Parent reminded me of the apocryphal objection to COBOL: "But Grace, darling, that will allow anyone to program" where the comparison is to assembly language.
With some processors, registers are mapped into memory space, so you could access them with C pointers. Intel's old 8-bit micrcontrollers, for one.
Re:Yes, we were clustering when y'all were in napp
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DECnet Isn't Dead
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Actually, I was using a 780 that was field-upgraded to a 785. The new label on the box said "VAX 11/780-5". Given that almost nothing was left of the 780 except cables and the cabinet, I used to wonder if this was DEC's way of gaming the government regulations about buying computers. "No, sir, this isn't a new computer, it's an upgrade."
My last VAX development work was writing FORTRAN programs to simulate the intermolecular Raman spectra of naphthalene trimer and tetramer in grad school, using what the sysadmin said was the last, fastest workstation model. This was in 1996.
Re:Yes, we were clustering when y'all were in napp
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MicroVAX? Newbie. I was imagining a DECluster of 785s and a refrigerator-size disk subsystem, used for development work in the 1980s and 1990s (and, for all I know, today). Four packs, 220 megabytes each. Fun, fun, fun...:)
Saying the Russians "don't know how" isn't really true. What they lack is cash to establish and keep an effective industrial base. Without that, an engineering education isn't worth much.
Yes, it dissolves, but not indefinitely. There's already a large amount of carbon dioxide in the deep ocean waters; how far are we from saturation? Also, though the ocean vs. volcanic lake geometry is vastly different, how confident are we there won't be abrupt oceanic upwellings leading to massive carbon dioxide releases?
The physicist measures the amount of heat coming off the fire and calculates the amount of water needed to put the fire out, does so, and goes to bed.
The engineer builds a scale model of the object that's on fire, sets that on fire, puts it out (noting how much water it takes), scales up the amount of water for the original fire, and puts that one out, and goes to bed.
The mathematician sits away from the fire for a few minutes, realizes there is a solution, and goes to bed.
Binary has signal ranges which the circuit, operating in saturation (contrast linear amplifier circuits), associates with '0' or '1'. There is also a gap between these ranges; operating the circuit in saturation ensures that signals from the gap range are, at most, short-lived transients.
Geez, don't they teach kids the fundamentals of anything nowadays? Oh, wait...
There is an article here describing the various services' ideas as to how to end the war with Japan. It says the U.S. Army wanted to invade, and the U.S. Navy wanted to blockade and use U.S. Army Air Force strategic bombers to end the war. Note that the planners didn't know about the Manhattan Project, and made plans that didn't involve atomic weaponry.
The phrase 'semi-pro' has been used for decades to describe athletes who are paid, but not enough to make a living exclusively from sport. A brewery-sponsored baseball team, for example.
Vario was B/W film, not paper, so this is somewhat OT. It had high contrast and high exposure latitute; I could go +/- 2 stops with no problem, and maybe more. The film took C-41 processing, and then you used regular B/W paper. Because of this, a processor in San Diego called it 'special order' to process and print, which cost quite a bit more. Still, great photos.
By the way, Richard Rhodes mentions in "Dark Sun" that Taylor instability might prevent the Ivy Mike test from working. Someone (Bethe, maybe; I don't have my copy handy) showed the instability wouldn't be a problem.
I've heard rumors over the years of cost overruns and missed performance milestones, both on NIF and NOVA, its predecessor. Knowing from being a laser jock in the realm of molecular spectroscopy that it's hard enough to make two YAG lasers with tens of megawatt peak power behave, how do they realisticlly expect to tame the timing, beamshape, and power issues associated with this beast?
However, having spent tens of billions to build, and who knows how much to operate and maintain, the B-2 fleet, I'd make sure a software glitch couldn't bring one down via loss of control.
Slashdot Mirror
Disney?
Parent reminded me of the apocryphal objection to COBOL: "But Grace, darling, that will allow anyone to program" where the comparison is to assembly language.
do something with the registers in your CPU
With some processors, registers are mapped into memory space, so you could access them with C pointers. Intel's old 8-bit micrcontrollers, for one.
Actually, I was using a 780 that was field-upgraded to a 785. The new label on the box said "VAX 11/780-5". Given that almost nothing was left of the 780 except cables and the cabinet, I used to wonder if this was DEC's way of gaming the government regulations about buying computers. "No, sir, this isn't a new computer, it's an upgrade."
My last VAX development work was writing FORTRAN programs to simulate the intermolecular Raman spectra of naphthalene trimer and tetramer in grad school, using what the sysadmin said was the last, fastest workstation model. This was in 1996.
MicroVAX? Newbie. I was imagining a DECluster of 785s and a refrigerator-size disk subsystem, used for development work in the 1980s and 1990s (and, for all I know, today). Four packs, 220 megabytes each. Fun, fun, fun... :)
Saying the Russians "don't know how" isn't really true. What they lack is cash to establish and keep an effective industrial base. Without that, an engineering education isn't worth much.
Right, Lake Nyos for one.
Yes, it dissolves, but not indefinitely. There's already a large amount of carbon dioxide in the deep ocean waters; how far are we from saturation? Also, though the ocean vs. volcanic lake geometry is vastly different, how confident are we there won't be abrupt oceanic upwellings leading to massive carbon dioxide releases?
The physicist measures the amount of heat coming off the fire and calculates the amount of water needed to put the fire out, does so, and goes to bed.
The engineer builds a scale model of the object that's on fire, sets that on fire, puts it out (noting how much water it takes), scales up the amount of water for the original fire, and puts that one out, and goes to bed.
The mathematician sits away from the fire for a few minutes, realizes there is a solution, and goes to bed.
Binary has signal ranges which the circuit, operating in saturation (contrast linear amplifier circuits), associates with '0' or '1'. There is also a gap between these ranges; operating the circuit in saturation ensures that signals from the gap range are, at most, short-lived transients.
Geez, don't they teach kids the fundamentals of anything nowadays? Oh, wait...
Actually, it's analog; binary plays only a bit part.
One reason: to spread revulsion of such activities, so that they will never happen again.
There is an article here describing the various services' ideas as to how to end the war with Japan. It says the U.S. Army wanted to invade, and the U.S. Navy wanted to blockade and use U.S. Army Air Force strategic bombers to end the war. Note that the planners didn't know about the Manhattan Project, and made plans that didn't involve atomic weaponry.
The phrase 'semi-pro' has been used for decades to describe athletes who are paid, but not enough to make a living exclusively from sport. A brewery-sponsored baseball team, for example.
Vario was B/W film, not paper, so this is somewhat OT. It had high contrast and high exposure latitute; I could go +/- 2 stops with no problem, and maybe more. The film took C-41 processing, and then you used regular B/W paper. Because of this, a processor in San Diego called it 'special order' to process and print, which cost quite a bit more. Still, great photos.
This was around 1981. Anyone else try it?
Observation of nuclear fusion driven by a pyroelectric crystal is a press release dated Apr 27, 2005, from the journal Nature.
It sounds like they have achieved "nanoscale hot fusion," rather than P&F cold fusion.
I googled Brian Naranjo and came up with UCLA. I figured it was that, or Caltech (because of the Pasadena dateline).
I read ELF as "Extremely Low Frequency" and was thinking "how can a really slow clock lead to an exploit?" Then I read the bleeping header...
"Dark Sun" that Taylor
should be
"Dark Sun" that Edward Teller thought Taylor
Thanks for the info.
By the way, Richard Rhodes mentions in "Dark Sun" that Taylor instability might prevent the Ivy Mike test from working. Someone (Bethe, maybe; I don't have my copy handy) showed the instability wouldn't be a problem.
Then what is holding them back?
I've heard rumors over the years of cost overruns and missed performance milestones, both on NIF and NOVA, its predecessor. Knowing from being a laser jock in the realm of molecular spectroscopy that it's hard enough to make two YAG lasers with tens of megawatt peak power behave, how do they realisticlly expect to tame the timing, beamshape, and power issues associated with this beast?
Zilog has a booth at ESCON West every year, selling commodity microcontrollers for the embedded trade.
Not mentioned: Altavista was created at DEC, and spun off from that company. DEC was in decline; maybe they thought the cash would buy them some time.
However, having spent tens of billions to build, and who knows how much to operate and maintain, the B-2 fleet, I'd make sure a software glitch couldn't bring one down via loss of control.