derobert

21 ms·

151.
by derobert 16y ago
Technically, the theorem doesn't apply. Actually built computers aren't Turing machines: their memory is finite. The algorithm to answer if a program running on a deterministic finite-memory machine is trivial: Run until it either halts or
152.
by derobert 16y ago
It strikes me as you're forgetting that percentages must total to 100. When you reduce the other causes of death, as we have very successfully done with almost every single one of the causes of death in e.g., 1900 (see http://www.cdc.gov
153.
by derobert 16y ago
Well, it'd be "low", "low-to-mid", "mid", "mid-to-high", and "high". So essentially dividing every 2°F, but not really, because the boundaries are fuzzy and quite possibly overlap. Only slightly less cardinality, a phrase that takes longer
154.
by derobert 16y ago
SMS verification would be a lot more useful if cell companies didn't insist on charging over $1 million/GB for them (well, unless you sign up for their text messaging plan). Thankfully, Chase does email as well. (Verizon: 20¢ ea., so 1GB /
155.
by derobert 16y ago
The cost differences may be due to required safety features or alternatively due to labor costs. Its a major construction project, after all.
156.
by derobert 16y ago
Electricity itself is hard to move over large distances due to resistive losses. However, energy-intensive industry will move, accomplishing a similar thing.
157.
by derobert 16y ago
Because coal pollution isn't listed as a cause of death (just like all pollution). It raises the incidence of many other diseases, and those diseases are listed as the cause of death. Coal also has additional direct deaths in e.g., mining a
158.
by derobert 16y ago
Saying 23 (°C) is less significant figures than "low to mid 70's (°F)" is language lawyering at best. You're ignoring the significant digits expressed by "low to mid". (And, for the record, "low 20's" °C would be 68–73°F, which is a perfect
159.
by derobert 16y ago
The way "full-duplex" fixed wireless gear often works is by splitting the spectrum in two halves (plus a sometimes small guard band: frequency division). Each end uses one half for TX. Alternatively, you use the full band but switch off whi
160.
by derobert 16y ago
Fairly easy to answer: $ host -t NS ly. ly name server phloem.uoregon.edu. ly name server ns-ly.ripe.net. ly name server dns1.lttnet.net. ly name server dns.lttnet.net. ly name server auth02.ns.uu.net.
161.
by derobert 16y ago
I confess I haven't watched it (sounds painful), since the basic premise is wrong. The US Treasury borrows money by issuing Treasuries, yes. It then pays interest on those, yes. The Federal Reserve creates money, and then injects it by buyi
162.
by derobert 16y ago
GPS signal strength at Earth's surface is -130dBmW, so that'd be attowatts... A GPS satellite capable of 0dBmW would be truly scary; it'd have about a petawatt of electrical supply. See, e.g., http://gpsinformation.net/main/gpspower.htm
163.
by derobert 16y ago
No, that's what views are for. A sane approach would be to do all your table access via views, and the view definitions have the 'where is_deleted = 0' or whatever. Then your database handles it. Updates to the view work as well, in pretty
164.
by derobert 16y ago
Hylafax is an open-source fax server. Ran it a long time ago, surprised to see its still around. People still use faxes? http://www.hylafax.org/content/Main_Page
165.
by derobert 16y ago
Google will happily take your money: https://www.google.com/accounts/PurchaseStorage
166.
by derobert 16y ago
Dual-socket i7 is called Xeon. There are dual-socket and even quad-socket 8-core hyperthreaded xeons (the Xeon L75xx series). A 1U Intel with 64 threads will set you back about $20k. AMD has 12-core chips, so you can get 48 cores in 4 socke
167.
by derobert 16y ago
Congress dreamed up some weird criteria to determine copyright ownership, and no matter how wrong it is, it still the law. Unless it was a work for hire, which it probably isn't under 17 U.S.C. §101 as there was neither employment nor anyth
168.
by derobert 16y ago
You need to consider the amount of fuel used to produce the calories you consume cycling, which may be more or less than UPS, depending on how much additional driving UPS has to do to deliver (it may be fairly small e.g., if they're already
169.
by derobert 17y ago
Next step would be, I'd think, to bring the humidity in your room back up to sane, comfortable, healthy levels. Either that, or a working freezer. A 70°F (~21°C) room will have a dew point far above the 0°F freezer, so your drive should dev
170.
by derobert 17y ago
Safest (as in least likely to offend) ways would be to use "he/she" or rephrase w/o the gendered pronoun as in "when was your child born?". Traditionally, male-gendered is used for unknown sex, though some object to that.
171.
by derobert 17y ago
If your bootloader is not locked down, change the Linux command line and add: init=/bin/sh That'll give you a root prompt. You may need to mount filesystems by hand, etc., since init scripts have not run.
172.
by derobert 17y ago
Another big reason resistance to alcohol (and boiling water) doesn't develop is that neither is persistent in the environment, and thus the selective pressure vanishes fairly quickly. The mutations required to resist either likely have down
173.
by derobert 17y ago
Wireless TV uses a much lower bandwidth, and picture quality, than HDMI offers. ATSC (current US over the air HDTV standard), for example, delivers around 18mbps, three orders of magnitude less than HDMI. SDTV did not use bits, it was analo
174.
by derobert 17y ago
> To brute force the CCV, you do need the clear text CC. No you don't; the ciphertext will do. There CCV codes are three or four digits, so you have 1,000 or 10,000 keys to try. Try all of them. If the plaintext is encoded in ASCII, the
175.
by derobert 17y ago
HDMI 1.3 delivers 10.2Gbps according to the Wiki, and some simple math says 48-bit 1920x1080@60p is ~6Gbps. So, that should explain why it can't be wireless. It can be done over fiber—something the article's author apparently didn't bother
176.
by derobert 17y ago
Yes, the Federal Reserve turns over a fair bit of seignorage to the treasury. The latest number I see is $31.7 billion in 2008. http://federalreserve.gov/boarddocs/RptCongress/budgetrev09/... Of course, that $31.7 billion is mostly intere
177.
by derobert 17y ago
I'm not sure how hard it would be to create a reliable test for clicks. Depends on the type of click, I suppose. Some would be fairly easy to detect (e.g., "for .1s, all samples output are 0, with loud samples on both sides"). Though I'm gu
178.
by derobert 17y ago
"verify that the waveforms match within a tolerance" The problem is, that is not easy. Determining how close two pieces of audio sound is the majority of the lossy audio compression problem. You can of course check if you're output is bitwi
179.
by derobert 17y ago
No, going back to buying directly from the producer is horribly inefficient. Consider just the additional travel required between: (a) Each producer sells their goods to a central location (say, your local Walmart). Each consumer goes to th
180.
by derobert 17y ago
"Ubuntu likes to reset the MOTD on boot, how would you set it so this doesn't happen on boot [hack expected] (2 marks)" Heh. So does that mean you wouldn't accept "edit /etc/default/rcS and change EDITMOTD to no"? :-P

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