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  #3091 (permalink)  
Old 25-July-2007, 05:44 AM
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I am hungry!
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  #3092 (permalink)  
Old 25-July-2007, 11:13 AM
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I am hungry!
The first course is served. There's a constellation in your soup. Which one?
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  #3093 (permalink)  
Old 25-July-2007, 04:58 PM
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  #3094 (permalink)  
Old 25-July-2007, 07:17 PM
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No charge for the extra protein. You're up

PS: a pause for a commercial: The 5th Annual Astronomy Challenge announcement
Last edited by hhEb09'1 : 26-July-2007 at 12:10 AM.
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  #3095 (permalink)  
Old 26-July-2007, 01:41 PM
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Thanks.

It is well known that one of the great triumphs of Einstein's General Theory of Relativity came in 1919 when measurements of the deflection of starlight by the Sun's gravity were found to be in agreement with Einstein's predictions.

What is not so well known is that Newton's Theory of Universal Gravitation also predicted the deflection of starlight by the Sun's gravity! And unknown to Einstein, an astronomer actually calculated the amount of that deflection (for a star appearing next to the solar limb during an eclipse).

Who was that astronomer? (Bonus points: When did he make the calculation, and what was the amount of deflection predicted?)
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  #3096 (permalink)  
Old 26-July-2007, 09:02 PM
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Thanks.

It is well known that one of the great triumphs of Einstein's General Theory of Relativity came in 1919 when measurements of the deflection of starlight by the Sun's gravity were found to be in agreement with Einstein's predictions.

What is not so well known is that Newton's Theory of Universal Gravitation also predicted the deflection of starlight by the Sun's gravity! And unknown to Einstein, an astronomer actually calculated the amount of that deflection (for a star appearing next to the solar limb during an eclipse).

Who was that astronomer? (Bonus points: When did he make the calculation, and what was the amount of deflection predicted?)
Johann von Soldner, 1801, 2m/r0 or about 0.875¨. Einsteinś initial paper came up with the same result (1911) and he was accused of plagiarism. The corrected prediction was 1.75¨ (1915). The 1919 results weren´t actually good to prove this but no one noticed
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  #3097 (permalink)  
Old 27-July-2007, 08:24 AM
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Johann von Soldner, 1801, 2m/r0 or about 0.875¨. Einsteinś initial paper came up with the same result (1911) and he was accused of plagiarism. The corrected prediction was 1.75¨ (1915). The 1919 results weren´t actually good to prove this but no one noticed

do you have a Spanish keyboard? some of those characters are hard to make with an English one.
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  #3098 (permalink)  
Old 27-July-2007, 10:50 AM
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Johann von Soldner, 1801, 2m/r0 or about 0.875¨. Einsteinś initial paper came up with the same result (1911) and he was accused of plagiarism. The corrected prediction was 1.75¨ (1915). The 1919 results weren´t actually good to prove this but no one noticed
Correct!
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  #3099 (permalink)  
Old 27-July-2007, 01:57 PM
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and he was accused of plagiarism.
He was accused of plagiarism at the time? Isn't that calculation sorta simple?

PS: no, he was not accused of plagiarism at the time.

Abraham Pais says that Soldner's paper was entirely unknown to the physics community until 1921, when Nobelist Philipp Lenard reproduced it in an attempt to discredit Einstein, and prevent him from winning a Nobel Prize. Apparently, Lenard was a Nazi, and critical of "non-German" science. Still, that is years later, after Einstein had already changed the calculations.
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  #3100 (permalink)  
Old 27-July-2007, 03:38 PM
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do you have a Spanish keyboard? some of those characters are hard to make with an English one.
No just Linux. It doesn´t like apostrophes or full stops.
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  #3101 (permalink)  
Old 27-July-2007, 04:07 PM
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How many me does it require to change a rudder? (It´s a given that there is one spacesuit)
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  #3102 (permalink)  
Old 30-July-2007, 06:08 PM
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Dang, I missed all those astronomy questions!
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  #3103 (permalink)  
Old 02-August-2007, 07:03 PM
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Hmmm, maybe it's time for a really good hint or a question that is a bit less arcane and more obviously astronomy-related?
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  #3104 (permalink)  
Old 05-August-2007, 10:00 PM
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ozark1 are you there?

Dave Mitsky
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  #3105 (permalink)  
Old 06-August-2007, 12:56 PM
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How many me does it require to change a rudder? (It´s a given that there is one spacesuit)
Seven: one to change the rudder, and half a dozen to figure out what the heck you're talking about!
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  #3106 (permalink)  
Old 06-August-2007, 03:16 PM
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Seven: one to change the rudder, and half a dozen to figure out what the heck you're talking about!
Eroica

Down the right lines. To be honest I did expect someone to know a bit of classic Polish scifi.

Anyhow - a quick question in lieu...

Which spacecraft was unsinkable?
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  #3107 (permalink)  
Old 08-August-2007, 02:44 AM
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Ivan "Gus" Grissom's "Molly Brown."
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  #3108 (permalink)  
Old 08-August-2007, 05:05 AM
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M'kay.

What is the Japanese name of the Pleiads?
Subaru...
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  #3109 (permalink)  
Old 08-August-2007, 05:05 AM
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The name of the 10m scope on Mauna Kea...
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  #3110 (permalink)  
Old 08-August-2007, 05:22 AM
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Ivan "Gus" Grissom's "Molly Brown."
Yes - aka Gemini 3

Superluminal´s turn
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  #3111 (permalink)  
Old 08-August-2007, 08:15 AM
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The name of the 10m scope on Mauna Kea...
Keck. And welcome to the forum, big alfie. I suspect, however, that you were posting an answer to this question, which was posted 26 months ago. The quiz has progressed a bit since...

At the moment, we'll all have to wait for Superluminal to post his question. So curious.
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