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chornedsnorkack
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chornedsnorkack
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2009-Feb-15
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2013-May-23
09:40 PM
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grapes
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Yesterday,
06:43 AM
grapes
replied to a thread
How practical is beach soccer?
in
Off-Topic Babbling
Sorta Here's a link that deals wih last month's sixth annual world cup of quidditch: http://worldcupquidditch.com/
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11 replies | 109 view(s)
2013-May-23,
09:40 PM
chornedsnorkack
replied to a thread
Planet with oceans of alcohol
in
Space/Astronomy Questions and Answers
Agreed. But how about atmosphere with methane? Ammonia is easy. It has a narrow range of stability and easily decays to nitrogen and hydrogen. ...
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17 replies | 232 view(s)
2013-May-23,
10:19 AM
grapes
replied to a thread
Salem/Dallas Oregon, Activity
in
Geology & Planetary Surfaces
A 1.5! North Carolina was thought to be geologically inactive, then they bid for the superconducting supercollider, and installed a seismic...
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3 replies | 87 view(s)
2013-May-23,
10:15 AM
grapes
replied to a thread
How practical is beach soccer?
in
Off-Topic Babbling
Or quidditch, played on many campuses
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11 replies | 109 view(s)
2013-May-21,
10:03 AM
grapes
replied to a thread
how do i have all my topics/posts deleted and username removed?
in
Forum Introductions and Feedback
We try. I can remember one poster who signed his full name to his initial post. The post was high enough quality that I was certain he'd be around...
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22 replies | 1199 view(s)
2013-May-21,
08:12 AM
grapes
replied to a thread
Mechanical advantages of rails?
in
Science and Technology
It's hard to imagine an alternative steel factory without some sort of rail system--you're not going to shuttle hot ladles back and forth on rubber...
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53 replies | 728 view(s)
2013-May-20,
10:47 AM
chornedsnorkack
replied to a thread
Precession of nearby binary planets
in
Space/Astronomy Questions and Answers
Confirming the cosine dependence, thus near constancy at small inclinations. Thanks, thatīs useful: 1) Precession is not as fast as I feared....
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4 replies | 129 view(s)
2013-May-20,
03:58 AM
grapes
started a thread
SPF ratings for sunscreens
in
Small Media at Large
From USA Today today: http://m.usatoday.com/article/news/2325341 OK I might believe that SPF ratings are gimmicks, as the article says, but I'm...
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8 replies | 159 view(s)
2013-May-20,
03:00 AM
grapes
replied to a thread
Looking for a solid pair of binoculars
in
Astronomical Observing, Equipment and Accessories
The last two links are the same.
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10 replies | 423 view(s)
2013-May-19,
07:16 PM
chornedsnorkack
replied to a thread
Precession of nearby binary planets
in
Space/Astronomy Questions and Answers
Precisely. I checked and confirmed my suspicion that the precession rate is proportional to the cosine of the inclination. At small inclinations,...
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4 replies | 129 view(s)
2013-May-19,
06:48 PM
grapes
replied to a thread
Machines in space
in
Science and Technology
Nobody else may have mentioned the effect of cosmic rays on computers and digital cameras, but that sure seems like an issue. Modern machines have a...
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36 replies | 1821 view(s)
2013-May-19,
11:10 AM
chornedsnorkack
started a thread
Precession of nearby binary planets
in
Space/Astronomy Questions and Answers
How fast would the orbits of planets in the habitable zones of nearby binaries precess relative to the binary orbit? The orbits are as follows:...
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4 replies | 129 view(s)
2013-May-19,
10:12 AM
grapes
replied to a thread
Mechanical advantages of rails?
in
Science and Technology
Simple physics and material strength allows one to calculate number of wheels. A single coal car carries a small hill of rock. (...
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53 replies | 728 view(s)
2013-May-17,
09:19 PM
chornedsnorkack
replied to a thread
Planet without life and rich in oxygen
in
Space/Astronomy Questions and Answers
It is quite easy to oxidize rocks to their maximum oxidation state. Silicon, aluminum, magnesium, all are the same oxidation state and cannot be...
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7 replies | 156 view(s)
2013-May-17,
08:43 PM
grapes
replied to a thread
Really trivial stuff that bugs you
in
Off-Topic Babbling
Spouse -- Spice Trousers -- Taser Douse -- Dice Souse -- Sots
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2573 replies | 78426 view(s)
2013-May-16,
06:43 PM
grapes
replied to a thread
What is the Average Distance Between Earth and Sun?
in
Astronomy
If it is given as 93,000,000 miles, there are two significant digits--it's been rounded to 93 million. Of course, it's 91.5-94.5 million over the...
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23 replies | 483 view(s)
2013-May-16,
10:08 AM
grapes
replied to a thread
Really trivial stuff that bugs you
in
Off-Topic Babbling
Interesting. The wiki says it is folk etymology. From http://www.navy.mil/submit/display.asp?story_id=11795 That ship may have sailed! :)
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2573 replies | 78426 view(s)
2013-May-15,
04:20 PM
grapes
replied to a thread
About Venus
in
Astronomy
OK, that clears that up. The phrase "null hypothesis" is too general and actually controversial. Why not just say, Hypothesis A, Hypothesis B,...
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18 replies | 354 view(s)
2013-May-15,
04:11 PM
grapes
replied to a thread
What is the Average Distance Between Earth and Sun?
in
Astronomy
I think that was their point! :) There is some justification for using the semi-major axis as the average distance, as we've said, and the...
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23 replies | 483 view(s)
2013-May-15,
12:39 PM
grapes
replied to a thread
About Venus
in
Astronomy
Not just superficial resemblances, either, but as Shaula mentions, in the DNA as well. Too? What are you calling the null hypothesis? :)
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18 replies | 354 view(s)
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