Comment: View from Space (Score 5, Informative) 289
For the real good stuff, though, check out the high res images in the Universe Today coverage, which showcases several of the images directly from Cmdr Hadfield's twitter feed.
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Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway.
The last time I saw that line, I decided to actually look into it.
In the 1970s, by which time the phrase was already in use, a typical station wagon would be something like an AMC Rebel. According to stats from Wikipedia, the Rebel has a cargo capacity of 91 cubic feet. For tape, the IBM 10.5" reel was the "defacto standard" from the 1950s "through the late 1980s". Assume 10.5"x10.5"x.5" i.e. 55.1 cubic-inch rectangular prisms as the tightest possible packing (which is optimistic, given that the tape itself is
This finally corresponds to a mid-1970s bandwidth of 390 gigabytes per 15.5 hours, or in more familiar units, 57 mbps (yes, bits not Bytes, as is typical for bandwidth units).
The modern version would probably need to substitute an SUV for the station wagon. A 2012 Ford Explorer is listed at 81 cubic feet. Using common modern tapes, like jb/jx tapes, you could hold ~7000. In gen4 mode, these tapes hold 1.6 TB (yes, 4TB tapes exist but seem too extraordinary for this usage). At typical cross-country speed of 68 mph, the same trip would be 13 hours, padded by the same half-hour for gas the previous figure was.
The modern version, then, works out to some 11 petabytes per 13 hours, or something like 1900 gbps. This works out to a full terabyte transferred every 4.2 seconds.
Do not underestimate, indeed!
you would still not approach being right about race's connection with biology
I'm not sure to whom you're speaking, since I didn't attempt to connect race and biology. I was objecting to the totally fallacious argument you made ("foo can be determined over the phone, therefore, foo has nothing to do with biology").
I would love to hear what's "obvious" about it not being related to biology, since other things obviously are - such as larynx size being directly related to sexual dimorphism, as you so conveniently elaborated on for me.
Also, fwiw, I'm not the AC in this thread.
As an example, you can also tell the "race" of a person if you talk to them on the phone. This obviously has nothing do with biology.
As an example, you can also tell the "sex" of a person if you talk to them on the phone. This obviously has nothing to do with biology.
You have all eternity to be cautious in when you're dead. -- Lois Platford