So you're saying Quantum sounds like shit. (walks off whistling)
In the leaked emails other Democrats were freaking out about Hillay's email. It is a huge problem and ignoring it is insane.
I feel like I must have been only semi-conscious when I typed "quantum fluctuations"... Too much star trek or something.
While the variances in exactly what levels are taken as TTL high vs low (and indeed the function of all semiconductors) are indeed caused by quantum-level effects, "quantum fluctuations" is a specific term in physics that is not really directly connected to why those variations occur. The term that I meant to type was quantum-level effects, not quantum fluctuations.
Also, I meant that the parts for this are ubiquitously *CHEAP* and ubiquitous.
Hmmm.... I thought I saw one other thing there that made me grossly ashamed to have posted it (oh, for a delete post or edit post button), but I don't see it right now.
My point remains... while doing this with a microcontroller executing firmware instructions or even microcode is certainly possible, it would not generally be very practical. While I've described the circuitry involved in terms of simple TTL components, this could easily be printed onto silicon as part of an IC package that may do many other things (and could even be a part of a microntroller IC), but even then, it would still not be firmware managing the power off button.
I'm guessing when Superman recently learned that "sometimes, he must kill", you were like right on! Screw daddy's Goody Two Shoes Superman and milksop Clark Kent!
Mercifully, we have found a home for that in Supergirl. Enjoy your asshole-rich Superman movies.
For the first time in my life, I did not watch the most recent Trek movie. Enough is enough, and fans should grow balls and stop watching crap foisted on you.
If you like it, bon apetit.
I will watch this one's apparent premeire on TV, but will not watch it on CBS All Access (it won't come close to overlapping a Big Brother live feed, and in no way will I pay to watch commercials in any case.)
and in addition to the capacitor you'd also need a voltage reference, a comparator, a discharge circuit
No, no, and no.
TTL logic is high or low. There is no in-between, so you do not need a voltage reference or comparator to know when the appropriate charging point is reached. Using known values of resistance and capacitance, you can manually calculate how long it will take for a given capacitor in series with a given resistance to charge enough to get to what would be recognized as a TTL high signal. Quantum fluctuations may result in changes to this value on the order of picoseconds to the actual timing, but this is an on-off switch we are talking about, so such tiny variances will not generally affect any real-world use case. Further, being a few picoseconds off is still better than the nanosecond or worse granularity that you'd typically achieve doing it in firmware.
Discharging the capacitor after power is cut can be accomplished via a pull-down resistor to ground... so unless you consider one resistor a "circuit", no discharge circuit is required.
Even without buying the parts in bulk, the parts for this are ridiculously and ubiquitous.
The microcontroller on the main board has plenty of other things to do, and tying it up dealing with some firmware logic for powering down would be wasteful in terms of power usage, at least. The most sane thing for it to do would be to send a signal to the power off circuitry built into the power supply.
...And I can't get better than 50Mb/sec.
"But Comcast has..." (*SMACK*) I will not let Comcast be my ISP, for reasons which should be obvious by now to every member of this site.
The weird thing is that, about a year ago, a truck from HP Communications (no relation) strung fiber up around my residential neighborhood, allegedly on behalf of AboveNet (now part of Zayo). Since then, however, not a peep out of anyone even hinting at a residential fiber service offering.
Zoo keeper mauled to death 'after defecating on tiger'
A young Chinese tiger keeper has been mauled to death after apparently trying to defecate on one of his big cats.
The 19-year-old appears to have climbed the railings of the Bengal tiger cage and pulled his trousers down.
Evidence at the scene of the death at the Jinan animal park included toilet paper, excrement and a trouser belt.
Zoo officials think Xu Xiaodong either slipped into the cage or was pulled in by one of the four angry tigers.
According to the South China Morning Post, the man told a co-worker he needed to go to the toilet but police were called when he failed to return.
They found his body lying on the ground surrounded by tigers. The teenager had reportedly been bitten in the neck and was covered in blood.
Police believe Xu climbed the wall of a partially constructed building used to raise the tigers to relieve himself. They said the smell probably caused the tigers to pounce.
You can see more stories about tigers and zoos on Ananova,
or read our Animal attacks file.
I bet the human brain is a kludge. -- Marvin Minsky