If the tip of the blade is stationary and the rest of the blade is moving backwards, then the axle/chopper is moving backwards. Clearly the chopper and blades are screaming forwards except for the tip of the blade on one side which is stationary.
We are talking about Relative motion here. Imagine me running west for an hour. Ideally I have run about 10 kms in that hour - but from the perspective of someone stationary in orbit (I mean someone stationary with respect to earth's gravity centre) - you have moved around 800 kms (depending on where the observer is, calculate tangents and multiply by cosine of your lattitude to get correct answer).
Anyway, the fact here is that - the relative velocity of the tip of the wing with respect to the air around it is Zero. Zero air speed over the wing == zero lift and down comes the copter.
But the speed of the wing parts nearer to axle is lesser - but since this is the retreating part of the wing - it does go forward with reference to the air speed (ie it's air speed is positive). Since we always assumed that the air speed of the retreating wing is always negative (ie it moves backwards) , this essentially puts extra stresses on the wing planes.
Ah !!.. I learned all about this when I was 14.. damn, I hated school for being so tough..
I think the point is that the wing goes around . So the forward velocity varies depending on what angle the rotor is at that point. It also should be remembered that the wing tips move both ways (forward and backward). The whole point of that being - it will hop from side to side when it touches mu-1 (no, I am not a physics professor). These guys have been near mu-1 for about ~20 seconds.
Also I think the mu-1 ratio has always dealt with the fact that most modern helicopters deal with rigid wings and the lift generated is from around 3/4th distance from the central point. I don't know if that's going to hold for the future (just like moore's law when quantum computers come... sheesh ).
Insult me if I'm wrong. And TFA is slashdotted already . Can't more people use greasemonkey cacher ?.
BSD has been where everything seems to find a crowd of whackos to implement stuff. Or that's the only reason I can find about it having source compilation first (the first time I compiled gcc it took me 18 hours.. in 1999).
The real difference between gentoo now and bsd then is the people who use it.
I am too young to remember the age of freedom before the commercial world took over software. But I can make out how it would have felt from whatever Free Software is doing to the youngsters today. It must've felt like the current astrophysics or higher mathematics of today. I wonder what happens when those things have real applications and multinationals pushing reasearch ( already grant money seems to be corrupting them ).
> [People] just don't see it as theft. They just see it as inevitable, particularly as new technologies become available...
Userfriendly has hit the nail on the head with
this explanation of the economics of software piracy. The costs of piracy had hit companies way back in late nineties, these days the piracy factor is calculated into the initial pricing. Where I was working before, they had estimated ~19% piracy rate for a mobile phone app. It is slowly starting to become a market force for the software industry - and the companies hate that. (price it too high, we'll pirate !)
The american corporate's blood sucking is slowly starting to show on the economy. what price for - America Inc (specializing in mergers with oil rich countries with dictators) ?.
Now I think we can compile a WiFi hotspot map and lookup the nearest one rather than rely on those stupid faded chalk marks. If only they'd carry the SSID as well..
Btw, we've already been there and done positioning using local RF stuff.
I had this app that used a MIDP form to draw the way you moved. It used to go crazy when I was in the lift - but on the horizontal it used to work nicely. I couldn't release it because it uses a few undocumented Ericsson OPA APIs. It used to obtain timing advances of all nearby towers by forcing a network search. Triangulate and measure displacement. The more towers you have the better your placement will be - but this only measures displacement. It used to chug battery like anything - and my screen used to flicker everytime it hit network search (I think I must be sterile from using all those unshielded mobiles).
Chalkboards and whiteboards are just tools - this is sort of a computer touch screen which is big enough. The concept remains the same - write something down in big enough letters for everyone to read. Now the extra advantages of this is that you could just bring your chalkboard stuff saved and written from last year if you're a teacher. Which is a good thing if you're teaching Geography with lots of maps - but suppose you're learning algebra , this could be a bad thing . Procedure gets replaced with results when you use this thing.
Anyway, there was also discussions about electronic whiteboards in our office. But somebody said that writing it down on his notebook is all that keeps him awake. So when teaching a bunch of motivated, interested students , with a good teacher this might come in handy. But in general, this much technology is wasted on school children.
The most important duty of a teacher is to make sure the children learn, not to teach. This looks like it might help the teachers concentrate more on the latter.
Tor uses something called Onion Routing. But interestingly the original system was heavily patented and Tor had to work around all of those with something called "Telescopic Circuits". The problem (as far as my feeble brain understands) is that this is suitable for connection oriented data, but not for routing each packet a different way - seriously I'd love to run Tor as tun0 so that my IP packets head a different way and do point-to-point, but that seems to be a distant dream. Right now it seems to be just protocol proxying.
And the problem with onion routing is that it is neither high-bandwidth or low-latency - just anonymous. Sharing files over Tor is a blatant misuse - but tracker comm over it is perfectly valid (Azureus already has a plugin - though I like dht better).
Interestingly, I2P calls them Garlic routers (the pun is not lost on some of us).
> Why can't they be like Debian? Those CDs, you can pass on to your children and they're still current.
This is either a joke about debian's release cycle or your reproductory cycle... I'm trying to figure out which.
Also I think you could say the same about Gentoo - but that's a totally different joke I suppose. ("at least your children will get a current install")
>
The average cable modem user in America has more bandwidth than their entire country.
The country itself need not have enough bandwidth. Distributed DoS could take down a box using american zombie PCs. And let me tell you, there is no dearth of those. An attack from the inside of the network is perfectly possible - ever read Andromeda Strain ?. A compromised machine inside your network would need you to have a LOT of scissors:)
>
It's hard to afford computers and network access when 99.9% of your GDP goes to support your military and feed your people.
Cyber warfare is military funded... It is military without all the blood and guts routine - with all the Art of War fire tactics.
> In the US most of the large companies have clear strategies to increase open source in their product lines...
I think Microsoft and SCO have very clear strategies about open source. So does Linksys and all others on the BusyBox Hall of Shame. A clear strategy to parasatise and cannibalize opensource is never good.
>
In Asia and Latin America, we see that there are many national and regional projects to develop and to work on open source.
Have you been to either place ?. FSF India had organized a small conference about free software with people from latin america visiting. The whole idea is to avoid being robbed blind by the New World corporates when it comes to software - not only of money (which could be better spent training their own engineers to write OSS) , but also of their freedom (like lockins that MS Word has brought upon attachements).
If Europe is lagging behind , it's very strange that an industrialized continent replete with welfare states fails to motivate it's youngsters to learn with OSS and maybe earn a bit as well. It's a comfort addict situation.
Trains have been using heavy magnetic motors for years to start off from zero RPM. So let's get to the real point.
No heavy magnets
avg torque x RPM range
So , no gears to mess with
The downside is that these motors suck power like anything. I'm actually seeing two seater electric cars on the roads here - Reva classe. It is a decent city car and they are working on a methanol fuel cell design. It really screams rich geek (which explains why there's no back seat).
The real issue around here is not the start problems - but driving them in rain or sleet , battery life and lack of repair shops. Speed has very little to do with the lack of their popularity.
www.playboy.xxx is a restricted domain. Please wait while the school security visit your seat.
Also you could just block off dns on that host completely. I was a kid once, so all that will do is a black market trade of/etc/hosts files with all the "good" addresses resolved to IPs.
Lastly, not all erotica is XXX.. Anyway, whatever makes it easier to filter/detect people browsing porn (for the children). But beware ISP's cracking down on porn browsers in countries where porn is illegal (think middle east).
Btw, look at what prohibition did to drinking in US. I just hope some kid in some corner of the world learns C and assembly just to hack through the school proxy to browse pr0n. Talk about incentive !!.
The law has been twisted to mean that "anyone who mentions Nazis looses the debate" - but it was intended to smack down trolls who would compare other people to Nazis.. It's not that the Nazis were evil - they were just bad for the rest of the world (well, that could be the definition of Evil.. but yeah). This is exactly what makes me apprehensive about the world politics right now.
Well, read about Krikkit, to get an idea of what Xenophobic patriotism is.
No, they never said "Do No Eval" in their mission statement...
I think the mystery of google's secret sauce of search engine algorithms has finally crumbled. Now I wouldn't be surprised pigeonrank was true or not.
And perhaps they need to employ somebody other than young teenagers with left hand typing skills - see the image search results for RSS.. (mm.. seductively feathered pigeons comment ? ).
Given a choice, I'd rather not do homework at all. But as it turns out that's the least unpleasant choice in front of me - sort of the lesser of the evils. In the long run, it's the easy way to a nice life (and in the long long run, we're all dead anyway).
Homework isn't pretty - but it teaches you how to sit down and do stuff. The real problem is that most homework is the hard stuff - makes some children think and most of them give up. I used to postpone it and do an all nighter , my sister used to finish her homework the day she got it... it sort of carries over into how you handle problems in real life too (unfortunately).
My parents just gave up on trying to make me do homework when I was around 11 or 10 years old. I think it helped me think my way around problems - by the time I was 17 I was ranked in the top 50 students in the state. Unorthodox methods (I remember being kicked out of class for asking the proof of Pythagoras Theorem) and a couple of good teachers pushed me through the indifference barrier that these kids are stuck at (translated as "why should I always be studying ?").
I spent most of my life learning stuff - but I studied around 4 or 5 years. Too bad the world doesn't realize they need problem solvers of a practical nature - not guys who know calculus by heart.
Let me quote Calvin here - They only teach stuff any fool can look up in a book .
NAT is the reason why ipv6 has not really been needed. The idea of having an IP address for everyone on the planet and for his dog too was really not needed.
Once NAT+Firewalls became popular enough, the requirement for large IP chunks for offices and stuff disappeared.
No backward compatibility, ugly naming scheme (tell me , who like::1 ?) and over all lack of a need helped kill IPv6 from becoming too popular.
Dune deals with the fact that what you see into the future locks you into that - or more correctly, the self fulfilling prophecy paradox. Star Wars doesn't (maybe revenge of the sith does hint on that) . It just handles prescience as just a sense and tries to concentrate on moralizing about the Dark and Light sides of the Force. (which it did very well too). Also Dune deals with the inversion of scarcity - Melange which is rare, but common on Arakkis , Water which forms oceans in other worlds, but rare on Arakkis.
The Force - Prescience
"Luke, I am your Father" - Baron Harkonnen is Paul's grandfather
Vader Helmet - Baron Harkonnen with suspendor globes
lightsabers - crysknife
Death star - guild frigates
?? - Sarduakar ?.
Dune carries a lot of fatalism - especially ironic because Paul is prescient. Also the fact that he lets go of Chani rather than turn into a Tlelaxu puppet - which Anakin was not able to do. Also the twins - a girl and boy , the mother dies at birth.
If you really think about it , the Matrix had some of the themes too - Neo is not The ONE , but turns out to be , Paul is not the Kwisatz Haderach , but he becomes.
Dune has the best eyecandy - I remeber dreaming about Shields and lasguns - the sound, color and shimmering feeling. For some of us, CG effects are never enough . Also yeah, the first 3 Dune books were good - the rest of them sucked (come on !.. honored matres' ?... sex that blinds)... Same for Star War movies . Both Lucas and Herbert seems to have gone bad.
Slashdot Mirror
We are talking about Relative motion here. Imagine me running west for an hour. Ideally I have run about 10 kms in that hour - but from the perspective of someone stationary in orbit (I mean someone stationary with respect to earth's gravity centre) - you have moved around 800 kms (depending on where the observer is, calculate tangents and multiply by cosine of your lattitude to get correct answer).
Anyway, the fact here is that - the relative velocity of the tip of the wing with respect to the air around it is Zero. Zero air speed over the wing == zero lift and down comes the copter.But the speed of the wing parts nearer to axle is lesser - but since this is the retreating part of the wing - it does go forward with reference to the air speed (ie it's air speed is positive). Since we always assumed that the air speed of the retreating wing is always negative (ie it moves backwards) , this essentially puts extra stresses on the wing planes.
Ah !!Also I think the mu-1 ratio has always dealt with the fact that most modern helicopters deal with rigid wings and the lift generated is from around 3/4th distance from the central point. I don't know if that's going to hold for the future (just like moore's law when quantum computers come... sheesh ).
Insult me if I'm wrong. And TFA is slashdotted already . Can't more people use greasemonkey cacher ?.Wasn't Nostradamus the guy who said 640k should be enough for anyone ?
Since this is in June... the internal release must have been in mid May . Anyway, I just picked it because it's my birtday ;)
BSD has been where everything seems to find a crowd of whackos to implement stuff. Or that's the only reason I can find about it having source compilation first (the first time I compiled gcc it took me 18 hours.. in 1999).
The real difference between gentoo now and bsd then is the people who use it.
> [People] just don't see it as theft. They just see it as inevitable, particularly as new technologies become available...
Userfriendly has hit the nail on the head with this explanation of the economics of software piracy. The costs of piracy had hit companies way back in late nineties, these days the piracy factor is calculated into the initial pricing. Where I was working before, they had estimated ~19% piracy rate for a mobile phone app. It is slowly starting to become a market force for the software industry - and the companies hate that. (price it too high, we'll pirate !)
The american corporate's blood sucking is slowly starting to show on the economy. what price for - America Inc (specializing in mergers with oil rich countries with dictators) ?.Now I think we can compile a WiFi hotspot map and lookup the nearest one rather than rely on those stupid faded chalk marks. If only they'd carry the SSID as well ..
:)
Btw, we've already been there and done positioning using local RF stuff.
I had this app that used a MIDP form to draw the way you moved. It used to go crazy when I was in the lift - but on the horizontal it used to work nicely. I couldn't release it because it uses a few undocumented Ericsson OPA APIs. It used to obtain timing advances of all nearby towers by forcing a network search. Triangulate and measure displacement. The more towers you have the better your placement will be - but this only measures displacement. It used to chug battery like anything - and my screen used to flicker everytime it hit network search (I think I must be sterile from using all those unshielded mobiles).
Sadly, I've lost the code and that job
Google vs Yahoo ! - otherwise called as "Engines of Discrimination"
Then obvious result would be that anyone sending encyrpted mail would be "flagged". Makes it much easier than all the complicated analysis, right ?.
Anyway, there was also discussions about electronic whiteboards in our office. But somebody said that writing it down on his notebook is all that keeps him awake. So when teaching a bunch of motivated, interested students , with a good teacher this might come in handy. But in general, this much technology is wasted on school children.
The most important duty of a teacher is to make sure the children learn, not to teach. This looks like it might help the teachers concentrate more on the latter.And the problem with onion routing is that it is neither high-bandwidth or low-latency - just anonymous. Sharing files over Tor is a blatant misuse - but tracker comm over it is perfectly valid (Azureus already has a plugin - though I like dht better).
Interestingly, I2P calls them Garlic routers (the pun is not lost on some of us).Spamalot ... lancelot .. camelot ..
.... auuughhh.
Well, I am Talkalot
And my favourite color is yellow, no blue
This is either a joke about debian's release cycle or your reproductory cycle ... I'm trying to figure out which.
Also I think you could say the same about Gentoo - but that's a totally different joke I suppose. ("at least your children will get a current install")The country itself need not have enough bandwidth. Distributed DoS could take down a box using american zombie PCs. And let me tell you, there is no dearth of those. An attack from the inside of the network is perfectly possible - ever read Andromeda Strain ?. A compromised machine inside your network would need you to have a LOT of scissors :)
> It's hard to afford computers and network access when 99.9% of your GDP goes to support your military and feed your people.Cyber warfare is military funded ... It is military without all the blood and guts routine - with all the Art of War fire tactics.
I think Microsoft and SCO have very clear strategies about open source. So does Linksys and all others on the BusyBox Hall of Shame. A clear strategy to parasatise and cannibalize opensource is never good.
> In Asia and Latin America, we see that there are many national and regional projects to develop and to work on open source.
Have you been to either place ?. FSF India had organized a small conference about free software with people from latin america visiting. The whole idea is to avoid being robbed blind by the New World corporates when it comes to software - not only of money (which could be better spent training their own engineers to write OSS) , but also of their freedom (like lockins that MS Word has brought upon attachements).If Europe is lagging behind , it's very strange that an industrialized continent replete with welfare states fails to motivate it's youngsters to learn with OSS and maybe earn a bit as well. It's a comfort addict situation.
- No heavy magnets
- avg torque x RPM range
- So , no gears to mess with
The downside is that these motors suck power like anything. I'm actually seeing two seater electric cars on the roads here - Reva classe. It is a decent city car and they are working on a methanol fuel cell design. It really screams rich geek (which explains why there's no back seat).The real issue around here is not the start problems - but driving them in rain or sleet , battery life and lack of repair shops. Speed has very little to do with the lack of their popularity.
Lastly, not all erotica is XXX .. Anyway, whatever makes it easier to filter/detect people browsing porn (for the children). But beware ISP's cracking down on porn browsers in countries where porn is illegal (think middle east).
Btw, look at what prohibition did to drinking in US. I just hope some kid in some corner of the world learns C and assembly just to hack through the school proxy to browse pr0n. Talk about incentive !!.And I am an speling nazi (*narf*)
I think the mystery of google's secret sauce of search engine algorithms has finally crumbled. Now I wouldn't be surprised pigeonrank was true or not.
And perhaps they need to employ somebody other than young teenagers with left hand typing skills - see the image search results for RSS.. (mm.. seductively feathered pigeons comment ? ).Homework isn't pretty - but it teaches you how to sit down and do stuff. The real problem is that most homework is the hard stuff - makes some children think and most of them give up. I used to postpone it and do an all nighter , my sister used to finish her homework the day she got it... it sort of carries over into how you handle problems in real life too (unfortunately).
My parents just gave up on trying to make me do homework when I was around 11 or 10 years old. I think it helped me think my way around problems - by the time I was 17 I was ranked in the top 50 students in the state. Unorthodox methods (I remember being kicked out of class for asking the proof of Pythagoras Theorem) and a couple of good teachers pushed me through the indifference barrier that these kids are stuck at (translated as "why should I always be studying ?").
I spent most of my life learning stuff - but I studied around 4 or 5 years. Too bad the world doesn't realize they need problem solvers of a practical nature - not guys who know calculus by heart.Let me quote Calvin here - They only teach stuff any fool can look up in a book .
Learn to use and enjoy Zero compress in IPv6 :) ::1 would be the same as 0:0:0:0:0:0:0:1
/32 IPv6 block and the ISP replies that they don't retail out single IPs.
Did you hear about the guy who went to get a
NAT is the reason why ipv6 has not really been needed. The idea of having an IP address for everyone on the planet and for his dog too was really not needed.
::1 ?) and over all lack of a need helped kill IPv6 from becoming too popular.
Once NAT+Firewalls became popular enough, the requirement for large IP chunks for offices and stuff disappeared.
No backward compatibility, ugly naming scheme (tell me , who like
Dune deals with the fact that what you see into the future locks you into that - or more correctly, the self fulfilling prophecy paradox. Star Wars doesn't (maybe revenge of the sith does hint on that) . It just handles prescience as just a sense and tries to concentrate on moralizing about the Dark and Light sides of the Force. (which it did very well too). Also Dune deals with the inversion of scarcity - Melange which is rare, but common on Arakkis , Water which forms oceans in other worlds, but rare on Arakkis.
Dune carries a lot of fatalism - especially ironic because Paul is prescient. Also the fact that he lets go of Chani rather than turn into a Tlelaxu puppet - which Anakin was not able to do. Also the twins - a girl and boy , the mother dies at birth.
If you really think about it , the Matrix had some of the themes too - Neo is not The ONE , but turns out to be , Paul is not the Kwisatz Haderach , but he becomes.
Dune has the best eyecandy - I remeber dreaming about Shields and lasguns - the sound, color and shimmering feeling. For some of us, CG effects are never enough . Also yeah, the first 3 Dune books were good - the rest of them sucked (come on !.. honored matres' ?.- stability
- scalability
- security
- single box performance
I'd really want to wait until someone says OpenLDAP 2.1 is secure and stable before I push it onto a box.