connect the data line to an edge triggered flip-flop
connect the flip-flop output to a parallel I/O port
connect the read strobe on the I/O port to the reset line of the flip-flop
connect the front panel LEDs to a parallel I/O port
Software:
In the real-time clock interrupt service routine, read/reset the data activity flip-flops, write the state of the flip-flops to the appropriate front panel LEDs.
I've done this on embedded systems. Having the front panel LEDs under software control, instead of being hardwired, can be very useful. It takes minimal hardware and allows you to do creative things in the software for diagnostics.
There are large quantities of U238 (depleted uranium) left over from uranium enrichment processes. Arms reduction treaties and the retirement of obsolete nuclear weapons have resulted in a large number of Pu239 "pits" that are currently stored in secure DoE facilities.
You may be thinking of U-238, aka depleted uranium. Pu238 production was done by the Department of Energy using a unusual and expensive production process, not the normal process used to convert uranium to Pu239.
Many of those shops, such as McDonalds, are franchises, owned by an independent business man/woman, not the "evil" multinational corporation.
In the good old days, the police grabbed a bunch of shotguns (12 gauge riot guns), and fired at the rioter's legs or the ground in front of the rioters.
There are many neutron generator tubes that have been made for commercial, scientific and military applications. They are used as the initiator in modern fission weapon designs.
The fusion reactions commonly used are D-D (deuterium-deuterium) and D-T (deuterium-tritium). Deuterium ions can be boiled off a hot filament and electrically accelerated into a target that has been impregnated with deuterium and/or tritium.
One reason that I can think of is configuration control. Maybe I want to make sure that only properly tested and certified releases of software are in the hands of the end users. They could have program listings, but not machine readable source code.
Nuclear batteries (radioisotope thermoelectric generators) usually use Pu238, an isotope of plutonium that is useless for creating nuclear weapons. The problem is that at several thousand dollars a gram for the Pu238, they are far too expensive for most applications.
Re:Then MarsHydro could become a reality...?
on
Lots of Ice On Mars
·
· Score: 2
If NASA sold some Moon rocks, the money would go into the federal government's general fund, not the NASA budget. So what would be the point of selling them?
Considering that Ron Paul ran for President on the Libertarian Party ticket, I doubt that his opposition to the amendment was based on financial support from the Bell companies.
Except for Louisiana, pre-revolution English common law is the basis for the legal system in the United States. Blackstone's Commentaries on the Laws of England was a popular legal text in the United States for many years after the Revolution.
Most of my spam comes from Asia, and it is in Chinese, Korean and occasionally Cyrillic. The majority of it originates in Asia. I've had my cow-orkers translate some of it for me. I don't know why I get the stuff, as I don't speak any Asian languages.
Does anybody else remember C-Rations? They were the predecessor of MREs. They came in a cardboard box, full of little OD green cans. You haven't lived until you have eaten Ham and Eggs, cold, out of a can.
See Army Chow and Other War Atrocities
by David Thayer, for a look at Army chow in the pre-MRE era.
The HDTV signals may be just as wide (6 MHz) as NTSC, but they can be more closely packed, saving spectrum. HDTV is much less susceptible to inter-channel interference.
It was the NAB (National Association of Broadcasters) that led the push for HDTV. The FCC wanted to reallocate some of the UHF television spectrum for more productive uses. There was also a fear that the USA was falling further behind Japan and Europe in the area of TV technology.
If the FCC wants HDTV to take hold, they must mandate HDTV must-carry on cable and HDTV compatible tuners on new TV sets. 85% of the public gets their TV signals from cable or DBS. The FCC mandated the inclusion of UHF tuners in TV sets, and set performance standards for UHF tuners, to make UHF TV a commercial success. When the FCC let the market decide with AM Stereo, it was a disaster.
The one thing that drives me crazy is programs and web applications that cheerfully discard 30 minutes of typing because there was a network error or I hit the wrong key.
Programs that steal the focus from the current foreground program are also very annoying. I'm typing in a sentence, some program steals the focus, and it does random bad things when it interprets my keystrokes as commands.
I've had annoying problems with McAfee "finding" viruses in files that contain digitized data from scientific experiments. Plus, it seems to be somewhat buggy, crashing when it gets confused.
This watch was designed for the military. It has markers for the numbers and minute/hour hands that are made of glass tubes that contain radioactive tritium gas and a phosphorescent material. It has a quartz movement and an analog display. It is very easy to read in the dark. You can find these watches at some military surplus stores.
Integration, thermal engineering, testing, certification, hardware/software support, warranty, diagnostics, service contract, spare parts support.
Your mileage may vary. I bought a low-end Netfinity server from IBM, which is well supported by IBM. It had all of the features I wanted (SMP, SCSI, ECC), which were not available on any "consumer grade" box. I've built plenty of computers. Sometimes it's nice just to be able to pull it out of the box, plug it in, and start using it.
I wouldn't buy a Presario, Pavillion or similar low-end computer. I've heard too many horror stories about them.
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- connect the data line to an edge triggered flip-flop
- connect the flip-flop output to a parallel I/O port
- connect the read strobe on the I/O port to the reset line of the flip-flop
- connect the front panel LEDs to a parallel I/O port
Software:In the real-time clock interrupt service routine, read/reset the data activity flip-flops, write the state of the flip-flops to the appropriate front panel LEDs.
I've done this on embedded systems. Having the front panel LEDs under software control, instead of being hardwired, can be very useful. It takes minimal hardware and allows you to do creative things in the software for diagnostics.
No. Their half-lives are far too long. For an RTG, you need a radioactive isotope with a relatively short half-life, such as Pu238 or Sr90. See here.
There are large quantities of U238 (depleted uranium) left over from uranium enrichment processes. Arms reduction treaties and the retirement of obsolete nuclear weapons have resulted in a large number of Pu239 "pits" that are currently stored in secure DoE facilities.
You may be thinking of U-238, aka depleted uranium. Pu238 production was done by the Department of Energy using a unusual and expensive production process, not the normal process used to convert uranium to Pu239.
In the good old days, the police grabbed a bunch of shotguns (12 gauge riot guns), and fired at the rioter's legs or the ground in front of the rioters.
The fusion reactions commonly used are D-D (deuterium-deuterium) and D-T (deuterium-tritium). Deuterium ions can be boiled off a hot filament and electrically accelerated into a target that has been impregnated with deuterium and/or tritium.
See this page.
One reason that I can think of is configuration control. Maybe I want to make sure that only properly tested and certified releases of software are in the hands of the end users. They could have program listings, but not machine readable source code.
Nuclear batteries (radioisotope thermoelectric generators) usually use Pu238, an isotope of plutonium that is useless for creating nuclear weapons. The problem is that at several thousand dollars a gram for the Pu238, they are far too expensive for most applications.
If NASA sold some Moon rocks, the money would go into the federal government's general fund, not the NASA budget. So what would be the point of selling them?
Considering that Ron Paul ran for President on the Libertarian Party ticket, I doubt that his opposition to the amendment was based on financial support from the Bell companies.
Except for Louisiana, pre-revolution English common law is the basis for the legal system in the United States. Blackstone's Commentaries on the Laws of England was a popular legal text in the United States for many years after the Revolution.
Most of my spam comes from Asia, and it is in Chinese, Korean and occasionally Cyrillic. The majority of it originates in Asia. I've had my cow-orkers translate some of it for me. I don't know why I get the stuff, as I don't speak any Asian languages.
Does anybody else remember C-Rations? They were the predecessor of MREs. They came in a cardboard box, full of little OD green cans. You haven't lived until you have eaten Ham and Eggs, cold, out of a can. See Army Chow and Other War Atrocities by David Thayer, for a look at Army chow in the pre-MRE era.
The Left gets most of the heirs to family fortunes who feel guilty about their wealth.
Hydro works great until you have a drought, which is currently a major problem in Brazil. Plus, you have the environmental impact of dams.
The HDTV signals may be just as wide (6 MHz) as NTSC, but they can be more closely packed, saving spectrum. HDTV is much less susceptible to inter-channel interference.
If the FCC wants HDTV to take hold, they must mandate HDTV must-carry on cable and HDTV compatible tuners on new TV sets. 85% of the public gets their TV signals from cable or DBS. The FCC mandated the inclusion of UHF tuners in TV sets, and set performance standards for UHF tuners, to make UHF TV a commercial success. When the FCC let the market decide with AM Stereo, it was a disaster.
Programs that steal the focus from the current foreground program are also very annoying. I'm typing in a sentence, some program steals the focus, and it does random bad things when it interprets my keystrokes as commands.
I've had annoying problems with McAfee "finding" viruses in files that contain digitized data from scientific experiments. Plus, it seems to be somewhat buggy, crashing when it gets confused.
More evidence that direct democracy is a bad idea. Perhaps we have a new candidate for the post of Witchfinder General.
Elephants and goats can do a great job of destroying an ecosystem.
You also may want to do a google search on the comp.arch newsgroup. I think the topic has been discussed there.
The Soviets reverse engineered a number of American designs (IBM 360, PDP-11). They also did some original designs for special applications.
Some of the work was farmed out to other Warsaw Pact countries, such as the GDR.
This watch was designed for the military. It has markers for the numbers and minute/hour hands that are made of glass tubes that contain radioactive tritium gas and a phosphorescent material. It has a quartz movement and an analog display. It is very easy to read in the dark. You can find these watches at some military surplus stores.
Correlation is not causation.
Your mileage may vary. I bought a low-end Netfinity server from IBM, which is well supported by IBM. It had all of the features I wanted (SMP, SCSI, ECC), which were not available on any "consumer grade" box. I've built plenty of computers. Sometimes it's nice just to be able to pull it out of the box, plug it in, and start using it.
I wouldn't buy a Presario, Pavillion or similar low-end computer. I've heard too many horror stories about them.