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DLM
I like astronomy. It is my hobby not my profession.
Have you observed the tumbling ARGOS satellite, or others that are noteworthy?
I just watched a pass of it over my location, with an impressive brightening and fading due to its slow tumble (roughly 30-45 seconds between consecutive maximum brightness periods, sorry so vague, I didn't think to time the period). Based on the limiting magnitude of the nearby stars, I would estimate it peaked at about magnitude +1.5 and faded to fainter than +4.0 (my limiting magnitude in that region of the sky tonight, not sure how faint it actually got, but I did lose sight of it) before regaining sight of it and its return to around +1.5.
It reminded me of an observation about 11 years ago, when I saw my first tumbling satellite (I believed it to be Raduga 33, but sites like heavens-above weren't available to me at the time), which really ignited my passion for satellite viewing.
Does anyone have any other recommendations for tumbling payloads that fluctuate in apparent magnitude so much?
Astronomy & Spacevor 7 JahrenDoes google still have to option to view a cached version of a website?
See a snapshot of what it looked like during the latest web crawl?
2 AntwortenGooglevor 8 JahrenGE Top load belt drive washing machine won't spin effectively.?
The drum will spin a little less than one full revolution, then a loud 'clunk' is head and it stops. I can spin it by hand in reverse endlessly, but when spinning it forward, it cannot complete one full spin. If I move the belt by hand, it does not come to a stop at all, and continues moving (in either direction) without any resistance.
All other functions of the washer seem to operate normally. It fills, washes, agitates, and drains fine. It just gets to the spin cycle and sounds like a death ray as it tries to spin but doesn't.
Do I need to replace the belt? Or something else? Any tips or advice would be appreciated.
2 AntwortenCleaning & Laundryvor 9 JahrenDo objects beyong our observable horizon have any gravitational affect on us?
If gravity propagates at light speed, and there are objects beyond our observable horizon, would it be accurate to conclude that beyond the observable horizon, we are not gravitationally perturbed by such objects.
Does the inverse square rule only apply to objects we can see?
Follow up question.
If they don't have any affect, would it be possible to detect the presence of such an object based on its gravitational influence on an object just barely within our observable horizon, assuming our detection methods for such a ridiculous scenario were sensitive enough?
7 AntwortenAstronomy & Spacevor 10 JahrenWhere can I find a good online documentary on the 1883 Krakatoa eruption?
I remember seeing an excellent documentary about this event a few years back, I think it was on PBS. The documentaries I've been able to find so far aren't very detailed. Links would be great, or search engine terms you might suggest for me.
Earth Sciences & Geologyvor 10 JahrenHow many teams made the playoffs in each of the following decades?
1960s
1970s
1980s
1990s
2000s
and
2010s
Can you name them?
5 AntwortenBaseballvor 10 JahrenIf you were in charge with realignment, what teams would you put in each division?
Take into account whatever you feel is necessary...
Travel, time zones, historical significance, nostalgia, rivalries, etc.
(And yes, include Winnipeg)
6 AntwortenHockeyvor 10 JahrenCould it be possible to detect the Kordylewski Clouds if they passed in front of a distant star?
I've always heard them referred to as hypothetical, and no sighting claims have ever been confirmed. Would it be possible to detect them if they passed in front of a star, would we be able to measure the minute change in brightness to determine if they are really there?
All criticisms welcome.
For those of you unfamiliar with the Kordylewski Clouds:
http://en.wikipedia.org/wiki/Kordylewski_cloud
This is a follow up question to the one I asked yesterday, which I would still appreciate replies to.
Astronomy & Spacevor 1 JahrzehntHave there been any confirmed sightings of the Kordylewski clouds?
I've always heard them referred to as hypothetical, and "claims" have been made of these objects being sighted. Is there any information available on confirmed existence?
Astronomy & Spacevor 1 JahrzehntHow is a conditioned response different from learning?
2 AntwortenPsychologyvor 1 JahrzehntQuestion on a theory on our Solar System's evolution?
http://www.youtube.com/watch?v=Q4UmVelA4RU
You can skip to time index 7:41 for the part I am curious about.
1). Wouldn't this cause greater eccentricities of the planets affected, than what we observe today?
2). If accurate, could this period be responsible for Uranus' peculiar obliquity?
3 AntwortenAstronomy & Spacevor 1 JahrzehntWhat would be the consequences and benefits if everyone became a vegan starting right now?
I've had this thought rummaging through my mind for a while, and maybe the biosphere is too dynamic to project all the variables, but I think it would be interesting to see some other ideas.
1. We would be in competetion with currently domesticated animals for plants to eat.
2. Grasslands for grazing would be converted into crops for human consumption, would we be able to turn over our fields fast enough for consecutive harvests?
3. The cost of produce would go up, with the extreme and sudden increase in demand
4. ???
2 AntwortenOther - Sciencevor 1 JahrzehntDo we know the sunspot cycles of other stars?
Other stars besides the Sun?
3 AntwortenAstronomy & Spacevor 1 JahrzehntWhy isn't my laptop microphone working properly?
Not sure how much information you need, but here's the easy stuff:
I have an HP Laptop
OS = Windows 7
I am trying to record my voice on a certain website, but in the process, after I select 'allow the website to access my microphone,' I am suddenly receiving a message that states they cannot access my microphone.
I have attempted a similar process on a couple other websites, with identical results.
I am thinking I have inadvertently turned off my mic. But I even shut down my computer and started it back up again, with the repeated undesired result. Where do I go and/or what should I do to resolve this problem?
1 AntwortLaptops & Notebooksvor 1 JahrzehntPunctuation question, quote within parentheses, at the end of a sentence.?
Example:
The thing of it is, it doesn't really have to be like that (that being the way you "describe.")
What order should the quotation mark, parentheses, and period be in, at the end of this sentence, or a sentence similar to it?
7 AntwortenWords & Wordplayvor 1 JahrzehntStatistical data on forcast accuracy?
Is there any data available, for any local region, that compares the meteorological forecast 24 hours in advance to the actual weather that occurred during the predicted time-frame?
I'm mostly looking for predicted temperatures and precipitation compared to the actual. Winds and cloudy/clear would be helpful too, but not necessary. I would prefer something with a timespan of at least one full year, without gaps in the data... multiple locations would be a bonus!
1 AntwortWeathervor 1 Jahrzehnt