Kai M. Siegbahn's Birth Card: The Ace of Diamonds

In the record

Kai Manne Börje Siegbahn (20 April 1918 – 20 July 2007) was a Swedish physicist who shared the 1981 Nobel Prize in Physics. The birth-card coordinate for April 20 is the Ace of Diamonds — a calendar position, not a forecast of the 1981 Physics prize.

Nobel Prize record

• 1981 The Nobel Prize in Physics — for his contribution to the development of high-resolution electron spectroscopy

The Ace of Diamonds coordinate

Kai M. Siegbahn's birthday maps to the Ace of Diamonds (The Wealth Pioneer). Card Blueprints treats that as a 365-day coordinate: solar value = 55 − (2 × month + day), and the year is unused. It is not a prediction about a Nobel Prize and not a verdict on Kai M. Siegbahn. The card's own language, quoted as system copy rather than biography: You start a resource in motion because you trust you can make and keep value.

Live Ace of Diamonds meaning page

Kai M. Siegbahn in the public record

Kai Manne Börje Siegbahn was born on 20 April 1918 in Lund, Sweden, the son of physicist Manne Siegbahn and Karin Högbom. From 1936 to 1942, Siegbahn studied physics, mathematics, and chemistry at Uppsala University. He received his Ph.D. in Physics from Stockholm University in 1944. Siegbahn was a professor at the Royal Institute of Technology in Stockholm from 1951 to 1954. He joined Uppsala University in 1954, where he remained until his retirement in 1984. He was also President of the International Union of Pure and Applied Physics from 1981 to 1984. In 1981, Siegbahn was awarded the Nobel Prize in Physics jointly with Nicolaas Bloembergen and Arthur Schawlow. Siegbahn received half of the Prize "for his contribution to the development of high-resolution electron spectroscopy." He referred to his technique as Electron Spectroscopy for Chemical Analysis (ESCA); it is now usually known as X-ray photoelectron spectroscopy (XPS).

Summarised from the lead section of the Wikipedia article Kai Siegbahn (CC BY-SA 4.0). No biographical facts were written for this page beyond that article.

Where the record meets the 3 of Clubs

A card is a calendar coordinate, not a cause. What follows sets one line of the card's own published language beside one sentence of the sourced record, paired by a documented rule. It is a resemblance offered for the reader to weigh — not a claim about Kai M. Siegbahn, and not a forecast of a Nobel Prize.

Ability to articulate complex ideas clearly

From 1936 to 1942, Siegbahn studied physics, mathematics, and chemistry at Uppsala University.

Paired on the mind and communication — the domain ♣ governs in this system. Markers in the record: chemistry, mathematics, physics.

Also on the record

1. In 1967, he published a book, ESCA; atomic, molecular and solid state structure studied by means of electron spectroscopy.
2. Siegbahn married Anna Brita Rhedin in 1944.
3. The couple had three sons: Per (born 1945), Hans (born 1947), and Nils (born 1953).
4. Siegbahn died on 20 July 2007 at the age of 89.

Other laureates with this card

• Alfred D. Hershey — 1969 Physiology or Medicine
• Andrea Ghez — 2020 Physics
• Arthur H. Compton — 1927 Physics
• Barbara McClintock — 1983 Physiology or Medicine
• Bernard L. Feringa — 2016 Chemistry
• Bertrand Russell — 1950 Literature
• Brian P. Schmidt — 2011 Physics
• Burton Richter — 1976 Physics
• César Milstein — 1984 Physiology or Medicine
• David J. Wineland — 2012 Physics
• Ei-ichi Negishi — 2010 Chemistry
• Erwin Schrödinger — 1933 Physics
• 18 more laureates share this card.

FAQ

What is Kai M. Siegbahn's birth card?

The Ace of Diamonds. April 20 maps to that card through the public Card Blueprints formula. The year of birth is not used.

Does a birth card predict a Nobel Prize?

No. These pages are coordinates, not fortune-telling. A birth card names a calendar day in a 52-card year. It does not forecast prizes, character, or fate.

Where do Kai M. Siegbahn's dates come from?

Birth date 1918-04-20 is the Nobel Prize API v2.1 day-precision date, verified against Wikidata P569 (CC0, day precision, Gregorian preferred). The two sources match. Year-only Nobel dates and Nobel↔Wikidata conflicts are dropped, not guessed. Page hooks and evidence come from the Wikipedia REST summary (CC BY-SA 4.0).

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