And since i'm no boffin i have to make some assumptions.
You want to ignite the rocket at or around a pre-determined height and you want to launch before the balloon bursts. You already know the temperature and the pressure and i assume you must also know the time. If thats true then you only need a timer. If its not true then a maths expert could surely work out a rise time given various wind speeds and balloon trajectory and that would get you a "time" window where you are guaranteed to ignite the rocket before the balloon bursts and at the height you want.
To be fair and talking from years of experience, anybody who queues up to buy any product from an IT company on the strength of some slick marketing must be insane and deserve what they get.
But since this is consumer land and not professional territory, we shouldn't be surprised.
Wireless issues across the board have been around for years now so it should be no surprise that some devices work better than others in a given environment.
There are a multitude of wifi issues out there, most of which the fanbois will have little or no knowledge of.
I agree with you and its interesting to note that over the last 60 years, the temperature has risen by about 0.6 C. Hardly surprising when the worlds population has doubled in the same period.
This is the problem is it not? If we go on multiplying we are bound to produce more and more CO2.
best, cheapest and healthiest way to heat your house is to install a pellet or woodchip oven, turn the heating down to minimum and kit the family out with ski suits that you can buy cheaply at any charity shop on the high street.
10 apostles of the apocalypse didn't get the joke!
Frankly i'm more worried about how it is that people can become ardent believers in any subject without absolute proof the of the theory.
Even the scientists admit that man made global warming is still a hypothesis, albeit a likely one.
And since our breathing population is in an ever increasing trajectory, could someone please explain how we are going to reduce CO2 emissions. I've yet to see any published figures on how much CO2 is produced by living breathing creatures on this planet.
Many of you will have seen this before but for those who have not...enjoy
The following is an actual question given on a University of Washington engineering mid term. The answer was so profound that the Professor shared it with colleagues, which is why we now have the pleasure of enjoying it as well.
Bonus Question: Is Hell exothermic (gives off heat) or Endothermic (absorbs heat)?
Most of the students wrote proofs of their beliefs using Boyle's Law, (gas cools off when it expands and heats up when it is compressed) or some variant. One student, however, wrote the following:
"First, we need to know how the mass of Hell is changing in time. So we need to know the rate that souls are moving into Hell and the rate they are leaving. I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving. As for how many souls are entering Hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to Hell. Since there are more than one of these religions and since people do not belong to more than one religion, we can project that all souls go to Hell. With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially.
Now, we look at the rate of change of the volume in Hell because Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the volume of Hell has to expand as souls are added. This gives two possibilities:
If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all Hell breaks loose.
Of course, if Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over.
So which is it? If we accept the postulate given to me by Teresa Banyan during my Freshman year, "...that it will be a cold day in Hell before I sleep with you." and take into account the fact that I still have not succeeded in having sexual relations with her, then, #2 cannot be true, and thus I am sure that Hell is exothermic and will not freeze."
But the devil is in the detail. Many Unix machines used to have their hardware clocks set by counting the elapsed seconds since, i think, 1st Jan 1970! Then the software clocks were synced by atomic clocks using NTP or the likes. I'm not sure that this still holds but nevertheless
this is important because time must be tracked even when the kernel is not running.
Not sure that i agree that they can easily cope with leap seconds. That has to be only a maybe.
I just got pissed off trying to fix other broken "features" like wifi and RFkill. The last straw was "upgrading" to 11.04 i think when the keyboard and touchpad failed to work after the download.
Opensuse on the other hand, while its not perfect either, at least gave me a working keyboard and touchpad back.
I still had to download a newer kernel to fix the wifi issues but.......it just works.
A lot of German bashing going on here! Quite rightly the Germans do not want to bail out the basket cases in the Euro zone. Their economy is doing nicely thanks to their fiscal and monetary policies and they expect every other member state to manage themselves as well as they do.
German debt is sitting at around the same level as the UK and nearly 20% less than that of the USA and no sign of QE from the Germans. Quite rightly.
Watching Bloomberg and others,anyone would think that this global recession, its about to happen, was caused by poor economic management in Europe.
It was caused by American and European bankers playing poker with slight of hand dealers, Lets not forget that! And America is heading fast into the abyss after the amount of cash it has just printed.
But you are not going to convince the green brigade that you still need nuclear and not just wind and hamsters.
I'm still banging the drum for this http://www.bbc.co.uk/news/science-environment-13040853 but others appear to have quite another agenda: ie the nuclear powers.
I hope the scientists get their way and find the right words to convince the nay sayers.
I've been trying for weeks to get a laptop stable on Ubuntu and the last straw was last week when i did an apt-get update on 10.04 and was able to login then lost the touchpad and the keyboard.
Catch 22, with no external mouse or keyboard available.
So i made some bootable discs including one for 11.04 and had the same problem after reinstalling.
It turns out that someone changed the Synaptics package and released it into every version and didn't bother to test it properly.
Check the forums! Add that to endless wireless problems and......toys out the pram.
Now i am running OpenSuse and life is much better!
Who would have thought that such an animal existed?
And why should he not bring to our attention a theory that wind farms are a health issue? From a crackpot scientist or not. It doesn't matter but it's important to know that someone is watching what the energy companies are doing.
I'm all for renewables and recycling but also realistic enough to know that we cannot do without nuclear and i don't mean the type we have at the moment.
I encourage everyone to watch this. http://www.bbc.co.uk/news/science-environment-13040853
If a Nobel prize winner says it safe, surely it's safe to assume that it is.
As for the waste, stick it on top of an Arianne rocket and fire it straight at the sun.
As always, the question is avoided and to paraphrase your answer, you suggest that running the data centres from hydro is a cost effective and reliable way to do it. I agree with you.
You also suggest that moving many of them to areas with geothermal power would also help. Correct.
But you don't answer the fundamental question. Shifting resources around is not going to solve the worlds energy problems and i should point out, not that i need to, that locating data centres next to volcanoes is a recipe for disaster. Investors know that!
I read that the worlds data centres require almost 200 billion kw/h to run.
How can that be done with windmills and cow shit exactly?
If we invested all of the money thats being invested in "alternatives" right now then i'm sure that we could come up with a foolproof way of generating nuclear power thats 100% safe.
The French must having a laugh at our expense and just sitting back rubbing their hands together, waiting for the day that the rest of Europe runs out of leccy.
I did a back of a fag packet calculation recently that suggests that if everyone where i live changed to e-bikes and leccy cars tomorrow, the country would need to build two nuclear power stations just to charge them up overnight.
Let me first of all say that i am not a business user of Ubuntu and i would really like to be a fan of Ubuntu but below is my experimental experience of Maverick and Natty Narwahl.
I should also say that i have built both releases on the same old Siemens Amilo laptop which runs a Pentium 4 chip clocked at 2.8ghz and not a lot of memory. However, it runs well and boots quickly.
I wanted to build a simple jukebox using the default player Rhythmbox and get the wireless card working so that i could load all my cd's and automatically find the cd titles from CDDB over the wireless lan.
Sounds simple.
My wireless driver is b43legacy from Broadcom and i know that they do not exactly make it easy for users to use their chips under Linux. But in my case it turned out not to be a driver problem but a utility called RFKILL which was not fixed until i think 2.6.38 of the kernel. This kernel, last time i looked is not even the latest kernel that ships with Ubuntu. Why not? No idea!
It took me days and a lot of searching and patch loading and editing to find this out. Now it works great with the new kernel.
Rythmbox, also worked well for a few hours then suddenly stopped finding CD titles from MusicBrainz, a CDDB alternative.
I should also say that i save the cd's as flac files, just in case someone says ahh but!
So what to do,,,download Banshee and try that......great worked well for some time then it too developed a problem where it would not write the titles correctly into the menu frames.
Then another problem surfaced where the cd ripper, i tried several including soundjuicer, would take an age to rip a cd. Up to 40 minutes in some cases. (Trying also a cd that before ripped in about 7 minutes)
So you trawl the forums again looking for explanations and find you are not alone and in Banshees case, discover that many of your problems are allegedly fixed in version 2.1 which was supposed to be released on the 13th July. Where is it?
In summary, Ubuntu has more bugs than a tramps underpants and while it looks good and even feels good i can believe the first commentars suggestion that business should not go near it.
that here in Austria, online banking with the RaiffeisenBank is always done with one time pads.
We sign for them every time we need a new pad and any login to the bank can only be done using them once each login.
Plus we need the standard username, password, account details first of course.
Standard practice and works without problems.
Its probably why, most sales or buying/selling transactions are carried out using only IBAN and account numbers. Paypal not required which is goodness in itself.
except that i have a contract that runs for another year and certainly will NOT be buying another iphone even if it has a Cray supercomputer inside it.
Well fuck me! Who would have thought that booze can do that?
Which planet are they living on? Its a "phenomenon" thats been known about since the start of time and everyone who has indulged a little bit too much is well aware of the consequences and vows never to do it again.....until the next time.
Register
102 posts • joined Sunday 21st March 2010 10:05 GMT
Page:
Thanks for the Friday grin
" Angela Merkel intends to resolve the eurozone crisis in the time-honoured local tradition."
Very funny, top marks from me for the quote of the week
I'm with you
And since i'm no boffin i have to make some assumptions.
You want to ignite the rocket at or around a pre-determined height and you want to launch before the balloon bursts. You already know the temperature and the pressure and i assume you must also know the time. If thats true then you only need a timer. If its not true then a maths expert could surely work out a rise time given various wind speeds and balloon trajectory and that would get you a "time" window where you are guaranteed to ignite the rocket before the balloon bursts and at the height you want.
Couple of quid all in including the timer chip?
watch it on yootoob
eleven
hilarious
kettle calling pot
You have to hand it to the Chinese. They learn quickly from their political peers.
shock, horror, probe
You mean we don't need electric cars?
I think we should have an enquiry
Its not just Aple
To be fair and talking from years of experience, anybody who queues up to buy any product from an IT company on the strength of some slick marketing must be insane and deserve what they get.
But since this is consumer land and not professional territory, we shouldn't be surprised.
Wireless issues across the board have been around for years now so it should be no surprise that some devices work better than others in a given environment.
There are a multitude of wifi issues out there, most of which the fanbois will have little or no knowledge of.
Re: But how many 1980's papers were wrong?
I agree with you and its interesting to note that over the last 60 years, the temperature has risen by about 0.6 C. Hardly surprising when the worlds population has doubled in the same period.
This is the problem is it not? If we go on multiplying we are bound to produce more and more CO2.
Re: Where's the crater?
The sediment layer under Lake Cuitzeo
Did you not read that bit?
pushy galore
I musht be dreaming!
great !!!!
I agree
way past his sell by date.
Lennon,Mcartney brilliant!
Frog song and Mull of Kintyre..trash
let your house breathe
best, cheapest and healthiest way to heat your house is to install a pellet or woodchip oven, turn the heating down to minimum and kit the family out with ski suits that you can buy cheaply at any charity shop on the high street.
Job done and very reliable.
Mcnealy
Was also famously quoted as saying, "remember your first shot of heroin is free" referring to Microsoft.
How right he was because the modern analogy is Facebook and Google.
agreed
but you missed Copyright, Getty Images springs to mind.
hmmmm
10 apostles of the apocalypse didn't get the joke!
Frankly i'm more worried about how it is that people can become ardent believers in any subject without absolute proof the of the theory.
Even the scientists admit that man made global warming is still a hypothesis, albeit a likely one.
And since our breathing population is in an ever increasing trajectory, could someone please explain how we are going to reduce CO2 emissions. I've yet to see any published figures on how much CO2 is produced by living breathing creatures on this planet.
you aint heard nothing
until you've heard an old Quad 22 setup with a pair of ESL55 speakers and a matching Quad FM tuner.
Frightening clarity and so good that they still demand high prices 50 years later.
the climate is definitely changing
Many parts of Austria have reported almost 4 metres of snow since December.
They call it white gold.
Temperature forecasts for this week are to get to -20c below.
A few weeks ago it was also below -24, only the fifth time in 45 years.
So i think many people are happy with "global warming" :>)
ps
summer sucks!!
with windows geeks bringing up the rear
ha ha ha
you owe me a new keyboard
This post has been deleted by its author
Is Hell exothermic or endothermic?
Many of you will have seen this before but for those who have not...enjoy
The following is an actual question given on a University of Washington engineering mid term. The answer was so profound that the Professor shared it with colleagues, which is why we now have the pleasure of enjoying it as well.
Bonus Question: Is Hell exothermic (gives off heat) or Endothermic (absorbs heat)?
Most of the students wrote proofs of their beliefs using Boyle's Law, (gas cools off when it expands and heats up when it is compressed) or some variant. One student, however, wrote the following:
"First, we need to know how the mass of Hell is changing in time. So we need to know the rate that souls are moving into Hell and the rate they are leaving. I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving. As for how many souls are entering Hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, you will go to Hell. Since there are more than one of these religions and since people do not belong to more than one religion, we can project that all souls go to Hell. With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially.
Now, we look at the rate of change of the volume in Hell because Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the volume of Hell has to expand as souls are added. This gives two possibilities:
If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all Hell breaks loose.
Of course, if Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over.
So which is it? If we accept the postulate given to me by Teresa Banyan during my Freshman year, "...that it will be a cold day in Hell before I sleep with you." and take into account the fact that I still have not succeeded in having sexual relations with her, then, #2 cannot be true, and thus I am sure that Hell is exothermic and will not freeze."
business is bad
So they have obviously decided to start marketing themselves, 21st century style.
Too late i think.
computers can easily cope with leap seconds
Oh really?
But the devil is in the detail. Many Unix machines used to have their hardware clocks set by counting the elapsed seconds since, i think, 1st Jan 1970! Then the software clocks were synced by atomic clocks using NTP or the likes. I'm not sure that this still holds but nevertheless
this is important because time must be tracked even when the kernel is not running.
Not sure that i agree that they can easily cope with leap seconds. That has to be only a maybe.
@"The reaction also spews #
Not acid rain.
Snow....8 metres of it in some parts of Austria, so far this winter.
At 0700 this morning it was -20 C. Fact not fiction.
Not another one
I smell yet another expensive disaster.
who cares
When nkora.net and sopcast do the job anyway in ever better quality!
A few minutes relay delay does not bother me.
interfering with a police officer?
Is he an interstellar priest as well then?
There's more than one possibility
Or
unless, of course, Carrier IQ IS the FBI and their cover has just been blown!
UI is not the reason i moved
I just got pissed off trying to fix other broken "features" like wifi and RFkill. The last straw was "upgrading" to 11.04 i think when the keyboard and touchpad failed to work after the download.
Opensuse on the other hand, while its not perfect either, at least gave me a working keyboard and touchpad back.
I still had to download a newer kernel to fix the wifi issues but.......it just works.
Heres a better one
"It is better for men to build bridges than to build walls".
The Fender Telecaster was a much better invention than the AK47
Alex Harvey. R.I.P
Don't you mean
"Britain fuelled by uranium from our good friends in Canada or Australia "
Britain fuelled by Thorium from our good friends in India or Australia?
Proven much safer with a half life counted in hundreds not thousands of years.
They will all get it one day Lewis.
hold on
A lot of German bashing going on here! Quite rightly the Germans do not want to bail out the basket cases in the Euro zone. Their economy is doing nicely thanks to their fiscal and monetary policies and they expect every other member state to manage themselves as well as they do.
German debt is sitting at around the same level as the UK and nearly 20% less than that of the USA and no sign of QE from the Germans. Quite rightly.
Watching Bloomberg and others,anyone would think that this global recession, its about to happen, was caused by poor economic management in Europe.
It was caused by American and European bankers playing poker with slight of hand dealers, Lets not forget that! And America is heading fast into the abyss after the amount of cash it has just printed.
The Nay Sayers
Are a bit quiet!
Whats wrong? Too much logic in it?
but what about
Puppy Love by Donny Osmond and some of that other shite that the Carpenters churned out.
Real sing along wrist slashing stuff that was!
This post has been deleted by its author
agreed
But you are not going to convince the green brigade that you still need nuclear and not just wind and hamsters.
I'm still banging the drum for this http://www.bbc.co.uk/news/science-environment-13040853 but others appear to have quite another agenda: ie the nuclear powers.
I hope the scientists get their way and find the right words to convince the nay sayers.
By far
The biggest scam on the planet.
Always has been and always will be
They are making it up
I've been trying for weeks to get a laptop stable on Ubuntu and the last straw was last week when i did an apt-get update on 10.04 and was able to login then lost the touchpad and the keyboard.
Catch 22, with no external mouse or keyboard available.
So i made some bootable discs including one for 11.04 and had the same problem after reinstalling.
It turns out that someone changed the Synaptics package and released it into every version and didn't bother to test it properly.
Check the forums! Add that to endless wireless problems and......toys out the pram.
Now i am running OpenSuse and life is much better!
There is no evidence
That it reached Mach anything
And Maybe
Its because they are Crap!
I saw a "new" band recently and the lead female singer walked onto stage with an Apple Mac in her hand.
Who wants to pay to watch that?
a journalist with an agenda?
well, well, well.
Who would have thought that such an animal existed?
And why should he not bring to our attention a theory that wind farms are a health issue? From a crackpot scientist or not. It doesn't matter but it's important to know that someone is watching what the energy companies are doing.
I'm all for renewables and recycling but also realistic enough to know that we cannot do without nuclear and i don't mean the type we have at the moment.
I encourage everyone to watch this. http://www.bbc.co.uk/news/science-environment-13040853
If a Nobel prize winner says it safe, surely it's safe to assume that it is.
As for the waste, stick it on top of an Arianne rocket and fire it straight at the sun.
@PyLETS
Look, do yourself a favour and watch this. http://www.bbc.co.uk/news/science-environment-13040853
I am not a nuclear propagandist, nor a scientist, nor a politician. I try to follow the facts and the science and try not to swallow alarmist hype.
If a Nobel prize winning scientist tells me that nuclear can be 100% safe, with minimal waste issues, thats good enough for me.
I respectfully suggest that it should be good enough for everyone.
But we all know that overcoming fear is the biggest single factor that prevents many things from happening.
@Matthew 3
http://www.bbc.co.uk/news/science-environment-13040853
you are welcome!
@PyLETS
As always, the question is avoided and to paraphrase your answer, you suggest that running the data centres from hydro is a cost effective and reliable way to do it. I agree with you.
You also suggest that moving many of them to areas with geothermal power would also help. Correct.
But you don't answer the fundamental question. Shifting resources around is not going to solve the worlds energy problems and i should point out, not that i need to, that locating data centres next to volcanoes is a recipe for disaster. Investors know that!
elsewhere in El Reg today
I read that the worlds data centres require almost 200 billion kw/h to run.
How can that be done with windmills and cow shit exactly?
If we invested all of the money thats being invested in "alternatives" right now then i'm sure that we could come up with a foolproof way of generating nuclear power thats 100% safe.
The French must having a laugh at our expense and just sitting back rubbing their hands together, waiting for the day that the rest of Europe runs out of leccy.
I did a back of a fag packet calculation recently that suggests that if everyone where i live changed to e-bikes and leccy cars tomorrow, the country would need to build two nuclear power stations just to charge them up overnight.
agreed
But it does not fill one with confidence does it, when they don't appear to be able to get the basics right.
The forums are full of bugs and problems that business users would not want to see.
problems you ask?
Let me first of all say that i am not a business user of Ubuntu and i would really like to be a fan of Ubuntu but below is my experimental experience of Maverick and Natty Narwahl.
I should also say that i have built both releases on the same old Siemens Amilo laptop which runs a Pentium 4 chip clocked at 2.8ghz and not a lot of memory. However, it runs well and boots quickly.
I wanted to build a simple jukebox using the default player Rhythmbox and get the wireless card working so that i could load all my cd's and automatically find the cd titles from CDDB over the wireless lan.
Sounds simple.
My wireless driver is b43legacy from Broadcom and i know that they do not exactly make it easy for users to use their chips under Linux. But in my case it turned out not to be a driver problem but a utility called RFKILL which was not fixed until i think 2.6.38 of the kernel. This kernel, last time i looked is not even the latest kernel that ships with Ubuntu. Why not? No idea!
It took me days and a lot of searching and patch loading and editing to find this out. Now it works great with the new kernel.
Rythmbox, also worked well for a few hours then suddenly stopped finding CD titles from MusicBrainz, a CDDB alternative.
I should also say that i save the cd's as flac files, just in case someone says ahh but!
So what to do,,,download Banshee and try that......great worked well for some time then it too developed a problem where it would not write the titles correctly into the menu frames.
Then another problem surfaced where the cd ripper, i tried several including soundjuicer, would take an age to rip a cd. Up to 40 minutes in some cases. (Trying also a cd that before ripped in about 7 minutes)
So you trawl the forums again looking for explanations and find you are not alone and in Banshees case, discover that many of your problems are allegedly fixed in version 2.1 which was supposed to be released on the 13th July. Where is it?
In summary, Ubuntu has more bugs than a tramps underpants and while it looks good and even feels good i can believe the first commentars suggestion that business should not go near it.
you should know
that here in Austria, online banking with the RaiffeisenBank is always done with one time pads.
We sign for them every time we need a new pad and any login to the bank can only be done using them once each login.
Plus we need the standard username, password, account details first of course.
Standard practice and works without problems.
Its probably why, most sales or buying/selling transactions are carried out using only IBAN and account numbers. Paypal not required which is goodness in itself.
ditto
except that i have a contract that runs for another year and certainly will NOT be buying another iphone even if it has a Cray supercomputer inside it.
Once bitten and all that!!
who' s fooling who
Last Saturday evening you stayed out all night long
Stayed with your best friend, doing nothing wrong
But you aint fooling me, cos any fool can see
You couldn't have stayed with your best friend
Cos she spent the night with me
Tell me who who who.....................:>)
Bobby Blue Bland
"rose tinted beer goggles"
Well fuck me! Who would have thought that booze can do that?
Which planet are they living on? Its a "phenomenon" thats been known about since the start of time and everyone who has indulged a little bit too much is well aware of the consequences and vows never to do it again.....until the next time.
Are they getting paid for this research?
just another reason
Why we shouldn't be too worried about global warming.
One of these babies is going to hit us sooner or later as history tells us.
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