14h
awarded Good Question
2d
comment Stable polar solar orbit with the Earth continuously observable
@Neomada: Noordung's edit makes your question more appealing to snobs like me who are more likely to read a question that is properly formatted than one which isn't. You should be thanking him, not insinuating that his motives were cynical.
2d
comment If the moon wasn't receding from Earth, what would be the impact on the weather and tides?
The energy of the sound of waves crashing comes from the moon. I am going to mention this to my daughters next time we are at the beach with the moon visible. Thank you for this wonderful insight.
2d
answered Smallest body that can be observed from Earth?
2d
answered Can Jupiter's bands be made out using a 15x70 pair of binoculars?
2d
comment Why do we use Group by 1 and Group by 1,2,3 in SQL query?
Use order by 1 only when sitting at the mysql> prompt. In code, use ORDER BY id ASC. Note the case, explicit field name, and explicit ordering direction.
2d
revised What is the reason for small, lightly coloured text?
added 82 characters in body
Dec
19
comment Why isn't length contraction permanent even though time dilation is?
The length of space passed is in fact permanently contracted. Without loss of generality, consider a particle moving at C. For it the space passed contracted to 0 and the time passed was 0. If the space travelled were not permanently contracted, the particle would not be permanently at the new location after 0 time. Note that this does not imply that the distance can be traversed again in its contracted state.
Dec
19
answered Prompted to download when opening PHP files in firefox
Dec
19
comment What is the reason for small, lightly coloured text?
I added a few examples to illustrate that it is often the main content of the site which is grey, not secondary information.
Dec
19
accepted What is the reason for small, lightly coloured text?
Dec
19
revised What is the reason for small, lightly coloured text?
Another example.
Dec
19
answered Detecting and preventing 'phone home' behavior in PDF files
Dec
19
accepted Please remove 'may already have an answer' from question
Dec
19
comment Please remove 'may already have an answer' from question
The ironic thing is, that this question on meta.SE also got closed as a dupe of a question that has nothing to do with what was asked here. Is that some kind of joke?
Dec
18
comment Where is the best place to get a time history of launches and satellite numbers
In another answer Erik mentions a terrific resource for this type of data.
Dec
18
asked Set CPU frequency scaling to wait one second before scaling down
Dec
17
comment Do stray dogs ever bite people or only trained “security” dogs bite?
You might as well ask the corollary as well: are all humans likely to attack you, or only those trained in combat? Because to be honest, I am more afraid of random humans that I encounter than I am of random dogs. At least the dogs who would harm you give you warning first.
Dec
17
comment Firefox "Untrusted Connection" warnings when visiting reputable HTTPS sites when using child's account
This is a terrific answer. I've starred the question just to reference this answer. Thank you!
Dec
17
comment Is tap water drinkable in Massachusetts (and elsewhere in USA)?
@Schwern: Bisphenol A is one such chemical which is known to leach out of plastic bottles into drinking water.
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