Techincally, RSVP is an abbreviation of the French
phrase "Repondez, s'il vous plait" (which loosely
translated is "Respond, please"... more literally
"respond, if it pleases you"). So, the final three
letters SVP take the place of "Please".
Similar, but not quite as obviously redundant as the
other examples cited.
1% use csh because that was cutting edge in 1982 when they went to UCB
Actually, I use tcsh because I got used to
csh when I used BSD4.2 on a VAX in 1983-84 and SunOS4 on a Sun3 (1989-92) and a SparcStation 1 (1992-95).
Then I discovered that tcsh had the same syntax plus
command line editing (I happen to prefer emacs key-bindings).
if they are photons, wouldn't we just need a mirror?
Only if they were photons with a frequency from within the range known as "visible light".
Visible light has a range of frequencies from 4 to 7.5 x 10^14 Hz. Gamma rays have a range of frequencies in excess of 10^20 Hz. So, about a million times more energy.
No, actually gamma rays are electromagnetic radiation
(if you insist on having a particle, think "photon")
of a particular range of frequencies.
Neutrons are neutral particles found in the nucleus
of most atoms (hydrogen-1 being the only exception).
They are liberated when something else colides with
the nucleus, such as another particle (charged or not) or a burst of energy.
This would not do any good unless the particles
have a charge,
Well, according to the article, the particles about
which they are worrying are mostly ions (as heavy as
iron) which are by definition charged. Only gamma
rays (which they didn't seem too worried about) and
neutrons (which it implied would only be generated
when other particles collided with the ships structural components) aren't charged (and are
relevant in the context of solar radiation).
but still it could shield the crew and provide
propulsion.
Yes, it seems it would do both. This seems like an
exceptionally cool idea. The kind of thing that could make the difference between us getting there
in the next couple decades, or getting there in another century or two (or never).
Thanks for the info. Alas, my FreeBSD machine is
currently running "headless" (with 64MB RAM and a Pentium 133 CPU, it runs a tad slow with X... but it
did work well enough that I used it that way while my Linux machine was broken).
Also, I added the extra graphics card and monitor
after I'd done the initial RedHat install, so it may
have done a better job auto-configuring for me then.
the video card I bought to facilitate my two-monitor setup
Here's a question:
Will Windows handle multiple monitors, each attached
to a separate video card, or do I need a dual-head
video card?
My home Linux machine uses 1 AGP card attached to a
21" Hitachi monitor, and a PCI card attached to a 17" Gateway monitor.
(picture)
I do wish, though, that Xinerama (what I use under Linux (RedHat 9, in my case) to handle multiple
monitors) was easier to set up (I had to edit my
XF86Config file by hand). For those who want to do
it, but need instructions, I found a nice
web page.
"Nobody wanted to do any harm to anyone. Obviously, nobody wants to hurt the crew. These people are our friends. They're our neighbors. We run with them, work out in the gym with them. My husband is an astronaut. I don't believe anyone is at fault for this."
Her husband is an astronaut?
Hmm... "Ham"... that name rings a bell. Was he
perhaps one of the earliest Mercury astronauts?
(See
picture.)
I have several machines at home, both Linux (4 RedHat machines of different versions) and BSD (one
NetBSD/sparc and one FreeBSD/x86). In my experience,
Linux (especially RedHat) is easier to install
and get configured (e.g. XFree86/Gnome), so it makes
sense that a beginner might gravitate towards it.
And, RedHat has gotten better. During the install,
it asks you which (if any) services you want to run.
All others are turned off. And, you get asked about
the level of firewall you want (I selected medium,
and it blocked all incoming packets to priviledged
ports, except ssh, which I'd checked as a service
to run).
That isn't to say that BSD isn't more secure. I especially like the nightly security
audits that get emailed to me (things like: list of
accounts with uid 0, diffs of files under/etc, and
so on).
Just so you know, in Europe they actually try to re-educate the prisoners
Oooo! That's a picture that warms my heart. Darl,
sitting in a darkened theater, with his eyes clamped
open, watching Linux source code scroll by, until he
finally swears off "the old ultra-litigation".
Ah yes. Such original names. No wonder I forgot.:-)
krieger is next to the library, across the quad from Remsen
If you mean the building I think, we called that Roland Hall. It was Physics classrooms and labs, and
some Math (my Calc III prof. had his office there).
the steam tunnels underneath campus (shhhhh! it's "illegal" to be there!)
Hee hee... Have any students not been in the
steam tunnels?:-) I once tried having a "beach party in February" down there, but we got a bit too
loud, and all the janitor guy did was tell us to
leave.
There wasn't a Krieger Hall when I was there. Did it used to have a different name? And the "new new" dorms to which I referred were the buildings
behind the AMR II (which we called "new" dorms, a
relative term) and next to the baseball field.
Since Ethernet hadn't yet been (or was just)
invented while I was there, no LAN connections
anywhere.
Yeah, the Homewood was pretty decrepid... And
Wolman and McCoy weren't too much better. After
my freshman year, I got an apartment on the far side of Union Memorial (along University Blvd).
not as much of a common problem if you aren't using Gnome2.
Actually, I'm running RedHat 9, which I think uses
Gnome 2, doesn't it? It does use XFree86 4.3.
I previously had an All-In-Wonder Rage 128, with which I used the Gatos drivers. It gave me pretty
good 3D performance, but the docs seemed to suggest
the DRI drivers were incompatable with the drivers
I'd need to use to run Video4Linux and watch TV.
Guess I just need to keep reading Linux-specific
reviews when I can find them. Thanks for the info.
Ah, you youngsters!:-) I remember when Maryland 109 (the "terminal room") had real VT100 terminals in it, which connected to the VAX in Barton, or the IBM in the basement of Garland. In fact, when I
first showed up, they had a PDP-11 running 7th
Edition Unix.
In fact, I was a monitor in Maryland 109 as my work study job. What the heck do they have in there now? PCs? Windows PCs? Linux PCs?
Boy, it brings back memories.:-) They were just
building the "new new dorms" (is it still frosh-only in the dorms?), Mudd Hall, and the Space
Telescope Institute.
Nine times out of ten, it's a problem with the closed-source nVidia binaries.
ATi isn't much better, however.
Ok, so which card should a discerning Linux user get? I'm shopping for a new card. I want good 3D
performance, as I'm teaching myself OpenGL programming. Matrox? Can I get a decent card for
something in the $100 range?
You cant bend fibres, or light will just come shooting out.
Actually, you can bend fibers to a certain minimum
radius. The light is reflected off the inside wall
of the fiber. Long-haul connections use something
called "single-mode" fibers, which I believe is made from glass fibers. Shorter connections use a plastic fiber, called "multi-mode", which can bend more.
But, I guess what the article is saying is that the minimum radius (i.e. how "sharp" the bend is) is larger for higher power signals, and as
carriers increase the power (for more bandwidth)
they may discover some of the existing bends in
their fiber infrastructure suddenly become too sharp.
To understand the radius/diameter of a bend, imagine the fiber following the outside of a circle with the given radius or diameter. If you need a
90-degree turn, you follow around 1/4 of the circumference of the circle.
That's similar to what happens with ESMTP (yes, there
already is a "new improved SMTP"). If the client
understands ESMTP, it sends a new command to begin
the conversation ("EHLO" instead of the older "HELO"). If the server is old, SMTP-only, it sends
an error message, and the client tries again with
plain old SMTP. If the server does do ESMTP, it sends
a reply, along with the list of ESMTP goodies it understands. Some of the goodies are sending msg size
ahead of time (so the server can reject the message due to size limitations before the whole message gets transferred), delivery status notification,
and so on. None of the current "capabilities" really help filter out spam, but if you come up with a new feature, you can add it as an ESMTP capability, and whenever both client and server support it, it will be used.
Another issue is as mentioned in the article that
many of the current desktops are running Windows 3.1. It is probably cheaper to run an already licensed copy of Windows 3.1 (inside VMware) on a new P4 than to buy a new copy of Win2000/XP/etc.
(I'm sure you won't be able to run Win3.1 on a P4
or Athlon natively, at least not well...)
So
all those Win-Nuts saying "see, they're buying
Windows anyway!" are probably wrong.
Relax. IBM strung along to DoJ for twelve years... how long do you think they can keep SCO in court? In fact, keeping the trial going while doing everything possible to increase SCO's burn rate until they go bankrupt may be IBM's strategy.
Actually, I'd think IBM would prefer to get this
over with sooner, rather than later.
The longer it drags on, the more SCO can
spread their FUD with no accountability (backing up their claims with facts).
I'd be willing to work on something like that. But, if we need to be compatible with certain equipment, we'd need that equipment to work with. In some cases, it's as simple as a PC with a cash-drawer, but in other cases there are more specialized things you'd need to work with.
If someone else can do the specifications (e.g. requirements, communications protocols with which we need to be compatible, etc.), I can try digging up some more programmers to help. I'm already registered on SourceForge, but don't yet have an
open source project.
I suspect once we get the basic project working,
we can probably get donated equipment to work on,
but initially we can work on just the most basic
POS equipment (or even just simulate it).
I'm suprised no-one seems to have pointed out the difference between a sling (payload at end of inelastic tether orbiting around central stationary point... much like this proposal).. and a slingshot (payload at one end of elastic band which is attached to stationary point). Two different ideas which just happen to have similar names.
Slashdot Mirror
Similar, but not quite as obviously redundant as the other examples cited.
Visible light has a range of frequencies from 4 to 7.5 x 10^14 Hz. Gamma rays have a range of frequencies in excess of 10^20 Hz. So, about a million times more energy.
Neutrons are neutral particles found in the nucleus of most atoms (hydrogen-1 being the only exception). They are liberated when something else colides with the nucleus, such as another particle (charged or not) or a burst of energy.
Also, I added the extra graphics card and monitor after I'd done the initial RedHat install, so it may have done a better job auto-configuring for me then.
Will Windows handle multiple monitors, each attached to a separate video card, or do I need a dual-head video card?
My home Linux machine uses 1 AGP card attached to a 21" Hitachi monitor, and a PCI card attached to a 17" Gateway monitor. (picture)
I do wish, though, that Xinerama (what I use under Linux (RedHat 9, in my case) to handle multiple monitors) was easier to set up (I had to edit my XF86Config file by hand). For those who want to do it, but need instructions, I found a nice web page.
And, RedHat has gotten better. During the install, it asks you which (if any) services you want to run. All others are turned off. And, you get asked about the level of firewall you want (I selected medium, and it blocked all incoming packets to priviledged ports, except ssh, which I'd checked as a service to run).
That isn't to say that BSD isn't more secure. I especially like the nightly security audits that get emailed to me (things like: list of accounts with uid 0, diffs of files under /etc, and
so on).
Anyway, back to the discussion, me droogs. :-)
There wasn't a Krieger Hall when I was there. Did it used to have a different name? And the "new new" dorms to which I referred were the buildings behind the AMR II (which we called "new" dorms, a relative term) and next to the baseball field. Since Ethernet hadn't yet been (or was just) invented while I was there, no LAN connections anywhere.
Yeah, the Homewood was pretty decrepid... And Wolman and McCoy weren't too much better. After my freshman year, I got an apartment on the far side of Union Memorial (along University Blvd).
I previously had an All-In-Wonder Rage 128, with which I used the Gatos drivers. It gave me pretty good 3D performance, but the docs seemed to suggest the DRI drivers were incompatable with the drivers I'd need to use to run Video4Linux and watch TV.
Guess I just need to keep reading Linux-specific reviews when I can find them. Thanks for the info.
In fact, I was a monitor in Maryland 109 as my work study job. What the heck do they have in there now? PCs? Windows PCs? Linux PCs?
Boy, it brings back memories. :-) They were just
building the "new new dorms" (is it still frosh-only in the dorms?), Mudd Hall, and the Space
Telescope Institute.
But, I guess what the article is saying is that the minimum radius (i.e. how "sharp" the bend is) is larger for higher power signals, and as carriers increase the power (for more bandwidth) they may discover some of the existing bends in their fiber infrastructure suddenly become too sharp.
To understand the radius/diameter of a bend, imagine the fiber following the outside of a circle with the given radius or diameter. If you need a 90-degree turn, you follow around 1/4 of the circumference of the circle.
Check out RF2821.
Yeah, I know, if I have to explain a joke, it's not funny. Oh well...
Is this really Slashdot? :-)
Another issue is as mentioned in the article that many of the current desktops are running Windows 3.1. It is probably cheaper to run an already licensed copy of Windows 3.1 (inside VMware) on a new P4 than to buy a new copy of Win2000/XP/etc. (I'm sure you won't be able to run Win3.1 on a P4 or Athlon natively, at least not well...) So all those Win-Nuts saying "see, they're buying Windows anyway!" are probably wrong.
Even if so, Scribus has one feature I don't see Quark matching: It's free as well as being Open Source.
If someone else can do the specifications (e.g. requirements, communications protocols with which we need to be compatible, etc.), I can try digging up some more programmers to help. I'm already registered on SourceForge, but don't yet have an open source project.
I suspect once we get the basic project working, we can probably get donated equipment to work on, but initially we can work on just the most basic POS equipment (or even just simulate it).
I'm suprised no-one seems to have pointed out the difference between a sling (payload at end of inelastic tether orbiting around central stationary point... much like this proposal).. and a slingshot (payload at one end of elastic band which is attached to stationary point). Two different ideas which just happen to have similar names.
What size CD-R's were you using? I think the latest RedHat ISO's require 700MB blanks, not the plain old 650MB blanks.