That was the first Ariene V flight. Wikipedia has an article and the accident report is here.
Basically, the error was an integer overflow in code reused from the Ariene IV for which the range check had been deliberately eliminated as a performance measure since (in the Ariene IV) it could not overflow. That assumption is not valid for the Ariene V.
To add insult to injury, the functionality provided by the component is not needed at or after liftoff, so could safely have been disabled at that time. Further, the original reason for the function was to allow, in older Ariene models, for the ability to suspend the launch sequence at or after -9 seconds and resume without having to redo some steps.
The lesson is that code cannot save one from a wrong design (although bad code can ruin a good design).
A great book that describes a lot of old skills, crafts, and techniques is The Technical Arts and Sciences of the Ancients by Albert Neuburger translated to English by Henry L. Brose about 1930. A recent edition is from 1969, but I don't think it is currently in print.
It's quite neat the ingenuity of people when brute force (engines and motors) is not available.
Better data is probably most important and having more data makes having better data more likely. It would probably make sense to analyse the impact of each datum on the accuracy of the ruslt, then choose a better algorithm using the most influential data. That is, a simple algorithm on good data is better than a great algorithm on mediocre data.
Woodhenge is about an half-hour to hour walk (past the barrows) roughly to the NE from Stonehenge. There is no wood left (obviously), but brown-painted concrete posts have been placed to replicate the original locations. more...
Maintenance programming in general is an excellent place to start. There is no better way to appreciate and learn about good and bad architecture, good and bad code, and to develop understanding of those attributes which influence maintainability. It allows you to focus on how to build without the interference of what to build.
Well, I have a Brittany Setter (cross betwixt a Brittany Spaniel and an English Setter), although her name is Elanor (after the flower in LoTR) and she does get in some pecadillos (mostly consisting of toodling off into the back 40 for hours at a time ignoring calls to return); but I can't see why that would be news of interest to anyone but me (but I'm sure that she doesn't care).
'75% coverage of the "license area" (for a Nationwide license) seems daunting after four years,...'
Not really, since it is actually 75% of the population in the Nation. That's about 250M. The top 5 or 6 cities has a pop. of about 20M; the urban areas are about 80M. As a rough oestimate, it would take 50-60 cities (including the urban areas) to achieve this coverage. For flexibility in development, I would use 100 cities (with less of the surrounding urban areas) for the initial placements and expand outward from there to achieve the remaining required coverage.
Slashdot Mirror
Well, how about:
In South Korea only old people sniff dogs?
In Soviet South Korea, you sniff dogs!
Not necessarily, but they are at least nonary.
That was the first Ariene V flight. Wikipedia has an article and the accident report is here.
Basically, the error was an integer overflow in code reused from the Ariene IV for which the range check had been deliberately eliminated as a performance measure since (in the Ariene IV) it could not overflow. That assumption is not valid for the Ariene V.
To add insult to injury, the functionality provided by the component is not needed at or after liftoff, so could safely have been disabled at that time. Further, the original reason for the function was to allow, in older Ariene models, for the ability to suspend the launch sequence at or after -9 seconds and resume without having to redo some steps.
The lesson is that code cannot save one from a wrong design (although bad code can ruin a good design).
Because implementation (manufacturing) is a commodity service; research, design, and developement is hard.
I would agree if the parties are acting in good faith. Many involved in this exercise were not; they were just there to rubber stamp.
'As Brown correctly points out, 'This content speaks for itself.'
Indeed it does!
Sailboats
'... or simply going from NYC to LA?'
Waggons pulled by horses or oxen - your choice!)
I was thinking of an automatic weapon. Tracers are not that useful in a single shot firearm.
Tracers.
It stands for 'Beyond Carbonear' leaving civilization for the boonies.
You're writing this like it's a bad thing!
It's probably gas from the sauerkraut and sausages that they had earlier.
And here they are:
sqrt(-pi) = Transcending Irrational Imaginary Natural Disasters
I like the fact that the radio lets you call collect ;^)
It's quite neat the ingenuity of people when brute force (engines and motors) is not available.
Better data is probably most important and having more data makes having better data more likely. It would probably make sense to analyse the impact of each datum on the accuracy of the ruslt, then choose a better algorithm using the most influential data. That is, a simple algorithm on good data is better than a great algorithm on mediocre data.
Why did he keep identified copies of all the messages if there was never an intent to release or use them?
Woodhenge is about an half-hour to hour walk (past the barrows) roughly to the NE from Stonehenge. There is no wood left (obviously), but brown-painted concrete posts have been placed to replicate the original locations. more...
That's because their major asset is usually covered by clothing.
Maintenance programming in general is an excellent place to start. There is no better way to appreciate and learn about good and bad architecture, good and bad code, and to develop understanding of those attributes which influence maintainability. It allows you to focus on how to build without the interference of what to build.
(P.s. You spelt Brittany wrong.)
Solving the solution is only needed when dealing with politicians.
Not really, since it is actually 75% of the population in the Nation. That's about 250M. The top 5 or 6 cities has a pop. of about 20M; the urban areas are about 80M. As a rough oestimate, it would take 50-60 cities (including the urban areas) to achieve this coverage. For flexibility in development, I would use 100 cities (with less of the surrounding urban areas) for the initial placements and expand outward from there to achieve the remaining required coverage.
I would also include that all the raw data be available.