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Parker Solar Probe by
Richard D. Saam
The Eugene Parker Solar Probe has just launched
to investigate close up solar magnetic and electric fields.
In his book:
"Conversations on Electric and...
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2 |
1,414 |
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simple math question about orbital motion by
No Name
An acceleration of an orbiting body, in a central force, is defined as:
a(r,v) = -k/r^2(1 + v^2/c^2)
k = GM = const, v = dr/dt = r'
what is the precession...
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1 |
1,360 |
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7 |
1,434 |
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0 |
1,504 |
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Missing matter found in the cosmic web by
Nicolaas Vroom
The article "Missing matter found in the cosmic web" in Nature of 21
June 2018 (See https://www.nature.com/articles/d41586-018-05432-2)
Starts with the...
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8 |
2,361 |
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alternative to disposing of old library contents by
Phillip Helbig (undress to reply)[_2_]
It seems that some university libraries are in the process of getting
rid of journals, books, and so on, at least those which are not
available electronically....
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0 |
1,593 |
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IAU: Hubble-Lemaitre Law? by
Steve Willner
The IAU is considering recommending that the expansion of the
universe be referred to as the "Hubble-Lemaitre Law" instead of the
"Hubble Law." More details,...
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4 |
1,719 |
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Milliquas v5.4 released by
Eric Flesch
The Million Quasars (Milliquas) catalogue presents a new release,
v5.4 which includes all published quasars to 15 October 2018. The
long-term intent is to...
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0 |
1,471 |
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"Universe Not Expanding" by
Phillip Helbig (undress to reply)[_2_]
In article ,
Lawrence Crowell writes:
"The scientists carefully...
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0 |
1,295 |
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interesting dark-matter candidate by
Phillip Helbig (undress to reply)[_2_]
I'm now at a cosmology conference:
https://indico.cern.ch/event/736594/overview
One reason to go to a conference is to hear about interesting things one...
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2 |
1,317 |
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Spaceship Oumuamua by
jacobnavia
Oumuamua is leaving us at high speed.
Humans try to follow it with the VLT, and they report that the thing...
is accelerating.
Accelerating?
When I first...
( 1 2)
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November 9th 18 03:35 AM
by No Name
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12 |
2,998 |
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Axion Dark Matter by
Steve Willner
Just want to mention today's colloquium on the subject. It's
available at
https://www.youtube.com/watch?v=UUEEIaVSVlE
At least I hope that link will...
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0 |
1,403 |
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1 |
1,489 |
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0 |
1,441 |
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dark matter hypothesis by
No Name
aIs it possible that the missing mass, the 'dark matter',
consists of two generations of burned out stars?
These would be short lifetimes, hence large...
( 1 2)
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17 |
2,713 |
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library work: where is paper I? by
Phillip Helbig (undress to reply)[_2_]
The paper
http://adsabs.harvard.edu/abs/1965SvA.....8..854D
@ARTICLE { VDashevskiiYZeldovich65a ,
AUTHOR = "V. M. Dashevskii and...
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3 |
1,657 |
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0 |
1,624 |
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0 |
1,545 |
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0 |
2,075 |
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LIGO sensitivity compared with the human eye by
Jos Bergervoet[_3_]
Recently in another newsgroup (nl.wetenschap) the question
came up of LIGO's sensitivity compared to the human eye.
a) LIGO can (easily) see a source at one...
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4 |
2,056 |