Obviously someone from Northwestern Montana or a Great Northern fan was involved in naming that feature.
91 posts • joined 3 Jul 2009
Obviously someone from Northwestern Montana or a Great Northern fan was involved in naming that feature.
Tim Paterson did pay attention to Intel's reserving interrupts when he wrote QDOS/86-DOS for Seattle Computer Products, the lowest interrupt used by DOS was int 20H. It was IBM and maybe Microsoft that used the reserved interrupts for the PC's ROM-BIOS. IBM also made the blitheringly stupid mistake of using the NMI for the 8087 co-processor despite Inetl clearly stating the the NMI was NOT to be used for the 8087.
Peter G.: The USN's shortage of carriers was most crucial after the battles around the Solomon's in late 1942. Fortunately for the Allies, the loss of experienced airmen was even more severe problem for the IJN. What was probably an even more serious problem for the USN at that time was the poor quality of the torpedoes for the submarine force, it wasn't until mid 1944 that the sub force had a good supply of decent torpedoes.
A lucky stroke for the USN was in early 1943 was the availability of proximity fuzed shells.
The desal plant in Carlsbad that will b coming on-line soon was delayed for several years by environmentalists. One of the more bizarre arguments was the amount of sea life that would be killed after being drawn into the sea water intakes - of course no regard was given to the number of Delta Smelt that would be saved by the water in the Delta not being sent south.
A couple of interesting factoids - less energy is required to produce a given volume of water from RO than to get the same volume of water over the Tehachapis from norther Cal. The newest membranes will require less energy per volume of water than to get water from the Colorado river to San Diego.
Note that LBL is in California - CARB rules tend to discourage diesel autos, so most taxi's here are gasoline powered.
While 7 million barrels of oil may seem to be a lot, that's about one day's worth of motor vehicle fuel for the US.
"Cali" is not a common abbreviation for California, the most common is the USPS approved "CA", followed by "Calif". "Cal" is another common shortening of the name, though it is more used for college and university names, e.g. Cal (UC Berkeley - Go Bears), Southern Cal (USC), Cal Tech, Cal Poly, Cal State $city_name, Cal Lu, etc.
In addition, the 9th Circuit Court of Appeals covers the Western US in addition to the Golden State.
The production in the US was due to more than cheap energy, having all sorts of raw materials on hand was also a big help. Another big help was the machine tool industry seeing a war coming and engaging in a large scale program training people to run machine tools. Having managers picked on th basis of competency as opposed to part loyalty was another big help. Finally, given individual workers some incentive didn't hurt.
The downside of the big push for production was an incredible industrial accident rate, IIRC ~120,000 fatalities between December 1941 and May 1944.
One last fallout from WW2 was that American manufacturing developed a lot of ways to cut down on the amount of labor required to produce a given widget.
The map is missing Californium (unless I missed it). As for Seaborgium, I remember one quarter back in the 1970's where he'd be walking down the steps between the Greek Theater at Gayley Road while I was walking up those same steps…
Another good read from Tim.
The Concorde inlets had nothing on the Blackbird (A-12/YF-12A/SR-71) inlets having to go through several different configurations between Mach 0.0 to Mach 3.2. On top of all that, the inlets were designed to have a low radar cross section.
All the world is in tune, on a spring afternoon, when we're poisoning parakeets in the park...
As GBE wrote, the volume of the Grand Canyon is certainly abstract to anyone who has seen it in person. Near the Grand Canyon Village, the south rim is close to a mile higher than the Colorado River at the bottom of the canyon. Also keep in mind that there are no roads crossing from the south rim to north rim between Hoover Dam and maybe 50 miles upstream of the Grand Canyon Village.
There are still a few Ricochet repeaters hanging from streetlights around my neck of the woods. Thinking about it, Ricochet was a forerunner to the Light-Squared debacle, as Ricochet's business plan relied on using unlicensed spectrum - albeit LightSquared's spectrum was licensed, it wasn't licensed for what they wanted to use it for.
I'm pretty sure the 704 had FORTRAN and almost certainly had an assembler.
Mark's aunt Anna's foray into programming reminds me of the start of my first assembly a bit over a decade later. The prof introduced us to the instruction set of the year old intel 8008 and our first programming was done in octal and we ran the code on an 8008 simulator running on a CDC 6400. ISTR that the simulator was written in FORTRAN.
As for the article - that was a very nice tribute to his aunt.
ISTR that there is a pretty tight connection between the ownership of Solar City and Tesla...
A home battery does make perfect sense for people with solar panels. In California, solar production is essentially zero at 6PM PDT, where peak power consumption occurs 7PM PDT in the summer. This likely to lead to some pretty hefty rates for usage in the 6PM to 9PM time frame, so running off a battery during that time will likely bring significant savings in electric bills especially if the CPUC starts setting rates that have some connection with the reality of providing service. The CPUC and CalISO are already encouraging people to put solar panels on west facing roofs.
I've been researching batteries for exactly this purpose, and while lead-acid batteries intended for stationary service will do the job, their size is a bit impractical.
FWIW, the high at home was 33C today.
The Alco DH643's built for the Espee had a pair of 2150HP V-12's (Alco 251's). Note that American RR practice is to rate engines on power available to the transmission (input shaft of the traction alternator/generator for 99+% of American locomotives).
While Lew is correct in stating that the case walls do not need to contain firing pressure, the case head is a different story as it isn't fully supported in many guns.
My understanding is that SINS grade navigation units are much better than that and have been since the first SINS was installed on the Nautilus in 1958.
SINS = Ships Inertial Navigation System.
Anyone who would not bother to check that they were using genuine FTDI parts on a safety critical system is being even more of a scheisskopf than FTDI. Then again, anyone using Windows in a safety critical system has more than a few screws loose.
The sun puts out much more UV radiation in active periods as opposed to quiet periods, enough so that the ionization of the upper atmosphere increases by more than a factor of two over the quiet periods. Not sure if/how these variations affect the weather, my guess is that the differing levels of UV may affect cloud formation.
I remember hearing about Pascal MT+ back in the early 80's, then ran across an ad for it in a 1981 issue of Byte Magazine. Looked at the address and realized it was a house a block away from where my kids attended 3rd through 6th grades.
That's about what I remember as well. The ballot measure creating the California Coastal Commission was on the last state election that took place before I was old enough to vote.
Kind of nice to see the Commission go after the "big guys" for once, though they give way to much deference to the Hollyweird types.
If the applicable law is from the state of Washington then he won't have much of a case. OTOH, if the applicable law is from California, then Amazon can pretty much intercourse themselves as California permits enforcement of non-compete clauses in very narrowly defined circumstances AND Amazon would have to pay for the guy's salary during the duration of the non-compete clause.
One of the major reasons for Silicon Valley being what it is was that employees were free to move between companies.
Amazon would have a case if the guy divulged trade secrets, but they are pretty much barred from prior restraint in Calif.
My first exposure to Holdren was in the run-up on the June 1976 California proposition on nuclear energy in the state. Holdren then claimed that coal would be safer than nuclear and with the proper technology the largest numbers of deaths from using coal would be people killed by coal trains at grade crossings. Why he assumed that after spending money to make the coal power plants safe, he didn't think that any money would be spent on improving grade crossing safety…
Seems to me that he is more of an activist pretending to be a scientist than a scientist turned activist.
The CSIRO solar steam turbine *might* be amenable to thermal energy storage. If so, this may allow the turbines to run for a few hours after sundown. There is a California based company proposing to store steam/water in LP tanks for use in multiple expansion steam engines.
The ionosphere refracts radio waves, were the maximum angle of refraction is roughly proportional to the wavelength times the electron density. At a low enough frequency, the refraction angle can equal 180 degrees, where the low enough is on the order of 2 to 10 MHz depending on time of day and sunspot number.
That's the first thing that came to mind when reading TFA. I first saw RV Flip on a San Diego Harbor cruise in 1965 and came close to scoring a tour of the ship a few years ago.
I remember first reading about it in the March 1972 issue of Popular Electronics - in the Mac's Service Shop that was a carryover of when Electronics World was folded into PopTronics. Figured the slide rule was soon to be history.
For the Usains, the Bowmar Brains were another classic line.
Traffic Court has been there at least since the late 1960's, on the north side of CMB and just east of Kearney Villa Rd. To be fair, it doesn't really look like a courthouse.
For those unfamiliar with Tustin, "The District" is a shopping center with several restaurants in what used to be part of MCAS Tustin. It also happens to be a very short ride from work...
It was a hurricane until shortly before landfall and was an impressively large storm. Most of the damage came from the storm surge, coupled with coastline features that exacerbated the surge. The wind and rain from the hurricane caused relatively less damage than the hurricane that hit Long Island and parts north in 1938.
It is not incredibly difficult to make a house resistant to EF3 - EF4 tornadoes, and also not incredibly difficult to make part of a house survive an EF5 tornado. Many of the same details are useful for dealing with hurricanes. What's stupid is building stuff in flood zones of rivers.
As for water, reverse osmosis technology is becoming a practical source of water for arid areas with access to sea water (e.g southern California).
Science Applications International sounds more like it.
My brother got it as a gift 1964-65, plastic sailplane like body with foam wings and timer for camera (127 film, half frame). He never got the thing to fly long enough to get a picture, but he was all of 9 years old at the time.
Take a look at the California ISO website sometime during late summer and pay special attention to the solar output versus statewide load. Solar production peaks at 12 Noon, where peak load typically occurs at 6PM. This is not exactly news as I heard a PG&E engineer caution solar power enthusiasts about the time difference between peak solar product and peak power system load circa 1975.
There have been proposals for solar thermal plants using molten salts as both a heat transfer mechanism and thermal storage mechanism, permitting several hours of electric energy production after sunset. Another work-around is to redesign structures to have a higher thermal mass, run the A/C like crazy when the sun is shining and using the stored "cool" after sunset.
QDOS/86-DOS/PC-DOS/MS-DOS copied much of the CP/M API much the same way that Linux copied the UNIX API, but it was a rather different beast underneath. The COPY command was more like the UNIX cp command than PIP, though COPY was internal to command.com. DOS did not have or need anything like the MOVECPM command. TSR capability was part of DOS from the 86-DOS days. MS-DOS 2.X introduced subdirectories, rudimentary stdin/stdout and a form of piping to be a bit more like UNIX.
The peak year for births in the US was 1957, so the baby boom in the US lasted well past the early 1950's. With life expectancies in the high 70's, it will a while before the boomers start dying off in large numbers. WW2 vets on the other hand are starting to get scarce, with the youngest at 85 - and a large number of baby boomers are children of WW2 vets.
My recollection is that the hangars are in Tustin (where I-405 splits off I-5 in Orange County). This is about 2 miles from where I now work, so may have to take some fresh air breaks next week.
Anyone remember the brouhaha over MS using "Internet Explorer" for its browser without checking to see if "Internet Explorer" was already trademarked?
The Cassinin was launched one day before the fictional launch of the Jupiter 2.
It is great to see that Cassini is still collecting data.
I heard it was the other way around, where the Packard built Merlins used SAE threads and were supposedly bit stronger than the original RR built Merlins.
But is standard (Stephenson) gauge still 16.5mm with a foot being 4mm long??
On this side of the lagoon, it's 3.5mm all the way, though I had one neighbor who preferred 3/16".
IIRC, PIP was a separate executable file, while COPY was internal to COMMAND.COM in at least 86-DOS if not QDOS. What M$ did to make PC-DOS 1.0 out of 86-DOS 1.14 was to change the prompt from A: to A>, added "DEL" as an alias for ERASE and not ship the SCP utilities such as the assembler, the Z80 code translator and READCPM.
86-DOS allowed AUX, CON and PRN to be treated as filenames, where CP/M required some gyrations to use device names in place of a disk filename.
Song title was Get 'em OUT by Friday - though I can se wanting to get the brew in by Friday...
Reminds me of when the Reg covered the giant hogweed invasion in New York state...
Sounds more like a mini-satellite to me. A microsatellite would be more along the lines of Vanguard 1, which weighed in at 1.5kg.
Cesium needs to be in an inert atmosphere to say silver and shiny. Perusing an MSDS on metallic cesium would discourage most people from wanting to deal with the non-radioactive stuff.
Note that radio-isotopes can easily be detected at levels far below what would be considered harmful. As an example, Carbon 14 dating works because all food sources have some carbon-14 in them, but there has been no hysteria about removing carbon 14 from the food chain.
The global impact of radiation leakage from Fukushima is still dwarfed by the remnants of atmospheric testing of nuclear weapons. It is also even less of an issue on a global scale than naturally occurring radioactive materials such as the potassium 40 in your body.
The Milwaukee speeds were from timings aboard regular runs of the Hiawatha between Milwaukee and Chicago. While the peak DBHP occurred below 100 MPH. the loco's were still putting out a significant amount of power. One limitation for the top speed of steam locomotives is dynamic augment, which is lessened with 84 inch drivers and just three coupled axles on the 3463.
As far as the Pennsy T-1's, the design spec called for 100 MPH with 1,000 trailing tons.
Also bear in mind that larger American loading gauge allows for larger boilers - with the gas flow area being critical for power production.
I'd bet on the AT&SF Hudson - similarly design loco's used by the Milwaukee (Baltics on the CMStP&P) were hitting 105 - 110 MPH in regular service while pulling a much heavier train than the Mallard on its record run. The Pennsy T-1 would almost certainly be faster, there were reports of it hitting 125 MPH in service.
How can one take your posting seriously if you don't know the difference between a Pressurized Water Reactor and a Boiling Water Reactor? FWIW, Fukushima used BWR's.
PWR's can be set up for natural convection cooling, with the main problem in supplying make-up water to the secondary side.
The authors made a pretty good argument that the rivets played an important role, and the press release does a very poor job of summarizing the book.
The key point is that the rivets on the first and last fifth of the ship had to be set by hand, which required that the rivets be made from wrought iron as opposed to steel. The rivets on the other three fifths of the ship were set with hydraulic clamps, which allowed the use of steel rivets. It is extremely difficult to make wrought iron with the same consistency as steel.
The authors pointed out that icebergs have a slushy surface, so an impact would cause the hull plates to bend rather than tear as would be the case of striking a coral reef. The failure of the rivets to hold the hull plates together allowed a much larger volume of water to enter the hull. Had the rivets held, the Titanic may have had enough pumping capacity to allow it to reach port or take a much longer time to sink.
The poor quality of rivets was by no means the only stupid mistake that lead to the sinking of the Titanic.