Dirk Polder - AbsoluteAstronomy.com

Dirk Polder

Overview

Dirk Polder was a Dutch physicist

Physicist

A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

who, together with Hendrik Casimir

Hendrik Casimir

Hendrik Brugt Gerhard Casimir FRS was a Dutch physicist best known for his research on the two-fluid model of superconductors in 1934 and the Casimir effect Hendrik Brugt Gerhard Casimir FRS (July 15, 1909 in The Hague, Netherlands – May 4, 2000 in Heeze) was a Dutch physicist best known...

, first predicted the existence of what today is known as the Casimir-Polder force, sometimes also referred to as the Casimir effect
Casimir effect
In quantum field theory, the Casimir effect and the Casimir–Polder force are physical forces arising from a quantized field. The typical example is of two uncharged metallic plates in a vacuum, like capacitors placed a few micrometers apart, without any external electromagnetic field...

or Casimir force. He also worked on the similar topic of radiative heat transfer at nanoscale.

Q. H. F. Vrehen, Dirk Polder, Levensberichten en herdenkingen (Koninklijke Nederlandse Akademie van Wetenschappen, 2002), pp. 57–63.

Quotations

I, too, sing America. I am the darker brother. They send me to eat in the kitchen When company comes, But I laugh, And eat well, And grow strong.

"I, Too, Sing America," in the magazine Survey Graphic (March 1925); reprinted in Selected Poems (1959)

They'll see how beautiful I am And be ashamed — I, too, am America.

"I, Too, Sing America," in the magazine Survey Graphic (March 1925); reprinted in Selected Poems (1959)

The night is beautiful,So are the faces of my people.

"My People," in the magazine Poems in Crisis (October 1923); reprinted in The Weary Blues (1926)

I've known rivers: I've known rivers ancient as the world and older than the flow of human blood in human veins. My soul has grown deep like the rivers.

"The Negro Speaks of Rivers," from The Weary Blues (1926)

I've known rivers: Ancient, dusky rivers. My soul has grown deep like the rivers.

"The Negro Speaks of Rivers," from The Weary Blues (1926)

The stars went out and so did the moon.The singer stopped playing and went to bedWhile the Weary Blues echoed through his head.He slept like a rock or a man that's dead.

"The Weary Blues," from The Weary Blues (1926)

Way Down South in Dixie(Break the heart of me)They hung my black young loverTo a cross roads tree.

"Song for a Dark Girl" (l. 1-4), from Fine Clothes to the Jew (1927)

Love is a naked shadowOn a gnarled and naked tree.

Song for a Dark Girl (l. 11-12), from Fine Clothes to the Jew (1927)

While over Alabama earthThese words are gently spoken:Serve — and hate will die unborn.Love — and chains are broken.

"Alabama Earth (at Booker Washington's grave)," from the anthology Golden Slippers: An Anthology of Negro Poetry for Young Readers (1941), ed. Arna Bontemps

Hold fast to dreamsFor if dreams dieLife is a broken-winged birdThat cannot fly.

"Dreams," from the anthology Golden Slippers: An Anthology of Negro Poetry for Young Readers, ed. Arna Bontemps (1941)

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