1,550 reputation
1622
bio website msquant.sourceforge.net
location Århus, Denmark
age 50
visits member for 4 years, 10 months
seen yesterday

(Last updated 2014-08-23.)

I am mostly interested in making scientifically important observations, like timing occultations of or by Solar System bodies and measuring variable stars.

I am also interested in citizen science projects and participate in some of them, like Galaxy Zoo.

I have been an amateur astronomer since 1975 and have worked at the European Space agency's (ESA) technical centre in Holland, ESTEC, on the ARISTOTELES mission, an earth gravity mapping mission.

Approximate coordinates: 55°20 N, 10°20 E


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Feb
13
revised What happens before a radioactive element decays?
Copy edited.
Feb
13
revised What happens before a radioactive element decays?
Copy edited.
Feb
13
revised What happens before a radioactive element decays?
Copy edited. Added some context.
Feb
6
revised Why do most formulas in physics have integer and rational exponents?
Copy edited (e.g. ref. <https://en.wiktionary.org/wiki/let%27s#Contraction>). Added some context.
Feb
6
revised Why do most formulas in physics have integer and rational exponents?
Copy edited (e.g. ref. <http://english.stackexchange.com/questions/2429/can-doubt-sometimes-mean-question>).
Jan
31
revised Can orbital energy be a source of perpetual power?
Copy edited. Removed meta information (this belongs in the user profile).
Jan
31
revised Can orbital energy be a source of perpetual power?
Copy edited. Removed meta information (this is implied).
Jan
18
revised What does the equation of a refracted ray trace mean?
Copy edited (but more work may be needed near "to a refracted vector").
Jan
18
revised Why would a black hole explode?
Copy edited. Added some context.
Jan
10
revised Wavelength used in manufacturing of integrated circuits (IC)
Copy edited. Introduced abbreviations "PSM" and "OPC".
Jan
10
revised Wavelength used in manufacturing of integrated circuits (IC)
Copy edited.
Jan
10
revised Where does the joules come from (ideal gas constant)?
Copy edited (e.g. ref. <http://en.wikipedia.org/wiki/Joule>).
Jan
9
revised What is the actual meaning of the density operator?
Copy edited (e.g. ref. <https://en.wiktionary.org/wiki/let%27s#Contraction>). (its = possessive, it's = "it is" or "it has". See for example <http://www.wikihow.com/Use-its-and-it's>.)
Jan
9
revised What is the actual meaning of the density operator?
Copy edited.
Dec
27
revised In physics, what is the importance of distinguishing between a matrix and a group?
Copy edited. Added some context.
Dec
8
revised Do the number of possible microstates increase as temperature decreases?
Copye edited (but more work near "change in entropy is more" may or may not be needed).
Dec
6
revised If photons don't have charge, why are they deflected by charged black holes?
Copy edited.
Dec
4
revised How is wind created?
Copy edited (but more work is needed near "I mean"). Removed meta information (this belongs in comments, if any).
Dec
4
revised How is wind created?
Copy edited (this is not Yahoo Answers, <http://knowyourmeme.com/memes/how-is-babby-formed>, but perhaps an even better verb exist? - "come about"?).
Dec
1
revised Does the mass of an electron change with its “energy state”?
Copy edited. (its = possessive, it's = "it is" or "it has". See for example <http://www.wikihow.com/Use-its-and-it's>.)