View Profile: chornedsnorkack

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/

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. ...

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...

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

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...

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...

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, that´s useful: 1) Precession is not as fast as I feared....

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...

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.

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,...

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...

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:...

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. (...

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...

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

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...

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! :)

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,...

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...

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? :)

18 replies | 354 view(s)

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