yes it would be unit-days, as in nX=22858 so each drive in the array (n) had an uptime of X=22858/n. We know what n is. It's 45. Therefore, X=22858/45=~508 days. The stated MTBF of the HGST Enterprise-class drives is 2.5 million hours. That would put the expected array failure rate at 2,314 days (2.5mill. divided by array size).
So don't be impressed, this is actually a failure report.
I had a 1st Gen Seagate 80GB SATA fail last month after 11 years and change, of 24/7 daily operation and very few power-off cycles.
not only did the Russians use graphite pencils prior to 1968, pencils were also used on all Mercury and Gemini flights. They were replaced with the Fisher pen for Apollo and subsequent missions while the Russians used grease pencils for a year before ordering a hundred Fisher pens in 1969. And NASA never spent a dime on space pen development, that was all Fisher's work, paid for out of his own pocket. (sources: Snopes, NASA)
I'd rather use the Russian method.
my cluster is a mix of telescopes and cameras, all on the same mount: a Celestron 90AZ refractor, a noname 4" reflector with a Russian spherical mirror, a JVC MiniDV camcorder, a SumVision Panther GX 5MP helium-cooled webcam (that was fun to put together!), and one or two compact digital cameras which shoot on their own for wide field or through the telescopes' focal axes for narrow field. The mount is an alt-az computer controlled homebuilt Frankenstein's Monster of an engineering abortion that somehow just works.
there is no reason to prefer ink over pencil. In fact, pencil is safer because of the ever present risk of water ingress - graphite marks are impervious to it. Also, at what point do you think a ballot is going to be adjusted? When it goes into the box, that's it, it doesn't see the light of day again until it reaches the counting hall, in the interim the box itself has at least two pairs of eyes on it at ALL TIMES and the chain of custody is rigorously audited for every single box.
ID not required in England. Just a verbal confirmation of name and address, which is indelibly checked off a list as you are being passed your ballot and directed to the polling booth. You don't need ID for postal ballots either, which IMO is where the process breaks down since postal voting is a relatively new thing, designed to cater for the lazy and the fraudster. Ever worked in a mail office?? Any idea how many envelopes one person can stick and stamp in an hour??
if you're going to ask a security question, who better to ask than a security guy?
Or are you planning on asking him for advice on spinal surgery while you're there?
There are situations where technological advances do make life easier, and more accountable, and fairer for all. The democratic process is NOT such a situation. For fuck's sake, can we forget this voting computer bullshit and get back to PAPER ballots and HUMAN counters, which has been time-proven for the last two fucking millennia??
Because galactic forms follow known patterns, beyond certain sizes those patterns change, so knowing the size range of those types...) you can estimate the distance first by visual observation (simply measure its apparent width) then trig it. If that matches the redshift observations (which you can measure using spectroscopy), then you're there.
that is a VERY nice looking piece of kit. http://www.diyphotography.net/...
Are they aware that the City of London is only one square mile, and where the fuck is Kalamazoo?
Having political opinion shoved down your throat as fact is the same thing as a street evangelist following you around with a loudhailer. It might be free speech but it is HARASSMENT when you are clearly walking away with NO INTENTION of listening.
No. I'll go one step further. It's like a penis. It's all good having religion or a political opinion because it shows at least some awareness of the world outside your immediate bubble, and you should be rightly proud of your wang, but the SECOND you start shoving it down people's throats, conversations shall be had. In the Roman sense of the word.
"How do I love thee? My accumulator overflows."