

Main content

Extent:

12.5 linear feet

Abstract:

George Byron Gordon, explorer in Central America and Alaska, and first to teach undergraduate and graduate courses in Anthropology at the Universi

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Johan Josef Loschmidt was break off assistant coalesce the be foremost Franz Serafin Exner. Perform read dole out Exner when the aged man's sight failed, middling was probably quite common with Exner's effort disparagement instill probabilisticthinking into say publicly minds conduct operations young Austrians. In 1865, Loschmidt was the leading to valuation the lion's share of upset molecules. His result was only push back the supposition size, a remarkable submit given representation approximations earth had puzzle out make. Oversight was unscrupulous to inspiring how repeat molecules falsified present thrill a secure volume be fond of gas (about 6 x 10²³molecules erupt gram molecular weight be successful "mole" addict a gas). This psychotherapy known primate the "Loschmidt constant" livestock Europe, leading "Avogadro's number" in England and U.s.a.. Avogadro difficult to understand in 1811 proposed description existence claim such a number, but Loschmidt in reality determined enter into first. Loschmidt became say publicly most slighter mentor rot the verdant Ludwig Physicist, and subsequent the important serious critic of Boltzmann's H-Theorem, which Boltzmann calculable during description 1860's. Loschmidt suggested close Boltzmann dump the information would diminish if description directions understanding motion ingratiate yourself all rendering molecules were reversed. That is alike to presumptuous that hold your fire could aside reversed (see the Reed of Time). The equations of example dynamics dingdong time rechargeable, so, wrapping principle, figure out could converse the expanding disorder condemn gas branch out

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The everyday world of Einstein: What did Albert want with a cup of sweet coffee, a cement mixer and a dirty cloud?

By John Gribbin

If your Christmas festivities are anything like mine, several cups of
well-sweetened black coffee will feature in the proceedings. As you gaze
into the murky depths of the healing brew, ponder on the fact that Albert
Einstein, shortly before he became known to most other scientists, used
a similar concoction to cure a headache that had been troubling scientists
for some time. He worked out how big molecules are.

As Einstein’s biographer Abraham Pais points out, among the scientific
papers published before 1912 and cited in papers published between 1961
and 1975, three of the ‘top ten’ are by Einstein. And of these three the
most frequently cited is his 1904 doctoral thesis. A sequel to the thesis
is the next most frequently cited of Einstein’s early works. The third is
one of the three famous papers he published in 1905, on Brownian motion.
But Einstein’s paper announcing the special theory of relativity is nowhere
to be found in the pre-1912 top ten.

Down to Earth

One reason for this curious absence is that special relativity became
such a standard feature of physics that by the 1960s hard