Your comments are interesting. I too am a physicist, and have made good use of H&H. I think the style of H&H is much more 'read the chapter, understand the basic ideas, go out and design stuff' and less 'here is a design model, plug in your parameters'. We don't suggest it just to sound knowledgable, but because it fits well with a physics style of thinking. Apparently it jars with an engineers thought patterns.
But I'd agree, it sounds like the original questioner knows about H&H (whether he likes it or not) and is looking for something with a bit more depth - I hard question to answer without a bit more information. Where are we going? High/low frequency? Low noise? Low power?...
Are you sure your gig of zeros are treated exactly like any other data? If I screw up my simulations they usuually end up processing lots of zeros. It's obvious when this happens because they finish very quickly. Maybe you should generate a gig of random numbers instead?
Oh please. I am sick of students who claim they know how to use a certain instrument, but who are unable to adapt when the buttons move. In five years time you won't even be able to buy the same model. It's a 'scope, it isn't that complicated. It would be damn annoying for the lab leaders, but it's almost worth buying several different brands to broaden your students.
Mr. Physicist who works with neuroscientists here. Yes, I can confirm, neuroscientists are like that. I'd agree with the colour comments though (somebody go wiki gamut).
Er, for the same reason that any other employer provides email? It says you represent the university, not just yourself. If somebody emails me asking to borrow an instrument from a yahoo address should I reply?
What ever happened to the idea of universities running their own systems? My previous university decided to centralise/outsource most of the IT services. As most of us expected the service became inflexible and unreliable, and most importantly it was really difficult to reach the people who could fix it. It sucked. Linux support? Sun support? AIX support? Nope. Everything was designed around PC's - other systems were seen as exotic and unnecessary. Oh, and there was the week when the email system lost about half of all messages, that was fun.
Yes, it costs money to run an email system. But you pay for getting the service you want. Now here's the clever part - if you share what you learn, the dev/maintenance costs become more manageable. Isn't that the idea behind open source?
In the UK at least, if you are employed by the university they own your work, including any patents coming from it. Thirty+ years ago universities weren't much interested in patents but the world has changed since then.
Universities see spin-out companies as good for profit and good for image. Hence they are willing (usually keen) to license out patents to spin-offs founded by the original inventors.
After finishing school, I was convinced I hated sport. What I actually don't enjoy are team sports, but that is all I really encountered at school. But there are a whole selection of sports that are a lot of fun by yourself, far more suited to an introvert. I used to orienteer - dashing around the woods by yourself with a map is fun, physical and works your mind at the same time. Trekking is often done best by yourself (or at least I prefer it that way) - you can spend days without meeting another sole if you can find the time. Cycling is also perfect. I've never got into road racing, but touring and mountain biking are fun and it easy to do a few mile after work in the summer. Get outside - there are less people around than you might expect and it's good for the sole. I find it gives my eyes a break and helps me focus on things further away than a monitor too.
Some of us just want serious life out of a laptop battery. Hard disks are monsters for power consumption. Once we get cheap SSDs, then we can start moaning about the screen (I was going to say fixing, but seriously, I don't do the dev work, I just moan).
Indeed the art of simulation is often in choosing what not to include. If everything is included in the simulation, I might as well go and make real measurements. Missing out real-world imperfections can often make a problem easier to understand.
Everything possible was researched, measured, logged. Nobody could think what to do with all that data, so they made an extra universe to store it in. We're living in it.
Air traffic controllers are conservative
on
Terminal Chaos
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· Score: 4, Interesting
...air traffic controllers union resisting change, a technologically outdated air traffic control system... Air traffic controllers are a very conservative bunch. They don't like change. They like to test things *heavily* before putting them into regular use. I like it that way.
I briefly worked in ATC research. Whatever neat computer system the scientists came up with, the controllers would look at and say "what do we do when it fails?". And they're serious. If the radars go down they can manage a sector by memory and radio comms. It's very impressive. There are lots of shiney new technology-based answers that just aren't reliable enough. The trouble is, too many people are flying.
Last time I checked, the major alternative was free. The expensive part is finding someone who knows how to specify the hardware and set it up. That must be even harder for Windows, given the number of previous successful installs.
I'd love to know how they intend to license this - per node?
I'm curious - why do you have a website at all? I find an increasing number of dev project sites and sourceforge projects with no code whatsoever. It's all noise.
I'm working on a project I intend to open too. Like you, mine really isn't ready for public consumption. However, I am quietly tidying up my code, filling in some holes, and generally trying to make it useable/developable by someone who isn't me. Once that is done, I'll release it.
Maybe this is harsh, but isn't building the website before the project a way of enjoying the achievement without achieving it?
That's exactly what he was hoping to do (mainly because he didn't think they needed calibrating). The probe response to a linear temperature rise was approximately exponential. The part of the curve we are interest in was pretty much flat (this is a feature of the instrument internal cal, not the probes). He recorded a lot of noise. Calibrating first is always a good idea. Sometime you can post-correct...sometime the information is just not there.
I guess so...eventually. Now for the guys who've been locked up for the past 6 years without charge, that might seem like a long time. Now, about those ships?.
I've often thought about running a science class in schools with deliberately miscalibrated rulers. Or maybe an undergrad lab, where a selection of the instruments are 'off'. See how long it takes the kids to figure it out.
(My colleague just lost a weeks work because he didn't bother to test his fancy fibre-optic temperature probes by sticking them in a glass of water with a thermometer. He'll remember that lesson!)
That's why it is so important to argue the case for and against every law, before it becomes law. It's easy to write an introduction saying 'this is to stop terrorists', but much harder to frame the law so that it only applies to terrorism cases.
I'd say move! I left Blighty for Switzerland a few months ago, and have a whole new perspective now that I'm the foreigner. Generally great, but jeez, sometimes the Swiss make you feel like anoutsider!
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Your comments are interesting. I too am a physicist, and have made good use of H&H. I think the style of H&H is much more 'read the chapter, understand the basic ideas, go out and design stuff' and less 'here is a design model, plug in your parameters'. We don't suggest it just to sound knowledgable, but because it fits well with a physics style of thinking. Apparently it jars with an engineers thought patterns.
...
But I'd agree, it sounds like the original questioner knows about H&H (whether he likes it or not) and is looking for something with a bit more depth - I hard question to answer without a bit more information. Where are we going? High/low frequency? Low noise? Low power?
Pre-generate the numbers?
Are you sure your gig of zeros are treated exactly like any other data? If I screw up my simulations they usuually end up processing lots of zeros. It's obvious when this happens because they finish very quickly. Maybe you should generate a gig of random numbers instead?
Oh please. I am sick of students who claim they know how to use a certain instrument, but who are unable to adapt when the buttons move. In five years time you won't even be able to buy the same model. It's a 'scope, it isn't that complicated. It would be damn annoying for the lab leaders, but it's almost worth buying several different brands to broaden your students.
...I was distracted by my own reflection...
Mr. Physicist who works with neuroscientists here. Yes, I can confirm, neuroscientists are like that. I'd agree with the colour comments though (somebody go wiki gamut).
Er, for the same reason that any other employer provides email? It says you represent the university, not just yourself. If somebody emails me asking to borrow an instrument from a yahoo address should I reply?
What ever happened to the idea of universities running their own systems? My previous university decided to centralise/outsource most of the IT services. As most of us expected the service became inflexible and unreliable, and most importantly it was really difficult to reach the people who could fix it. It sucked. Linux support? Sun support? AIX support? Nope. Everything was designed around PC's - other systems were seen as exotic and unnecessary. Oh, and there was the week when the email system lost about half of all messages, that was fun. Yes, it costs money to run an email system. But you pay for getting the service you want. Now here's the clever part - if you share what you learn, the dev/maintenance costs become more manageable. Isn't that the idea behind open source?
...in the same way that MS paint is as capable as photoshop...
Yes, I use both. LaTeX if I have a choice, Word if I need to exchange docs with less enlightened colleagues.
In the UK at least, if you are employed by the university they own your work, including any patents coming from it. Thirty+ years ago universities weren't much interested in patents but the world has changed since then. Universities see spin-out companies as good for profit and good for image. Hence they are willing (usually keen) to license out patents to spin-offs founded by the original inventors.
Gee, thanks Dell. 350USD, 300GBP. That's some odd exchange rate - it cost an extra 150GBP to add a pound sign to the keyboard?
After finishing school, I was convinced I hated sport. What I actually don't enjoy are team sports, but that is all I really encountered at school. But there are a whole selection of sports that are a lot of fun by yourself, far more suited to an introvert. I used to orienteer - dashing around the woods by yourself with a map is fun, physical and works your mind at the same time. Trekking is often done best by yourself (or at least I prefer it that way) - you can spend days without meeting another sole if you can find the time. Cycling is also perfect. I've never got into road racing, but touring and mountain biking are fun and it easy to do a few mile after work in the summer. Get outside - there are less people around than you might expect and it's good for the sole. I find it gives my eyes a break and helps me focus on things further away than a monitor too.
Some of us just want serious life out of a laptop battery. Hard disks are monsters for power consumption. Once we get cheap SSDs, then we can start moaning about the screen (I was going to say fixing, but seriously, I don't do the dev work, I just moan).
They'll just have to invent a series of abstract symbols with no real meaning...nobody ever thought of that before
Wouldn't that be a self-moderation?
Indeed the art of simulation is often in choosing what not to include. If everything is included in the simulation, I might as well go and make real measurements. Missing out real-world imperfections can often make a problem easier to understand.
Everything possible was researched, measured, logged. Nobody could think what to do with all that data, so they made an extra universe to store it in. We're living in it.
...air traffic controllers union resisting change, a technologically outdated air traffic control system... Air traffic controllers are a very conservative bunch. They don't like change. They like to test things *heavily* before putting them into regular use. I like it that way.I briefly worked in ATC research. Whatever neat computer system the scientists came up with, the controllers would look at and say "what do we do when it fails?". And they're serious. If the radars go down they can manage a sector by memory and radio comms. It's very impressive. There are lots of shiney new technology-based answers that just aren't reliable enough. The trouble is, too many people are flying.
Compared to?
Last time I checked, the major alternative was free. The expensive part is finding someone who knows how to specify the hardware and set it up. That must be even harder for Windows, given the number of previous successful installs.
I'd love to know how they intend to license this - per node?
I'm curious - why do you have a website at all? I find an increasing number of dev project sites and sourceforge projects with no code whatsoever. It's all noise.
I'm working on a project I intend to open too. Like you, mine really isn't ready for public consumption. However, I am quietly tidying up my code, filling in some holes, and generally trying to make it useable/developable by someone who isn't me. Once that is done, I'll release it.
Maybe this is harsh, but isn't building the website before the project a way of enjoying the achievement without achieving it?
That's exactly what he was hoping to do (mainly because he didn't think they needed calibrating). The probe response to a linear temperature rise was approximately exponential. The part of the curve we are interest in was pretty much flat (this is a feature of the instrument internal cal, not the probes). He recorded a lot of noise. Calibrating first is always a good idea. Sometime you can post-correct...sometime the information is just not there.
I guess so...eventually. Now for the guys who've been locked up for the past 6 years without charge, that might seem like a long time. Now, about those ships?.
I've often thought about running a science class in schools with deliberately miscalibrated rulers. Or maybe an undergrad lab, where a selection of the instruments are 'off'. See how long it takes the kids to figure it out. (My colleague just lost a weeks work because he didn't bother to test his fancy fibre-optic temperature probes by sticking them in a glass of water with a thermometer. He'll remember that lesson!)
That's why it is so important to argue the case for and against every law, before it becomes law. It's easy to write an introduction saying 'this is to stop terrorists', but much harder to frame the law so that it only applies to terrorism cases.
I'd say move! I left Blighty for Switzerland a few months ago, and have a whole new perspective now that I'm the foreigner. Generally great, but jeez, sometimes the Swiss make you feel like an outsider!
And you cool them to 4K how often?