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SamCashion
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SamCashion
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2011-Nov-12
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2012-Feb-20
05:52 AM
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Today,
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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18 replies | 1044 view(s)
Today,
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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40 replies | 455 view(s)
Yesterday,
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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4 replies | 77 view(s)
Yesterday,
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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6 replies | 139 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 | 1788 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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40 replies | 455 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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2512 replies | 76885 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 | 449 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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2512 replies | 76885 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 | 326 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 | 449 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 | 326 view(s)
2013-May-15,
03:36 AM
grapes
replied to a thread
What is the Average Distance Between Earth and Sun?
in
Astronomy
Like Glom, I'd say yes. Aphelion plus perihelion equals major axis, so half of that is the semi-major axis, and Kepler's laws depend upon the...
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23 replies | 449 view(s)
2013-May-14,
04:25 PM
grapes
replied to a thread
Lagrange point with a mass, does it create baby L-points?
in
Space/Astronomy Questions and Answers
But isn't the moon of appreciable size? Or, going back to the OP, substantial enough? The moon is large enough, relative to the earth, that some...
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14 replies | 272 view(s)
2013-May-14,
02:21 PM
grapes
replied to a thread
Really trivial stuff that amuses you...
in
Off-Topic Babbling
Yesterday, some kids asked which languages I knew. I claimed an additional ability to speak British, and they were impressed, until I admitted it...
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1563 replies | 53743 view(s)
2013-May-14,
10:23 AM
grapes
replied to a thread
Lagrange point with a mass, does it create baby L-points?
in
Space/Astronomy Questions and Answers
Putting in a second moon into the earth/moon system would not put you over the 1/25 limit.
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14 replies | 272 view(s)
2013-May-12,
07:53 PM
grapes
replied to a thread
Lagrange point with a mass, does it create baby L-points?
in
Space/Astronomy Questions and Answers
L4/L5 are stabile when the large mass is 25 times as massive as the smaller mass. The earth is 80 times the mass of the moon. So, when you say...
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14 replies | 272 view(s)
2013-May-12,
05:47 PM
grapes
replied to a thread
Really trivial stuff that bugs you
in
Off-Topic Babbling
Only in the last hundred years http://en.m.wikipedia.org/wiki/Cootie_(game)
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2512 replies | 76885 view(s)
2013-May-10,
09:23 PM
grapes
replied to a thread
Which CQ rule, or combo of rules, say "No Trolls Allowed"?
in
Forum Introductions and Feedback
Uh-oh Jim, we've hurt his feelings again. Whose turn is it to accompany him to the tiki bar?
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9 replies | 233 view(s)
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About SamCashion
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