This was an old Higher School Certificate problem in Australia as I recall...
Envision a circular building of radius r. There is a guard dog for this building, chained to it somewhere on the perimeter of the building. The chain is exactly 1/2 the circumference of the building.
So the dog is able to reach the exact opposite point of the building by going either way around it.
Question: What is the area the dog can guard ?
The lower part is easy - it's a semi-circle. The upper parts are trickier - the path of the dog traces a path reminiscent of a cardioid.
Music on Rover Team Album Home movies
on
Mars Rover Breaks Free
·
· Score: 3, Informative
Hey -
On the Nasa Home Movies page, there is a very nice photo montage called
"Rover Team Album" 2:49 at 11meg
It has some very cool electronica music to go with it. I've been searching, but can't find any indication as to exactly what the music is.
Is there any way to re-encode the newer licensed.WMV files ? For example, many of the videos coming out of ConsumptionJunction:) are licensed.
When you run the media file, MediaPlayer goes out to the net to "obtain a license" for the file. A few seconds go by, then it says it got one, and to click Play to view the video.
Well and good, if a real hassle. But now some of the videos are unplayable because the license server isn't there any more.
How can one re-encode the videos from.WMV to plain old.MPG or.AVI ?
The comment about the discovered planets may be true, but look at what they are able to see... They are detected by seeing the wobble they produce on their host star.
Given that you're looking for indications of something that is able to make a *star* wobble in space, of course all they can see are huge Jupiter-sized planets. Something similar to Terra simply doesn't have enough of an effect on the host star to be detectable with today's technology.
I'm certain that Terran-sized planets are out there (there's no reason for them *not* to be). We just can't "see" them yet. It's like trying to see a small cigarette glow in front of a roaring bonfire...
There are three authors I would find to be amazingly good at the development of technology, and I'm sure that everyone else here would have three *other* choices. But these are mine, and I like them:)
1) William Gibson. Neuromancer. Although he really didn't (and apparently still doesn't) know much at all about computers, he has a crystalline method of prose that stands out. His descriptions of the technology are vivid, but in a protagonist-situation sense. He doesn't describe the computers in detail, but as tools being used in a societal environment. Awesome.
2) David Drake. Hammer's Slammers books. Some of the best military science fiction around. David Drake was a commander I believe in the only tank regiment in Vietnam, and writes from some experience. His descriptions of where military hardware can go, and more importantly, how it can be used, anregreat. You get drawn right in to the "of course this is what warfare will/can look like".
3) Best for last, but probably too much for a course. Peter F. Hamilton. The Night's Dawn trilogy. Actually 6 books in the US. This set has it all - Neurotech, biotech, genetic engineering, high-tech. And it pretty much all seems like it really could happen. The first book takes a while to get into, but then you can't put them down. The universe, and the technology that makes it all work, are described in a very cool seamless way, and it all seems to make sense. A very black/white choice here. Some people loved the books, others can't stand them. But then, that makes it interesting, doesn't it ?
Gotcha. I started poking through the code some more, but missed that:( Ah well.
Different issue now - the cut marks. I'm assuming you're supposed to cut at the lines pointed to by the arrows, right ? If you cut off the left and bottom margins, the bottom of the page still has the upper arrow of the cut-mark pointing down, and the right arrow pointing left at the left margin. These are within the viewable area.
Shouldn't the cut marks only have arrows in the discardable part of the image ?
Very cool work - thanks ! Very Nasty Code - thanks !
Can you give us more of a description of *why* the code is doing, as opposed to *what* ? What are the deciding factors for the layout of the function blocks ? What about the colored lines within ? I know that forks represent code forks, but the curves ?
For example, I took a look at drivers/net/tokenring/olympic.c and it shows one function sprintf_info as a large block with a simple green spiral in it. No if/switch statements, so no forks in the line. Does the length of the line/spiral represent the length of the function ? I thought that was the size of the box...
Need Input !
Possible enhancement - show partial call graphs, just within.c files. Perhaps thin faint arrows showing which functions call which funtions within the file. No external functions, or maybe just thinner/fainter arrows pointing in the direction of the called external function.
No, email is definitely not enough. My contracts have all been paper, with signatures on EACH page.
With email it would be way to easy for one party to make changes to the details (scope of work/hours/rate/etc) and in the event of litigation, who says which is the right version.
Anything in bits on disk can be changed, email, email logs, etc. Get paper. Not fax, but original copies.
SVideo is an analog format. You would convert from digital mpeg-2 format to analog SVideo, pump to your computer, and capture. Lots of potential for degradation of the picture.
The main reason I would want it is for recording to VCD. Move the mpeg2 file directly to your computer, resample to vcd format, and burn. Perfect for permanent backups of shows you want to keep.
Now ideally Tivo will come out with a version that has a built-in burner. Click a button and burn a show to VCD right in the box.
Damn. Who is he to decide whether I should be able to read online or not. I find it arrogant and presumptious of him to force me to come to the library to read. Sometimes I *like* to go to a library or bookstore for a couple of hours and browse. But sometimes I really really like the convenience of just sitting down *at home* and reading. He/they should be facilitating. Make the information available is many forms.
I've been looking for a motherboard rack system for a while, with no luck. By that I mean one with 40 open shelves that are drilled and punched for motherboard mounting, like a standard case MB tray. The motherboard would screw down to the left, and the other side of the tray should have a 3-space drive cage. The trays should be on drawer-style runners. Rather than multiple power plugs in the back, I want a honking big power supply on the bottom to feed everything. Why have 40 individual power supplies, one per MB ? The Mongo (tm) Power Supply should have 40 ATX motherboard power connectors running up the side of the case, and about 120 drive connectors. This way, you just bolt your MB to a tray, pop a floppy, CD and HD into the cage, hook up power, and you're up ! All of that is easy to build, except for the power supply. It would need to be about a 12kw supply (300W x 40 motherboards). Still better than having 40 little ATX power supplies with all their power cords... To be truly excellent, it should have a UPS built in. I would imagine this puppy would take up about 8U at the bottom of the rack. Talk about perfect for building a Beowulf:)
All right. Given this, how do the two compare ? The Tivo and Replay that is. Pros and cons for each ? Anywhere else you can get the Tivo information from ? That website for WebTV from Micro$oft ?
Agreed. Genius. And somehow seems to attract not-the-best interpretations of his work. Has anyone read Nightfall ? The original short story and the book ? Tremendous, particularly the short story. The movie ? Augh ! Think of the worst possible implementation and interpretation, and then double the badness.
As a primo example of user interface, see Peter F. Hamilton's Night's Dawn Trilogy...
The Reality Dysfunction : Emergence The Reality Dysfunction : Expansion The Neutronium Alchemist : Consolidation The Neutronium Alchemist : Conflict The Naked God (not avail yet except in Australia)
Both genetically modified and mechanically augmented humans use a thought based system for communication. The mechanical ones also have may sorts of implants. Peter's descriptive style is so smooth in the delivery of how these things work (that is, how they are used, not made:) that you rapidly fall into the environment of total belief.
Highly recommended. Although the genetics are a stretch I can still see it. I can defintely see the mechanical/computer systems going this route.
Slashdot Mirror
This was an old Higher School Certificate problem in Australia as I recall ...
Envision a circular building of radius r. There is a guard dog for this building, chained to it somewhere on the perimeter of the building. The chain is exactly 1/2 the circumference of the building.
So the dog is able to reach the exact opposite point of the building by going either way around it.
Question: What is the area the dog can guard ?
The lower part is easy - it's a semi-circle. The upper parts are trickier - the path of the dog traces a path reminiscent of a cardioid.
Hey -
:
e r_main.html
On the Nasa Home Movies page, there is a very nice photo montage called
"Rover Team Album" 2:49 at 11meg
It has some very cool electronica music to go with it. I've been searching, but can't find any indication as to exactly what the music is.
Anyone have any ideas ?
You can get to it from here
http://www.nasa.gov/vision/universe/solarsystem/m
Select the "One Year on Mars" (View Flash Feature) link at the right, then choose "Home Movies" from the set of image links in the popup window.
Definitely check out eTrackMail. They handle exactly that sort of thing. I know a few people using it, and they like it a lot.
http://www.etrackmail.com/
Is there any way to re-encode the newer licensed .WMV files ? For example, many of the videos coming out of ConsumptionJunction :) are licensed.
.WMV to plain old .MPG or .AVI ?
When you run the media file, MediaPlayer goes out to the net to "obtain a license" for the file. A few seconds go by, then it says it got one, and to click Play to view the video.
Well and good, if a real hassle. But now some of the videos are unplayable because the license server isn't there any more.
How can one re-encode the videos from
The comment about the discovered planets may be true, but look at what they are able to see ... They are detected by seeing the wobble they produce on their host star.
...
Given that you're looking for indications of something that is able to make a *star* wobble in space, of course all they can see are huge Jupiter-sized planets. Something similar to Terra simply doesn't have enough of an effect on the host star to be detectable with today's technology.
I'm certain that Terran-sized planets are out there (there's no reason for them *not* to be). We just can't "see" them yet. It's like trying to see a small cigarette glow in front of a roaring bonfire
Don't forget, Far-Seer was followed by Fossil Hunter, and then Foreigner. Also excellent books.
No chance. We use standard system images, and users (as a general rule) do not have local admin rights (Winders 2K).
Dean.
"I must, and yet I cannot. How do you calculate that? Where do 'must' and 'cannot' meet on the graph?"
:)
They meet on the graph at the intersection of "Robot" and "Monster"
There are three authors I would find to be amazingly good at the development of technology, and I'm sure that everyone else here would have three *other* choices. But these are mine, and I like them :)
1) William Gibson. Neuromancer. Although he really didn't (and apparently still doesn't) know much at all about computers, he has a crystalline method of prose that stands out. His descriptions of the technology are vivid, but in a protagonist-situation sense. He doesn't describe the computers in detail, but as tools being used in a societal environment. Awesome.
2) David Drake. Hammer's Slammers books. Some of the best military science fiction around. David Drake was a commander I believe in the only tank regiment in Vietnam, and writes from some experience. His descriptions of where military hardware can go, and more importantly, how it can be used, anregreat. You get drawn right in to the "of course this is what warfare will/can look like".
3) Best for last, but probably too much for a course. Peter F. Hamilton. The Night's Dawn trilogy. Actually 6 books in the US. This set has it all - Neurotech, biotech, genetic engineering, high-tech. And it pretty much all seems like it really could happen. The first book takes a while to get into, but then you can't put them down. The universe, and the technology that makes it all work, are described in a very cool seamless way, and it all seems to make sense. A very black/white choice here. Some people loved the books, others can't stand them. But then, that makes it interesting, doesn't it ?
Windows Update works well, but only within a severely limited universe, the Micro$oft one. That means the M$ software only by the way ...
...
Do take a look at CNet's CatchUP service. What Windows Update was supposed to be, and what apt and dselect et al can all aspire to be
http://catchup.cnet.com
Gotcha. I started poking through the code some more, but missed that :( Ah well.
Different issue now - the cut marks. I'm assuming you're supposed to cut at the lines pointed to by the arrows, right ? If you cut off the left and bottom margins, the bottom of the page still has the upper arrow of the cut-mark pointing down, and the right arrow pointing left at the left margin. These are within the viewable area.
Shouldn't the cut marks only have arrows in the discardable part of the image ?
Rusty
...
.c files. Perhaps thin faint arrows showing which functions call which funtions within the file. No external functions, or maybe just thinner/fainter arrows pointing in the direction of the called external function.
Very cool work - thanks ! Very Nasty Code - thanks !
Can you give us more of a description of *why* the code is doing, as opposed to *what* ? What are the deciding factors for the layout of the function blocks ? What about the colored lines within ? I know that forks represent code forks, but the curves ?
For example, I took a look at drivers/net/tokenring/olympic.c and it shows one function sprintf_info as a large block with a simple green spiral in it. No if/switch statements, so no forks in the line. Does the length of the line/spiral represent the length of the function ? I thought that was the size of the box
Need Input !
Possible enhancement - show partial call graphs, just within
No, email is definitely not enough. My contracts have all been paper, with signatures on EACH page.
With email it would be way to easy for one party to make changes to the details (scope of work/hours/rate/etc) and in the event of litigation, who says which is the right version.
Anything in bits on disk can be changed, email, email logs, etc. Get paper. Not fax, but original copies.
The main reason I would want it is for recording to VCD. Move the mpeg2 file directly to your computer, resample to vcd format, and burn. Perfect for permanent backups of shows you want to keep.
Now ideally Tivo will come out with a version that has a built-in burner. Click a button and burn a show to VCD right in the box.
Tivo - you listening ? We WANT this !
Me too :)) lol '87
By law you are allowed to keep *for free* anything sent to you unsolicited. Someone sends you a TV in the mail that you didn't request, it's yours.
The CueCat reader *belongs* to everyone who got one as a surprise.
This was to counter the scam of sending junk to people, then demanding outrageous payments.
Damn. Who is he to decide whether I should be able to read online or not. I find it arrogant and presumptious of him to force me to come to the library to read. Sometimes I *like* to go to a library or bookstore for a couple of hours and browse. But sometimes I really really like the convenience of just sitting down *at home* and reading. He/they should be facilitating. Make the information available is many forms.
I've been looking for a motherboard rack system for a while, with no luck. By that I mean one with 40 open shelves that are drilled and punched for motherboard mounting, like a standard case MB tray. The motherboard would screw down to the left, and the other side of the tray should have a 3-space drive cage. The trays should be on drawer-style runners. Rather than multiple power plugs in the back, I want a honking big power supply on the bottom to feed everything. Why have 40 individual power supplies, one per MB ? The Mongo (tm) Power Supply should have 40 ATX motherboard power connectors running up the side of the case, and about 120 drive connectors. This way, you just bolt your MB to a tray, pop a floppy, CD and HD into the cage, hook up power, and you're up ! All of that is easy to build, except for the power supply. It would need to be about a 12kw supply (300W x 40 motherboards). Still better than having 40 little ATX power supplies with all their power cords ... To be truly excellent, it should have a UPS built in. I would imagine this puppy would take up about 8U at the bottom of the rack. Talk about perfect for building a Beowulf :)
All right. Given this, how do the two compare ? The Tivo and Replay that is. Pros and cons for each ? Anywhere else you can get the Tivo information from ? That website for WebTV from Micro$oft ?
Agreed. Genius. And somehow seems to attract not-the-best interpretations of his work. Has anyone read Nightfall ? The original short story and the book ? Tremendous, particularly the short story. The movie ? Augh ! Think of the worst possible implementation and interpretation, and then double the badness.
Absolutely there's interest. Go to it !
As a primo example of user interface, see Peter F. Hamilton's Night's Dawn Trilogy ...
:) that you rapidly fall into the environment of total belief.
The Reality Dysfunction : Emergence
The Reality Dysfunction : Expansion
The Neutronium Alchemist : Consolidation
The Neutronium Alchemist : Conflict
The Naked God (not avail yet except in Australia)
Both genetically modified and mechanically augmented humans use a thought based system for communication. The mechanical ones also have may sorts of implants. Peter's descriptive style is so smooth in the delivery of how these things work (that is, how they are used, not made
Highly recommended. Although the genetics are a stretch I can still see it. I can defintely see the mechanical/computer systems going this route.