From Armadillo News: This was a big success for us, completely eliminating the need for our propane / air preheat system, and giving us the ability to do in-flight restarts without any trouble.
Not sure about the details, but I would figure that, well, the conditions in which inflight restarts take place would be a LOT different from what they are testing on the ground:
1) (BIG) pressure difference
2) (HUGE) temperature difference
3) possible airflow difference (say if the rocket was in descent / ascent / falling sideways)
I'd say he should do a lot more tests before being certain than inflight restarts is a guaranteed thing. I mean, that'd probably be one of the more critical things on deciding the success / failure of a mission, and probably in cases contribute to the decision b/w life and death - so, more tests and more redundance cannot hurt.
well, "cannot hurt" might not apply to the budget...
and if a popular server is identified by many customers? like, say, hotmail?
and there ARE cases where somebody might want to send email to a person with no prior contact - the "long-lost HS friend" is overused, but take other examples - say I am active on a mailing list and somebody want to ask me something, or if somebody is replying to my advertisement on ebay. there are TONS of problems with a whitelist-only approach.
is a few span servers to get on the list, and a few legit servers to get hacked and taken off the list (and tries to get on again) before there will be hell and ATT would have to abandon the plan, wasting all these time and resources used to instate this plan in the first place.
I know what you are trying to say, but from another point of view, you are looking at a phone as a strickly "talk to one another" device, as it was invented many decades ago - but it does not have to be like that.
case in point: In Japan, the most frequent thing people in general do on their cellphones is to key email messages to eachother (especially students, since it's cheaper to email), that followed closely by snapping shots at nearly EVERYTHING.
for me, I use my phone (DoCoMo) the most for 1) schedule / alarm 2) browse internet for train information 3) pictures 4) emailing 5) talking
Now, sure, it's be nice and fine if you got a phone that has bullet proof voice capability but has monochrome text-only screens, but i sure as heck am not going to buy it; it does not fit with my lifestyle.
just another way to look at it, i guess.
I don't understand why people trust analysts
on
Merrill Lynch Rips Sun
·
· Score: 5, Insightful
I mean... let' run through some arguments here:
1) if they are so good at analyzing the market and which company will do good / do bad, why arn't they sitting around with billions, but instead slaves away at financial institutions?
2) how many analysts spoke out at the beginning of the dot com bubble insightfully? (i.e. "this won't last?") IIRC everyone, yes including the analysts, were basically like "hey everybody what a wonderful opportunity! buy buy buy!"
3) AFAIK analyst predictions on stock / company performance has never been any more accurate than random guesses or predictions from a layman (within error tolerance) - I believe the reference was fool.com;
so, can anybody GIVE me a reason why market analysts should be trusted for their opinions? Besides that they went through a couple years of economy schoool (which, according to my acquaintance studying economy, is mostly like astrology)?
so... that would be like a small house in beverly hills? small japanese apartment? smaller of a "house" in a double-wide trailer park? HOW BIG IS A SMALL HOUSE?
I really miss the days when they just use units like meters, or heck, even feet!
hmm... that came out more flamebaitish than I had wanted, but seriously...
what happened if all the chinese ppl jumped all at once
ok. i have no life: but here is a quick calculation:
1.2billion people
avg 70kg
jump 20cm
E = gmh = 9.81 m/s^2 * 0.2 m * 70 kg * 1.2E9
= 164.81GJ
This is compared to a megaton yield, which is
2,977,789,639,020,840Joules (i.e. 2977.8GJ).
In another words, the said scenario would cause an energy roughly equivalent of about 55 kilotons spreadout through China; as a comparison, LittleBoy was like 13.4 kilotons.
So, I guess if they brought everybody to the same city and jumped a few times, it might be kinda imposing...
Saw a TV program on it a while back; they showed research on researchers using EarthSim to see shockwave propogation if a large earthquake was to occur in Kanto, or more specifically within a short distance to Tokyo (which is probably the biggest worry to the entire Japanese seismelogical and to a lesser extent meterological bodies).
The conclusion was basically that Japan would be f***'ed if such was to happen, but that's rant for another day.
So, earthsimulator simulates a lot of things. I am surprised that they don't model nuclear blasts on them, because it certainly CAN. Or at least we just don't know about it.
One thing is for sure, though - I will attest that NEC definitely made a bundle over this =)
btw, for ppl who are in japan, you can schedule tours to the place. I havn't tried yet, but in case anyone is interested... (now that I think about it, wasn't there a story about this a while back?) but here is a link just for fun: visitor information.
and if you are brave enough for the same page in japanese, click here. (The japanese page has a japanese map, which shows station names in kanji. I always found kanji station names to be more help, but that might be just me...
actually NHK had a lil program this morning (morning in JP) showing one of the recycling plants and how they recycle - basically smash everything with little hammers and separate (to a degree) the metal from the plastic from the PCB from the rubber sheets (keyboard) etc.
they also smash the ICs for some reason, probably because when it melts in the pot the molten silicon would trickle through (pure and absolute speculation)...
This creates jobs (though mundane), and helps with waste - japan is not known for having a lot of area for landfills; so as long as things get recycled (instead of, say, shipped to china), I am cool with it.
Though it would change the recycle shops (read: used stuff shops) business model on old computers... maybe it becomes cheaper to sell your old PC to a recycle shop? Would the recycle shops be totally fscked because they have a collection of junk PC sitting around?
Heck, my company has an array of junk PCs (actually, Pentium II class, which I am amazed that they are tossing out) sitting around. Maybe they will be sitting around a lot longer now that it costs money to dispose... hmm...
1) as this post has pointed out, just because you get to look at the source does not mean it's secure. (the post is from Jeremy Allison on the security of Samba servers)
2) Besides, being closed source and microsoft, are they going to be able to [practically] compile windows and compare it to the actual version? Why do I doubt it?
3) even if you get to look at the source, then you'd have to look at the source of every security patch that comes your way too, because otherwise you can just put a hole in one of your patches and pretend it fixes such and such. I mean, it's not like this hasn't been done before (Germain police, Java Anonymous Proxy).
But then again Microsoft is probably just doing this for show anyway - bribe a few key officials so that there are too few people with too tight a schedule to examine all-too-much of bloaty code, and there you have it - "oh the code was examined and was ok" even though it's just a formality.
I say stay away from Microsoft on principle when you need to be sure that you are secure.
100kg is not terribly bad compared to some of the higher end astronomical telescopes.
as long as the dish will remain pointing at a certain location in an idle state (i.e. you don't need the motor to supply torque to hold the entire apparatus steady (i.e. the center-of-gravity is reasonablly close to the turning axis(es)), then as long as the motors have sufficient step down gearboxes you should be alright.
of course, there is a tradeoff between speed and power of motor, but then again it's also a tradeoff between speed and precision too - a motor too large will be hard to control and may damage the antenna by supplying too much dynamic torque, etc.
so, SHOULD be ok. That said, I am not hauling myself cross-continent in a van with a 150kg dish, so I am just speculating...
Hmm... I think with some proper tools and software you should be able to auto-align the dish - I mean, Meade telescopes do it if you provide it with a proper reference point.
With a GPS, a level-sensor, some kind of direction sensor (since it's such a big antenna, differential GPS on two points might work out pretty good), and then some algorithm to "wiggle" the antenna toward the strong signal point once the aforementioned sensor array moved it to the general region, I think he should be able to park his van, unload the dish, and hit a "auto-search" and have internet connection in no time.
now, of course, to properly align a dish in the middle of nowhere under 10 minutes is no small feat, and maybe he is automating it all anyway... just random ramblings.
Of particular interest is that MIT network security requires users to reformat their hard drive and re-install their operating system before they get back on the network.
That's a draconian policy if I've ever heard of one!
To reformat you need to backup - and if you have more data to backup than some puny CDRs? and you can't get on the network to backup onto your friend's gigantic file server that he has kindly carved out a nice chunk for you for a week? and I have a laptop so it's not exactly a good idea to be pulling drives out?
all practical concerns I'd face if I was part of the MIT network - but glad that I am not on the MIT network, and that blaster didn't come my way. heh...
poor suckers who'd have similar problems with me, though - maybe that kind of explains why there are still so many people un-connected... they are all looking for used tape drives...
From everything I have read about farnsworth fusors, it really says that it is a nutron generator up to a certain threshhold, up to which point the fusion process is self-sustaining - of course, that is if the static electric containment field holds during that time.
there is an account whereby farnsworth bypassed this threshhold and the neutron generation rate went off the scale and continued for 30 minutes after he turned off the machine (stopped feeding deutrium? i forgot).
so, maybe it's not sustained cold fusion right now, but doesn't mean it can't be with more tuning.
I mean, if nothing happens, he has at least 4 years in college for this!
the problem with the 3D thing is that it's very, very bad for text-viewing, at least in 3D mode - but then if you forfeit that, what's the whole point? and then you have such a limited view-space from which everything is 3D, so if you are playing, say, 3D games, you can't move your head at all for more than a couple inches each way.
btw, to get the 3D thing you need te sacrifice half the pixel count (half of the pixels to one eye and half to the other eye) - so keep that in mind as well.
over all, a neat lil trick, but i wouldn't sacrifice weight and size (especially thickness) of a laptop for something like this...
it is a detection system. and an imperfect one at that: heck even the designer for the software itself says this...
besides, if it's an outlook mail worm, then every address it goes to is targeted correctly, and Billy Goat will go on munching it's grass and not have a clue while the network slows to a crawl.
I mean, of course it can look for surge traffic, but how do you distinguish that vs. a simple slashdotting?
100lb in 365 days by doing the "Jared" thing? come on...
100lb = 360,000 cal; you'd have to lose ~1000 cal per DAY to get that kind of weight loss. I am sorry but walking one mile to subway and back is not going to cut it.
as a references: RUNNING 5km (~3miles) burns a measely 380cal for a 160lb person.
you are either completely making this up, or exaggerating figures no less than Enron or worldcom.
it's not necessarily so, but I know for sure that in case of iTunes, the songs I download are nearly restriction free after they are mine (i.e. burn-to-CD).
I can be proved wrong, but when the system requires MediaPlayer 9 and IE, some kind of mental "DRM alert" sounds off. Hey, then again I can't exactly get to the site to take a look, so...
Slashdot Mirror
Not sure about the details, but I would figure that, well, the conditions in which inflight restarts take place would be a LOT different from what they are testing on the ground:
1) (BIG) pressure difference
2) (HUGE) temperature difference
3) possible airflow difference (say if the rocket was in descent / ascent / falling sideways)
I'd say he should do a lot more tests before being certain than inflight restarts is a guaranteed thing. I mean, that'd probably be one of the more critical things on deciding the success / failure of a mission, and probably in cases contribute to the decision b/w life and death - so, more tests and more redundance cannot hurt.
well, "cannot hurt" might not apply to the budget...
and if a popular server is identified by many customers? like, say, hotmail?
and there ARE cases where somebody might want to send email to a person with no prior contact - the "long-lost HS friend" is overused, but take other examples - say I am active on a mailing list and somebody want to ask me something, or if somebody is replying to my advertisement on ebay. there are TONS of problems with a whitelist-only approach.
is a few span servers to get on the list, and a few legit servers to get hacked and taken off the list (and tries to get on again) before there will be hell and ATT would have to abandon the plan, wasting all these time and resources used to instate this plan in the first place.
Great shame, really...
erm, required...
*or, understand how strange it is...
I know what you are trying to say, but from another point of view, you are looking at a phone as a strickly "talk to one another" device, as it was invented many decades ago - but it does not have to be like that.
case in point: In Japan, the most frequent thing people in general do on their cellphones is to key email messages to eachother (especially students, since it's cheaper to email), that followed closely by snapping shots at nearly EVERYTHING.
for me, I use my phone (DoCoMo) the most for
1) schedule / alarm
2) browse internet for train information
3) pictures
4) emailing
5) talking
Now, sure, it's be nice and fine if you got a phone that has bullet proof voice capability but has monochrome text-only screens, but i sure as heck am not going to buy it; it does not fit with my lifestyle.
just another way to look at it, i guess.
I mean... let' run through some arguments here:
1) if they are so good at analyzing the market and which company will do good / do bad, why arn't they sitting around with billions, but instead slaves away at financial institutions?
2) how many analysts spoke out at the beginning of the dot com bubble insightfully? (i.e. "this won't last?") IIRC everyone, yes including the analysts, were basically like "hey everybody what a wonderful opportunity! buy buy buy!"
3) AFAIK analyst predictions on stock / company performance has never been any more accurate than random guesses or predictions from a layman (within error tolerance) - I believe the reference was fool.com;
so, can anybody GIVE me a reason why market analysts should be trusted for their opinions? Besides that they went through a couple years of economy schoool (which, according to my acquaintance studying economy, is mostly like astrology)?
so... that would be like a small house in beverly hills? small japanese apartment? smaller of a "house" in a double-wide trailer park? HOW BIG IS A SMALL HOUSE?
I really miss the days when they just use units like meters, or heck, even feet!
hmm... that came out more flamebaitish than I had wanted, but seriously...
ok. i have no life: but here is a quick calculation:
1.2billion people
avg 70kg
jump 20cm
E = gmh = 9.81 m/s^2 * 0.2 m * 70 kg * 1.2E9
= 164.81GJ
This is compared to a megaton yield, which is
2,977,789,639,020,840Joules (i.e. 2977.8GJ).
In another words, the said scenario would cause an energy roughly equivalent of about 55 kilotons spreadout through China; as a comparison, LittleBoy was like 13.4 kilotons.
So, I guess if they brought everybody to the same city and jumped a few times, it might be kinda imposing...
no no no, they are trying to answer the question of what happened if all the chinese ppl jumped all at once.
The conclusion was basically that Japan would be f***'ed if such was to happen, but that's rant for another day.
So, earthsimulator simulates a lot of things. I am surprised that they don't model nuclear blasts on them, because it certainly CAN. Or at least we just don't know about it.
One thing is for sure, though - I will attest that NEC definitely made a bundle over this =)
btw, for ppl who are in japan, you can schedule tours to the place. I havn't tried yet, but in case anyone is interested... (now that I think about it, wasn't there a story about this a while back?) but here is a link just for fun: visitor information.
and if you are brave enough for the same page in japanese, click here. (The japanese page has a japanese map, which shows station names in kanji. I always found kanji station names to be more help, but that might be just me...
so... did you like, i dunno, take them to lunch after the whole event? I actually feel that they kinda deserved it (the lunch).
So that's what y'all are calling it now? doesn't that require women (preferabbly one married to you) first?
I mean, not so familiar with these things, /. regular and all...
[ducks]
just have to see how it works out.
actually NHK had a lil program this morning (morning in JP) showing one of the recycling plants and how they recycle - basically smash everything with little hammers and separate (to a degree) the metal from the plastic from the PCB from the rubber sheets (keyboard) etc.
they also smash the ICs for some reason, probably because when it melts in the pot the molten silicon would trickle through (pure and absolute speculation)...
This creates jobs (though mundane), and helps with waste - japan is not known for having a lot of area for landfills; so as long as things get recycled (instead of, say, shipped to china), I am cool with it.
Though it would change the recycle shops (read: used stuff shops) business model on old computers... maybe it becomes cheaper to sell your old PC to a recycle shop? Would the recycle shops be totally fscked because they have a collection of junk PC sitting around?
Heck, my company has an array of junk PCs (actually, Pentium II class, which I am amazed that they are tossing out) sitting around. Maybe they will be sitting around a lot longer now that it costs money to dispose... hmm...
2) Besides, being closed source and microsoft, are they going to be able to [practically] compile windows and compare it to the actual version? Why do I doubt it?
3) even if you get to look at the source, then you'd have to look at the source of every security patch that comes your way too, because otherwise you can just put a hole in one of your patches and pretend it fixes such and such. I mean, it's not like this hasn't been done before (Germain police, Java Anonymous Proxy).
But then again Microsoft is probably just doing this for show anyway - bribe a few key officials so that there are too few people with too tight a schedule to examine all-too-much of bloaty code, and there you have it - "oh the code was examined and was ok" even though it's just a formality.
I say stay away from Microsoft on principle when you need to be sure that you are secure.
100kg is not terribly bad compared to some of the higher end astronomical telescopes.
as long as the dish will remain pointing at a certain location in an idle state (i.e. you don't need the motor to supply torque to hold the entire apparatus steady (i.e. the center-of-gravity is reasonablly close to the turning axis(es)), then as long as the motors have sufficient step down gearboxes you should be alright.
of course, there is a tradeoff between speed and power of motor, but then again it's also a tradeoff between speed and precision too - a motor too large will be hard to control and may damage the antenna by supplying too much dynamic torque, etc.
so, SHOULD be ok. That said, I am not hauling myself cross-continent in a van with a 150kg dish, so I am just speculating...
Hmm... I think with some proper tools and software you should be able to auto-align the dish - I mean, Meade telescopes do it if you provide it with a proper reference point.
With a GPS, a level-sensor, some kind of direction sensor (since it's such a big antenna, differential GPS on two points might work out pretty good), and then some algorithm to "wiggle" the antenna toward the strong signal point once the aforementioned sensor array moved it to the general region, I think he should be able to park his van, unload the dish, and hit a "auto-search" and have internet connection in no time.
now, of course, to properly align a dish in the middle of nowhere under 10 minutes is no small feat, and maybe he is automating it all anyway... just random ramblings.
That's a draconian policy if I've ever heard of one!
To reformat you need to backup - and if you have more data to backup than some puny CDRs? and you can't get on the network to backup onto your friend's gigantic file server that he has kindly carved out a nice chunk for you for a week? and I have a laptop so it's not exactly a good idea to be pulling drives out?
all practical concerns I'd face if I was part of the MIT network - but glad that I am not on the MIT network, and that blaster didn't come my way. heh...
poor suckers who'd have similar problems with me, though - maybe that kind of explains why there are still so many people un-connected... they are all looking for used tape drives...
From everything I have read about farnsworth fusors, it really says that it is a nutron generator up to a certain threshhold, up to which point the fusion process is self-sustaining - of course, that is if the static electric containment field holds during that time.
there is an account whereby farnsworth bypassed this threshhold and the neutron generation rate went off the scale and continued for 30 minutes after he turned off the machine (stopped feeding deutrium? i forgot).
so, maybe it's not sustained cold fusion right now, but doesn't mean it can't be with more tuning.
I mean, if nothing happens, he has at least 4 years in college for this!
wrote about it a little here, actually...
the problem with the 3D thing is that it's very, very bad for text-viewing, at least in 3D mode - but then if you forfeit that, what's the whole point? and then you have such a limited view-space from which everything is 3D, so if you are playing, say, 3D games, you can't move your head at all for more than a couple inches each way.
btw, to get the 3D thing you need te sacrifice half the pixel count (half of the pixels to one eye and half to the other eye) - so keep that in mind as well.
over all, a neat lil trick, but i wouldn't sacrifice weight and size (especially thickness) of a laptop for something like this...
squashes worms?
it is a detection system. and an imperfect one at that: heck even the designer for the software itself says this...
besides, if it's an outlook mail worm, then every address it goes to is targeted correctly, and Billy Goat will go on munching it's grass and not have a clue while the network slows to a crawl.
I mean, of course it can look for surge traffic, but how do you distinguish that vs. a simple slashdotting?
bots that runs on distributed clusters, designed to take out humans in a simulated environment... hmmmm
if we arm them (the programs) with paintball guns we can do simulated battles from the terminator universe.
or until they get a hold of some real firepower and this becomes a real version of the terminator universe...
Either way I for one look forward to a beowulf cluster of these steel and wire overlords, yeah?
You know, you pretty much answered your own question - Debeers is the diamond industry, that's why you are not an expert in regards to it.
100lb in 365 days by doing the "Jared" thing? come on...
100lb = 360,000 cal; you'd have to lose ~1000 cal per DAY to get that kind of weight loss. I am sorry but walking one mile to subway and back is not going to cut it.
as a references: RUNNING 5km (~3miles) burns a measely 380cal for a 160lb person.
you are either completely making this up, or exaggerating figures no less than Enron or worldcom.
the jar has went into deficite a loooong time ago.
oh wait. you don't mean only take pennies out when you have sex with your wife, do you?
shucks! (dumps back 500 dollars in pennies)
it's not necessarily so, but I know for sure that in case of iTunes, the songs I download are nearly restriction free after they are mine (i.e. burn-to-CD).
I can be proved wrong, but when the system requires MediaPlayer 9 and IE, some kind of mental "DRM alert" sounds off. Hey, then again I can't exactly get to the site to take a look, so...