1,407 reputation
1520
bio website msquant.sourceforge.net
location Århus, Denmark
age 49
visits member for 3 years, 11 months
seen Oct 6 at 18:12

(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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Mar
18
revised Why does soap produce more foam when rubbed on a head with hair?
Some copy editing (but there is still room for improvement).
Mar
18
revised Magnetic field of a wire with over 1000 amperes?
Copy edited.
Mar
18
revised Is voltage important when creating a magnetic field?
Copy edited.
Mar
12
revised What is the place of an electromagnetic field in the electromagnetic spectrum?
Copy edited.
Mar
9
revised How was this dot identified as a mystery planet originally (Pluto in this case)?
Copy edited (e.g. ref. <https://en.wiktionary.org/wiki/astrophysicist#Noun>).
Mar
8
revised Charge of an electric wire
Copy edited.
Mar
5
revised Is it possible to avoid the radiation that caused the American flag turned into white on the Moon?
Copy edited. Removed historical information.
Mar
4
revised What is the physics behind a soap bubble?
Copy edited (but the symbol for the wavelength of light seems to be missing). Interpreted "back" as meaning "black" (I think this is clear from the context, especially given away by the last sentence).
Mar
4
revised What is the physics behind a soap bubble?
Copy edited.
Mar
4
revised Why does sound travel faster in iron than mercury even though mercury has a higher density?
Copy edited. Added units.
Mar
2
revised Pouring water in an aircraft while upside down?
Copy edited.
Feb
23
revised Speed of sound at temperatures below 0 °C
Added proper units, etc.
Feb
23
revised Speed of sound at temperatures below 0 °C
Clarified that the unit for T is degree Celcius (this is clear from the answer). Changed away from second person. Copy edited.
Feb
11
revised Speed of sound at temperatures below 0 °C
Copy edited. Used another form of a unit.
Jan
30
revised Why is acceleration expressed as m/s/s?
Copy edited. (its = possessive, it's = "it is" or "it has". See for example <http://www.wikihow.com/Use-its-and-it's>.)
Jan
21
revised Does Super Mario physics work in reality?
Copy edited.
Jan
21
revised If the universe could emerge from nothing, what about physical laws?
Copy edited. Added some context. Removed meta information (this belongs in comments, if any).
Jan
20
revised Has the use of the holographic principle of string theory in condensed matter physics silenced the skeptics?
Added some context. (its = possessive, it's = "it is" or "it has". See for example <http://www.wikihow.com/Use-its-and-it's>.) Removed follow-up question - they belong in comments to the question.
Jan
18
revised When an object casts a shadow, why are there different shades of that shadow?
Copy edited.
Jan
18
revised Very strange shadow phenomenon
Copy edited.