Not really a problem. The beam quality of this kind of laser is never good, and with that much power passing through the air the beam doesn't behave like your pen-pointer laser.
As the intensity increases the refractive index of the air will change, causing strange effects. It will also be extremely sensitive to turbulence.
The terawatt laser* I saw recently worked round this by spreading the beam over a large area and time before focussing and compressing it down.
Adaptive optics are a possible work around, but conventional adaptive optics can't handle the kind of intensities we're talking about here.
The highest power adaptive optics system I've heard of uses nonlinear effects in it's laser medium (usually a rare earth metal doped crystal), but the COIL laser (from it's description) will have a gas mixture. Any effects there are going to be, for all intents and purposes, random.
I doubt the range of these things is going to be greater than a km or so.
but I decided I couldn't live without the functions the Symbian Epoc OS provides. Like the agenda, contacts, opera etc.
As I can get ssh (via java) and perl installed *anyway* running Linux on my PDA with it's tiny keyboard gives me no real benefit. Of course, I'll back up and do it some day, probably when I upgrade my PDA.
Besides, the 5MX isn't the smallest linux PDA, the Revo is smaller and also capable of running psion linux.
Back in the mid 1990s a UK computer company did this. It's native CPU was a DEC/ARM StrongARM chip.
The chips went on daughter boards, similar to the slocket that was popular with people eeking the last ounce of performance from their 440BX boards.
I'm quite rusty about all this now, but I know it could take a 486 as a second CPU, and run decent games (the poor thing only had terrible games, it was targetted at the educational market).
The Company was Acorn of the BBC fame, the machine was the RiscPC.
A real RISC processor before the PPC was dreamt up:)
Most of the memory problems with KDE and Gnome are the over-pretty window managers. Disable them and use something simpler
The ActiveX I don't think anyone can help you with. Bad design decisions.
Exchange allows access via POP3 and IMAP. These are supported by pretty much any mail client. I used this where I work on my Solaris Workstation. Exchange also has LDAP access, so if you use Netscape 4 or 6 you can use the address book. This provides some aspects of the PIM. Unices still lack decent shared calendar support, StarOffice 5.2 had quite a nice one, but this is gone in SO6
OK, I ignored nuclear photon absorption, it's a pretty rare phenomenon, compared to neutron absorption.
I just have a tendency to ignore nuclear physics because I have messed with it so long (worked with cyclotrons in my school holidays). I'm far more interested in optics.
One interesting aspect of affects of photons on nuclei is the possibility of simulated gamma ray emission... think of the weapons you could make with that stuff!
Deuterium/Tritium is the easiest to get fusing, but some people have suggested using helium-3. The reasons for this is that although you get less energy out, you also get far less neutron radiation. Mostly gamma rays.
Gamma rays matter less than neutrons because they don't cause what they hit to become reactive.
'ha ha sucks to be living in the US' but I remembered that these days the EU is doing more or less the same kind of thing.
I really must get round to moving to the moon.
Alternatively: the free, wireless lan based networks that seem to be growing up could form a BBS-like 'underground' for people to spread non-official information. Who'd have thought all that uucp knowledge would come in useful!
After thinking about it on my walk home I've decided against it. With only ~16bogomips I doubt I could do anything particularly interesting with it. The IPSEC idea someone posted would probably take far too long to even exchange keys for any other device to happy talk to it.
I saw someone intending to limit access to it by MAC. I hope they realise that faking a MAC address is extremely trivial.
The problem isn't directly due to the/. crew, but down to the moderators, people like me.
We're lazy. I generally only skim the top of each story, and therefor only see items that have already been positively moderated.
The obvious solution is to change the sort order when someone is a moderator. Although the moderation guidelines suggest browsing at -1, I doubt people do it.
Being a moderator should have a random comment order, threaded, all posts shown. IMO, of course:P
Re:Ten Reasons Why TeX/LaTeX is Better than Word
on
Writing Documentation
·
· Score: 2
Heh, that was copied part way through me wondering if \beq had been defined already and changing it to \begeq
It still failed with \beq used throughout, and with \begeq.
Re:Ten Reasons Why TeX/LaTeX is Better than Word
on
Writing Documentation
·
· Score: 2
11. dvipdfm is your new god
12. proper ligatures!
13. doesn't loose bits of your document without huge amounts of encouragements
But, there are places where I don't like it. I think it needs a pre-processor or something. My problem:
It's fine, generally, but it can get irritating if you're using the same 1918 addresses internally.
My isp uses 172.16.x 192.168.x and 10.x scattered randomly.
Means my traceroutes take longer than is necessary. Of course, I only traceroute when something's wrong, but it *is* an additional irritation when I'm trying to fix stuff.
Slashdot Mirror
Not really a problem. The beam quality of this kind of laser is never good, and with that much power passing through the air the beam doesn't behave like your pen-pointer laser.
As the intensity increases the refractive index of the air will change, causing strange effects. It will also be extremely sensitive to turbulence.
The terawatt laser* I saw recently worked round this by spreading the beam over a large area and time before focussing and compressing it down.
Adaptive optics are a possible work around, but conventional adaptive optics can't handle the kind of intensities we're talking about here.
The highest power adaptive optics system I've heard of uses nonlinear effects in it's laser medium (usually a rare earth metal doped crystal), but the COIL laser (from it's description) will have a gas mixture. Any effects there are going to be, for all intents and purposes, random.
I doubt the range of these things is going to be greater than a km or so.
* ~1J in ~500fs
The feature set and approach to document formatting suits many types of technical documents far better than typical "word processors"
In the unix world this niche has been filled by TeX for longer than I can remember. It's not that hard to use, I taught myself in about 3 days.
For windows, http://www.miktex.org/
For Linux, your distro will probably have tetex/latex.
StarOffice 5.2 had palm pilot syncing.
but I decided I couldn't live without the functions the Symbian Epoc OS provides. Like the agenda, contacts, opera etc.
As I can get ssh (via java) and perl installed *anyway* running Linux on my PDA with it's tiny keyboard gives me no real benefit. Of course, I'll back up and do it some day, probably when I upgrade my PDA.
Besides, the 5MX isn't the smallest linux PDA, the Revo is smaller and also capable of running psion linux.
I could never remember the average distance from the sun to the earth, so I always gave it as either 1AU or eight light minutes..
I was never much good at astrophysics
Try the wayback machine
Back in the mid 1990s a UK computer company did this. It's native CPU was a DEC/ARM StrongARM chip.
:)
The chips went on daughter boards, similar to the slocket that was popular with people eeking the last ounce of performance from their 440BX boards.
I'm quite rusty about all this now, but I know it could take a 486 as a second CPU, and run decent games (the poor thing only had terrible games, it was targetted at the educational market).
The Company was Acorn of the BBC fame, the machine was the RiscPC.
A real RISC processor before the PPC was dreamt up
One thing I forgot which may help your transition: exchange's web access. Looks just like the real thing, and works almost everywhere.
Make sure you enable https though!
It may actually force them to do proper QA, although I admit that BioWare is one of the better game developers out there....
Most of the memory problems with KDE and Gnome are the over-pretty window managers. Disable them and use something simpler
The ActiveX I don't think anyone can help you with. Bad design decisions.
Exchange allows access via POP3 and IMAP. These are supported by pretty much any mail client. I used this where I work on my Solaris Workstation. Exchange also has LDAP access, so if you use Netscape 4 or 6 you can use the address book. This provides some aspects of the PIM. Unices still lack decent shared calendar support, StarOffice 5.2 had quite a nice one, but this is gone in SO6
OK, I ignored nuclear photon absorption, it's a pretty rare phenomenon, compared to neutron absorption.
I just have a tendency to ignore nuclear physics because I have messed with it so long (worked with cyclotrons in my school holidays). I'm far more interested in optics.
One interesting aspect of affects of photons on nuclei is the possibility of simulated gamma ray emission... think of the weapons you could make with that stuff!
more likely a MS saleperson will meet with with upper management, spread scary rumours and offer large discounts to switch.
These discounts will slowly reduce with every upgrade cycle as the company becomes more addicted to MS products.
Deuterium/Tritium is the easiest to get fusing, but some people have suggested using helium-3. The reasons for this is that although you get less energy out, you also get far less neutron radiation. Mostly gamma rays.
Gamma rays matter less than neutrons because they don't cause what they hit to become reactive.
Does anyone actually *know* if this is worked around in the *bsds?
Or do they use the 4k method by default anyway?
'ha ha sucks to be living in the US' but I remembered that these days the EU is doing more or less the same kind of thing.
I really must get round to moving to the moon.
Alternatively: the free, wireless lan based networks that seem to be growing up could form a BBS-like 'underground' for people to spread non-official information. Who'd have thought all that uucp knowledge would come in useful!
After thinking about it on my walk home I've decided against it. With only ~16bogomips I doubt I could do anything particularly interesting with it. The IPSEC idea someone posted would probably take far too long to even exchange keys for any other device to happy talk to it.
I saw someone intending to limit access to it by MAC. I hope they realise that faking a MAC address is extremely trivial.
I may try this, as long as I can rollback to the original firmware ;)
:/
(I have the SMC ezconnect 2652 AP)
The site is getting slower and slower so I may have to wait until next week before I find out
I also wonder how much WEP it supports
The problem isn't directly due to the /. crew, but down to the moderators, people like me.
:P
We're lazy. I generally only skim the top of each story, and therefor only see items that have already been positively moderated.
The obvious solution is to change the sort order when someone is a moderator. Although the moderation guidelines suggest browsing at -1, I doubt people do it.
Being a moderator should have a random comment order, threaded, all posts shown. IMO, of course
Heh, that was copied part way through me wondering if \beq had been defined already and changing it to \begeq
It still failed with \beq used throughout, and with \begeq.
11. dvipdfm is your new god
12. proper ligatures!
13. doesn't loose bits of your document without huge amounts of encouragements
But, there are places where I don't like it. I think it needs a pre-processor or something. My problem:
\def\begeq{\begin{equation}}
\def\endeq{\end{equation}}
...
\beq
\frac{foo}{bar}
\eeq
...
! LaTeX Error: \begin{equation} on input line 54 ended by \end{document}.
Now, I'm (obviously) not an expert, but I've not found a way round this. I get fed up with typing full commands out.
Oh, and I tried making a document style once and now my brain is damaged.
It's fine, generally, but it can get irritating if you're using the same 1918 addresses internally.
My isp uses 172.16.x 192.168.x and 10.x scattered randomly.
Means my traceroutes take longer than is necessary. Of course, I only traceroute when something's wrong, but it *is* an additional irritation when I'm trying to fix stuff.
Kinda in the right ball park:r =e posfpos
:P
http://www.magnumpower.com/sectors.cfm?mp_secto
Alternatively make something yourself, you lazy person!
From the picture at the beginning of the article, it looks like the type of tape my old uni sysadmin archived my mail onto when I burst my quota...
Postmaster: "You were warned. It'll take at *least* 7 days for me to get your mail back"
Me: "Oh. Sorry. Bye"
Me: *close door, walk down corridor*
Postmaster(distant, muffled): "muahahaha"
Additionally, how can you be certain you've not been exploited during the time you were downloading these fixes?
;)
When setting up a machine to be secure do not connect it to a network
Download on a known safe system*, burn to cd, install.
I've had exploit attempts within 5min of connecting a system to the net.
* Not technically possible, but you get the idea
Yum, yes, but: $18,999.00 IBM Web Price*
I could get a very nice car for that. Even down payment on a house.