Actually, the exisiting water moderated reactors are quite safe. When these is insufficent coolant, there is also insufficent moderator.
Changes reducing moderator density [heating beyond specification, formation of saturated steam bubbles] act to reduces the neutron's probablity of capture, slowing the reaction. The pebble bed designs don't have this negative feedback in their design, they just try to make the fuel elements more tolerant of extreme tempetures.
The OS/2 XCOPY command can make a bootable copy of a disk - the disk geometry need no be the same.
I don't have reference materials here, but assuming C: and D: are disks [or partitions]
XCOPY/S/X C: D:
should create a bootable image of C on D
[Note, many older phone systems used Microsoft OS/2 1.2 - not IBM OS/2, also HPFS partitions are limited to 64 Gig]
I recall seeing the story in the 1960's [yes I'm _that_ old:-) ]
The inventor was attempting to patent ergonomic wheelbarrow grips.
The patent offices 'amplified' his claims, and granted a patent for the wheelbarrow [only a few thousand years of prior art].
At my day job, I'm trying out the AWStats log file analyzer. Its a fairly large e commerce site, so that's about 3 gigs of access logs per day.
IE usage is about 10% Firefox is about 4.8% Other Mozilla/Netscape/Camino family browsers are about 2 % Safari is about 1% Opera is less common than WebTV! [on par with phone browsers]
Its been close to thirty years since I last wrote anything in FORTRASH^H^H^H^HRAN, but I seem to recall that INTEGER data types [variables beginning with the letters 'I' through 'N' by default] were all signed.
In fact, all FORTRAN datatypes are signed [at least through F77 & ratfor, I've never looked at F90]
Today's D SLR's are for the most part a comprimise as the current electronic viewfinders are not suited to all photographic uses. [power hungry, lower resolution, display lag].
These are all subject to improvement with time, the EVF's available after a few more generations of development will be at least as usable as today's reflex viewfinders.
Some photographers will continue to insist on a viewfinder that is held close to the eye, as opposed to the large screen on the back of the camera. That way, you do fine camera pointing by moving your head, instead of wobbling the camera around at arm's length.
All it takes is a single example to invalidate a general assertation.
My wife had breast cancer _after_ the birth of her second son. [and was able to obtain then experimental 'lumpectomy' treatment, in place of the standard 'radical masectomy']
Cancer incidence as a whole may be attributable to some mix of toxins, age [at discovery, at childbirth], screening and dozens of other variables.
Since R.A.H. was buried at sea, the results of him spinning in his grave effect the angular momentum of the Earth, and can be directly measured by changes in the length of the day and year.
Since the original movie was perpetrated, the standards bodies have not needed to add any 'leap seconds' - indicating that the system has gained angular momentum from some external influence.
Wardencliffe - broadcast power
on
Tesla Special on PBS
·
· Score: 2, Informative
Part of my daily commute takes me past the site of Tesla's broadcast power experiment. Today, the only visible trace is the street sign 'Tesla St' conecting NY Rt 25a and North Country road.
[about 3 miles from the LILCO/Shoreham nuke reactor site, and about 8 miles from Brookhaven National Lab]
I'm at work at the moment, so I don't have a mac for testing, but this sounds similar to the graphical session history from IBM's Web Explorer [developed about the same time as Mosaic]
Before the IBM PC existied, microsoft [they did not capitalize their name back then] sold programming interpeters and compilers for CP/M-80 systems [S-100 buss, Apple 's with a Z80 'softcard' and oddball systems like my Osborne/1]
They were a minor vendor, offering no unique products. [Then and now, development tools are a small market].
Assuming that Bill Gate's mom did not make the critical IBM connection [or the author of QDos did not sell all right to microsoft]:
IBM would still have introduced their 5160 'PC', with the same hardware configurations as originally shipped.
IBM would have still provided a choice of at least two operating systems [CP/M-86 and the pSystem]
The microcomputer software vendors would still have had difficulty with the transition to 16 bit software [QDos was actually an easier target than CP/M-86, when starting from CP/M-80 ver 2.2]
Z80 add on cards [Baby Blue, Blue Lightning] would have remained popular for a while longer [until 1985 or so]. Developers would have continued improving common code for CP/M-80 v3.x and 'tiny' model 16 bit executables.
Terminal based systems would have survived longer in the mass market [MP/M-86]
The word processing market leaders [Electric Pencil, WordStar, Valdocs] would still be upset by the entry of WordPerfect.
Lotus would still have introduced it's VisiCalc clone. VisiCorp would still have squandered an early lead [anyone remember VisiOn office?].
[BTW, Lotus 123 was available for CP/M-86, and non-PC based MS-DOS systems [Zenith Z100, DEC Rainbow] in our timeline. Platform portability combined with speed is possible]
Compaq would still clone the PC BIOS [the rest of the hardware was fully specified, as a result of prior anti-trust rulings against IBM]
Without the clones, the world would look very different - more non PC machines surviving [Epson, Osbourne, TRS, Amiga, Atari - even NeXT]. A lot of the read IBM PC's would be running 3270 terminal emulators & APPC client/server applications [both of which are quite similar to today's browser based applications]
About the time of the introduction of the PC/AT, MP/M-286 would already have been available. The Apple///, Lisa and Macintosh systems would still have been introduced.
Power users on the PC/AT [and its clones] would use MP/M-286 as a series of virtual consoles, with tasks continuing to execute in the background. A BBS system might be one of the backgroud tasks. [OS/2 1.0 equivilant - but in 1984]
Software vendors, envying Lotus's display speed, would start directly accessing the video buffer. MP/M would use protected mode memory access to share the hardware's video buffer - DRI's GEM.
Altair, Heath/Zenith and other S-100 manufacturers would still drop out of sight. Server class machines [SASI/SCSI disks, heavy duty power supplies] would adopt the PC/AT buss. [The EISA and MicroChannel designs would still be introduced about 1987]
Fast forwarding to today.....
Linux would still have been developed, following much the same path.
Computer networking would still be as common.
WIMP interfaces would be common.
Client/Server and other distributed processing architectures would still be in use.
I would hope that vendor lock-in could have been avoided [unless DRI started favoring/distributing 'office' software] - interface and file format standards might be more stable [many more vendors in all software categories].
Since DRI's multitasking grew [like UNIX] from a multiuser orientation, it would likely be more secure than systems descended from extended memory managers.
microsoft might still be around - but likely still a development tool vendor - and complaining about gcc, cvs, emacs [and Java?] competing with their products.
One of the reasons IBM is porting office [rather than simply using the Lotus SmartSuite applications] is their aquisition of Rational, and all of Rational's project management / analysis / design tools.
Some of the current tools depend on MS Office templates & run Office applications. IBM would need the capability to read, edit or create documents with with full file format compatability for all the interum stages of conversion to platform agnostic tools. [have to be able to exchange files with folks still stuck in Windows]
Several of the tools in the 'Rational Unified Process' use Microsoft Word document templates for their on disk format.
If IBM wants to make the entire Rational suite available on Linux, and retain compatibility [esp backward compatibility] they need to be able to read, create and update Office file formats.
My new employer is in the process of taking back control of an application that was designed by a US based consulting company, and implemented somewhere in India.
Our judgement is that their development process is out of control, producing divergent results in response to bug fixes.
The consulting company also insisted on using the Rational suite of applications - but their use cases, test plans & schema documents are not even in revision control! [let alone as part of UML models]
I'm starting a new position this coming Monday. My new employer was dissatified with the output of an outsourcing / consulting firm.
They used a mixed model, with US based management and design, and Indian grunt coders - the major difficulty was that the software modules delived to date failed to meet specifications, event the specifications originated by the outsourcing vendor.
Hopefully, this will have a better outcome than than the last time I was taking over an outsourced project. This past summer, I never was able to obtain a full copy of the source code archive, documentation or specifications from the Ukrainian outsourcing company - I did obtain a sufficent subset to see that over half of their code would need to be rewritten, refactored or simply discarded before the project could be delivered to users.
Actually, Novell networking predated the IBM PC by a couple of months [first shipped late 1980].
The product was called 'ShareNet' and could connect Apple ]['s and several flavors of hardware running CP/M 2.x [including Z89, Osbourne/1 and most S-100 systems].
This was later extended to support additional client OS's [M/PM, CP/M 86, SB/MS/PC DOS 1.0 later DOS 2.x] and network topologies [Arcnet, Ethernet, Omninet]. That is when their flagship product was renamed to "NetWare" [about 1983]. When the PC/AT was introduced, Novell ported their OS from their 68000 based system to both 8086 and 80286 PC CPUs [NetWare/S, NetWare/86, NetWare/286.
Advanced NetWare / 286 [1985] added multithreaded design and os expansion via 'Value Added Processes' [I wrote a couple, including a licence manager for our vertical market application]. VAPs had to be loaded at boot time - they could be disabled but not unloaded.
NetWare 386 [and later versions] were non-bootable, and launched from a DOS session. [The DOS session could be dropped and the space added to the memory pool]. They featured dynamic loading and configuration of most network resources [hardware drivers, protocols, routing settings, disk mirroring and backup]. The NetWare OS was multithreaded - but not preemptivly multitasked - no virtual memory was available.
This brings us to 1987 - and the introduction of IBM's first 80386 systems...some of which are probably still running NetWare 3.x today.
Slashdot Mirror
Just simple forced harmonic oscilation. Exactly like a sream of air [or a bow] vibrating a violin string.
One of my professers [at Brooklyn Poly] analyized the failure for his doctoral dissertation. [that would have been about 1940 or so]
He found that the Bronx - Whitestone bridge had the same failure modes, and was responsible for designing some remedial alterations to the structure.
Soviet designed, graphite moderated, breeder / power reactors were considered 'safe'?
Then they don't do anything.
Actually, the exisiting water moderated reactors are quite safe. When these is insufficent coolant, there is also insufficent moderator.
Changes reducing moderator density [heating beyond specification, formation of saturated steam bubbles] act to reduces the neutron's probablity of capture, slowing the reaction. The pebble bed designs don't have this negative feedback in their design, they just try to make the fuel elements more tolerant of extreme tempetures.
The OS/2 XCOPY command can make a bootable copy of a disk - the disk geometry need no be the same. I don't have reference materials here, but assuming C: and D: are disks [or partitions] XCOPY /S /X C: D:
should create a bootable image of C on D
[Note, many older phone systems used Microsoft OS/2 1.2 - not IBM OS/2, also HPFS partitions are limited to 64 Gig]
I recall seeing the story in the 1960's [yes I'm _that_ old :-) ]
The inventor was attempting to patent ergonomic wheelbarrow grips.
The patent offices 'amplified' his claims, and granted a patent for the wheelbarrow [only a few thousand years of prior art].
At my day job, I'm trying out the AWStats log file analyzer. Its a fairly large e commerce site, so that's about 3 gigs of access logs per day.
IE usage is about 10%
Firefox is about 4.8%
Other Mozilla/Netscape/Camino family browsers are about 2 %
Safari is about 1%
Opera is less common than WebTV! [on par with phone browsers]
The old IBM Web Explorer [circa 1993] did that [and it was a nice feature].
Its been close to thirty years since I last wrote anything in FORTRASH^H^H^H^HRAN, but I seem to recall that INTEGER data types [variables beginning with the letters 'I' through 'N' by default] were all signed. In fact, all FORTRAN datatypes are signed [at least through F77 & ratfor, I've never looked at F90]
see http://www.oracle.com/technology/tech/macos/index. html for Oracle's page.
These are all subject to improvement with time, the EVF's available after a few more generations of development will be at least as usable as today's reflex viewfinders.
Some photographers will continue to insist on a viewfinder that is held close to the eye, as opposed to the large screen on the back of the camera. That way, you do fine camera pointing by moving your head, instead of wobbling the camera around at arm's length.
I recall that the Olympus E1 D-SLR has a built in ultrasonic cleaner. When the lens is changed, the camera vibrates the sensor to shake dust off it.
All it takes is a single example to invalidate a general assertation. My wife had breast cancer _after_ the birth of her second son. [and was able to obtain then experimental 'lumpectomy' treatment, in place of the standard 'radical masectomy'] Cancer incidence as a whole may be attributable to some mix of toxins, age [at discovery, at childbirth], screening and dozens of other variables.
Its actually more restrictive than that.
NT's C2 certifiaction was for a particular model of Compaq hardware [an old P5/EISA box] no network interface, and NT 3.5 [with specified patches].
The certification did not include adding _any_ additional software or hardware to the basic configuration.
This is not too recent a problem.
I recall a letter to either Popular Mechanics or Popular Science, from an inventor, complaining that the patent he was awarded was too broad.
He was trying to patent an ergonomic grip for a wheelbarrow - he received a patent on the wheelbarrow - a device with centuries of prior art.
Since R.A.H. was buried at sea, the results of him spinning in his grave effect the angular momentum of the Earth, and can be directly measured by changes in the length of the day and year. Since the original movie was perpetrated, the standards bodies have not needed to add any 'leap seconds' - indicating that the system has gained angular momentum from some external influence.
Part of my daily commute takes me past the site of Tesla's broadcast power experiment. Today, the only visible trace is the street sign 'Tesla St' conecting NY Rt 25a and North Country road.
[about 3 miles from the LILCO/Shoreham nuke reactor site, and about 8 miles from Brookhaven National Lab]
I'm at work at the moment, so I don't have a mac for testing, but this sounds similar to the graphical session history from IBM's Web Explorer [developed about the same time as Mosaic]
Before the IBM PC existied, microsoft [they did not capitalize their name back then] sold programming interpeters and compilers for CP/M-80 systems [S-100 buss, Apple 's with a Z80 'softcard' and oddball systems like my Osborne/1]
///, Lisa and Macintosh systems would still have been introduced.
They were a minor vendor, offering no unique products. [Then and now, development tools are a small market].
Assuming that Bill Gate's mom did not make the critical IBM connection [or the author of QDos did not sell all right to microsoft]:
IBM would still have introduced their 5160 'PC', with the same hardware configurations as originally shipped.
IBM would have still provided a choice of at least two operating systems [CP/M-86 and the pSystem]
The microcomputer software vendors would still have had difficulty with the transition to 16 bit software [QDos was actually an easier target than CP/M-86, when starting from CP/M-80 ver 2.2]
Z80 add on cards [Baby Blue, Blue Lightning] would have remained popular for a while longer [until 1985 or so]. Developers would have continued improving common code for CP/M-80 v3.x and 'tiny' model 16 bit executables.
Terminal based systems would have survived longer in the mass market [MP/M-86]
The word processing market leaders [Electric Pencil, WordStar, Valdocs] would still be upset by the entry of WordPerfect.
Lotus would still have introduced it's VisiCalc clone. VisiCorp would still have squandered an early lead [anyone remember VisiOn office?].
[BTW, Lotus 123 was available for CP/M-86, and non-PC based MS-DOS systems [Zenith Z100, DEC Rainbow] in our timeline. Platform portability combined with speed is possible]
Compaq would still clone the PC BIOS [the rest of the hardware was fully specified, as a result of prior anti-trust rulings against IBM]
Without the clones, the world would look very different - more non PC machines surviving [Epson, Osbourne, TRS, Amiga, Atari - even NeXT]. A lot of the read IBM PC's would be running 3270 terminal emulators & APPC client/server applications [both of which are quite similar to today's browser based applications]
About the time of the introduction of the PC/AT, MP/M-286 would already have been available. The Apple
Power users on the PC/AT [and its clones] would use MP/M-286 as a series of virtual consoles, with tasks continuing to execute in the background. A BBS system might be one of the backgroud tasks. [OS/2 1.0 equivilant - but in 1984]
Software vendors, envying Lotus's display speed, would start directly accessing the video buffer. MP/M would use protected mode memory access to share the hardware's video buffer - DRI's GEM.
Altair, Heath/Zenith and other S-100 manufacturers would still drop out of sight. Server class machines [SASI/SCSI disks, heavy duty power supplies] would adopt the PC/AT buss. [The EISA and MicroChannel designs would still be introduced about 1987]
Fast forwarding to today.....
Linux would still have been developed, following much the same path.
Computer networking would still be as common.
WIMP interfaces would be common.
Client/Server and other distributed processing architectures would still be in use.
I would hope that vendor lock-in could have been avoided [unless DRI started favoring/distributing 'office' software] - interface and file format standards might be more stable [many more vendors in all software categories].
Since DRI's multitasking grew [like UNIX] from a multiuser orientation, it would likely be more secure than systems descended from extended memory managers.
microsoft might still be around - but likely still a development tool vendor - and complaining about gcc, cvs, emacs [and Java?] competing with their products.
One of the reasons IBM is porting office [rather than simply using the Lotus SmartSuite applications] is their aquisition of Rational, and all of Rational's project management / analysis / design tools.
Some of the current tools depend on MS Office templates & run Office applications. IBM would need the capability to read, edit or create documents with with full file format compatability for all the interum stages of conversion to platform agnostic tools. [have to be able to exchange files with folks still stuck in Windows]
The late, unlamented CyberPromo [Sanford Wallace] was a nusance back about 1991 or so, when all I has was a Compu$erve account.
...]
Adding insult to injury, CI$ imposed a $0.75 charge for each message originating in a non CI$ email system [internet, GEnie, Prodigy
replying a trifle late -- but....
Several of the tools in the 'Rational Unified Process' use Microsoft Word document templates for their on disk format.
If IBM wants to make the entire Rational suite available on Linux, and retain compatibility [esp backward compatibility] they need to be able to read, create and update Office file formats.
My new employer is in the process of taking back control of an application that was designed by a US based consulting company, and implemented somewhere in India.
Our judgement is that their development process is out of control, producing divergent results in response to bug fixes.
The consulting company also insisted on using the Rational suite of applications - but their use cases, test plans & schema documents are not even in revision control! [let alone as part of UML models]
I'm starting a new position this coming Monday. My new employer was dissatified with the output of an outsourcing / consulting firm.
They used a mixed model, with US based management and design, and Indian grunt coders - the major difficulty was that the software modules delived to date failed to meet specifications, event the specifications originated by the outsourcing vendor.
Hopefully, this will have a better outcome than than the last time I was taking over an outsourced project. This past summer, I never was able to obtain a full copy of the source code archive, documentation or specifications from the Ukrainian outsourcing company - I did obtain a sufficent subset to see that over half of their code would need to be rewritten, refactored or simply discarded before the project could be delivered to users.
An automated floor cleaner was described in some detail in Heinlein novel
- The Door into Summer
Compared to Heinlien's idea, the Roomba is missingAuto return to charging station
auto emptying of dust container
Avoidance of occupied rooms
A claw to pick up small, potentially valuable items [change, jewlery] before being sucked into the vacumn
The claw would be the most difficult to implement [image recognition, design and manipulation of the claw]
Wet cleaning [spray & squegee] would be nice too, matching the capabilites listed in the book.
Actually, Novell networking predated the IBM PC by a couple of months [first shipped late 1980]. The product was called 'ShareNet' and could connect Apple ]['s and several flavors of hardware running CP/M 2.x [including Z89, Osbourne/1 and most S-100 systems]. This was later extended to support additional client OS's [M/PM, CP/M 86, SB/MS/PC DOS 1.0 later DOS 2.x] and network topologies [Arcnet, Ethernet, Omninet]. That is when their flagship product was renamed to "NetWare" [about 1983]. When the PC/AT was introduced, Novell ported their OS from their 68000 based system to both 8086 and 80286 PC CPUs [NetWare/S, NetWare/86, NetWare/286. Advanced NetWare / 286 [1985] added multithreaded design and os expansion via 'Value Added Processes' [I wrote a couple, including a licence manager for our vertical market application]. VAPs had to be loaded at boot time - they could be disabled but not unloaded. NetWare 386 [and later versions] were non-bootable, and launched from a DOS session. [The DOS session could be dropped and the space added to the memory pool]. They featured dynamic loading and configuration of most network resources [hardware drivers, protocols, routing settings, disk mirroring and backup]. The NetWare OS was multithreaded - but not preemptivly multitasked - no virtual memory was available. This brings us to 1987 - and the introduction of IBM's first 80386 systems...some of which are probably still running NetWare 3.x today.