Back in the 70's, during a public tour I was on at the Marshall Space Flight Center, someone asked this of the Saturn V.
They thought they were being quite funny. The tour guide--without missing a beat--said it depended upon what part of the flight you're talking about, but the average was about 6-inches to the gallon.
In automotive applications 12V is really 13.8VDC when the engine is running and anywhere from 11 to 13VDC when running off the battery.
I have an RV I use as a mobile office with computers and such, too. I just use regular inverters and the generator and have all the equipment running off standard off 120VAC UPS units.
Be aware that some inverters and generators produce a square wave AC output that is bad for some equipment (especially laser printers, I hear).
There are many RVer sites on the web with more info. Check out these sites and their message forums to get started: irv2.com, rvnetwork.com, rv.net.
Ah, yes, Consumer Reports. Quite the oracle of knowledge on computers. For example, in their latest issue they thought the iMac was "annoying" because it didn't come with a built-in floppy drive. What in the world would they do with a floppy drive, anyway? Oh, and Macs are too expensive, too. I like how they thought the "control buttons" on the Apple Studio Display were hard to use. I suppose that's true, especially since it doesn't have any--it's software controlled.
But in the same issue they think the Chevy Avalanche is a better "truck" then the base model Ford and Dodge pickups they tested it against. Of course, this time the nearly $8k price difference didn't seem to bother them much...
Alcoholic beverages are actually present in most hikers' backpacks for this purpose (and also for treating wounds, due to its antiseptic nature).
Hm, I've been backpacking for years and have never heard of this. The only folks I know that carry alcohol into the backcountry have other non-medical uses in mind for it.
As far as its antiseptic properties, you should read "Medicine for Mountanineering" edited by James Wilderson, MD:
"Antiseptics have surprisingly little value in the control of wound infections...The more widely known antiseptics -- alcohol, tincture of iodine, or the mercurial preparations -- injure the tissues and should not be placed directly in an open wound."
Actually, it's not the word that's the problem--it's the attitude of the people that choose to use that word.
Caving is a very dangerous activity--more so than most because it's a very short trip to disaster. Rescue is difficult--no helicopers here folks. An inexerienced person can be just fine one minute and the next--when his flashlight batteries go dead--he's toast. Oh, yeah, those cell phones don't work well underground, either.
"Adventure Sports" are attracting a lot of people these days that should just stay home in front of the TV. Caving is one of the more dangerous of these and it's not to be taken lightly. In addition to the danger there's the aspect of how fragile the cave ecosystem is and how easy it is to do real lasting damage.
However, local caving groups are very receptive of new members. The National Speleological Society can hook you up with a local group if you really want to learn about caves and how to safely explore them.
It works very well, but you have to keep in mind there is some latency as the signal has to travel up to the satellite in the Clarke belt and back down both ways in addition to the latency in the ground network. I have the business service with a static IP address and have seen as much as 2 Mbit/sec download. But the upload is slow--usually around 64 kbit/sec and sometimes as high as 100 kbit/sec but never any higher. It would suck for gaming.
The "modems" require a USB connection and a PC running Windows--you have to use the DIRECWAY software/drivers and it only works on Windows. I run Windows 2000 on the satellite access machine and it works well. Other folks are on XP and 98 but a variety of problems do crop up on the "consumer" versions of Windows I hear.
To let other operating systems access the satellite network you can use Windows' Internet Connection Sharing (ICS). I'm using this and share the connection via Ethernet to an Apple Airport base station and allow my Macs and Linux machines access the network via the wireless connection. It works very well.
BTW, last I heard, EchoStar (the parent of Dish and Starband) were getting out of the Internet access business and leaving DIRECWAY as the sole comsumer satellite Internet provider as part of their yet-to-be-approved takeover of Hughes Electronics (parent of DIRECTV and DIRECWAY).
"We're putting 700 users on a mail system on top of Linux," says Dave Ennen, technical support manager at Winnebago Industries Inc. in Forest City, Iowa. "It's mission-critical."
Oh, yeah. Like the email going down will cause Winnebagos to explode or something. I think they've been around for awhile and did just fine before they got email.
Yep, pretty lame. A pocket size 5-GB harddrive that can play MP3s as well as double as a backup device. And with a 10-hour battery life and firewire. Lame.
Any advise for what is essentially the same role as your TNG character in the new "Enterprise" series? You know, the begal puppy.
Should he apply to starfleet academy?
Should he accept a field commision as an ensign?
Should he take a postion on the bridge?
Or perhaps he should just be careful playing with alien puppys on planets with unknown laws?
We also just bought about $70,000 of servers from Dell. We bought a bunch of their 2450 servers and four of their PowerApp 100 machines.
All are well made and came perfectly preconfigured with Red Hat 6.2 and work just fine.
One annoyance, however, is that the 2450 servers have an intergrated Ultra3 RAID controller OEM'd from Adaptec. They don't supply source for the drivers and the precompiled modules only work with specific kernel versions. I emailed their support about this and was informed by their tech that they only support the hardware and I should "talk to Linux" about my kernel version upgrade problems. They have a few support problems to work out I suspect.
We have four e-machines at Exodus running Linux. Three are Red Hat 5.2 and one is Red Hat 6.0 with stock kernels. All are headless with continue on error configured in the bios. All have serial console enabled. If we need to get into a machine on the rack we just attach to the serial port with a null modem cable and hook it to a laptop and use a terminal program to login to the machine. I haven't had to do a hard reset though; if we need to reboot for whatever reason we just telnet in.
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See the movie "Creator" for background. Not the best movie ever made by any means, but it has its moments.
Iridium is still around and you can easily buy one. I got mine from Infosat a while back.
It works well. The airtime is expensive but SMS is free and includes an email address. It makes a great email pager with global coverage.
"Physics for Poets" by Robert H. March.
This is a excellent introduction to physics and is more approachable for some than either Feynman or Hawking.
That's an AutoCAD feature--not a Windows feature. You could do the same thing with AutoCAD for the Mac (when it still existed).
Back in the 70's, during a public tour I was on at the Marshall Space Flight Center, someone asked this of the Saturn V.
They thought they were being quite funny. The tour guide--without missing a beat--said it depended upon what part of the flight you're talking about, but the average was about 6-inches to the gallon.
This is likely more trouble than it's worth.
In automotive applications 12V is really 13.8VDC when the engine is running and anywhere from 11 to 13VDC when running off the battery.
I have an RV I use as a mobile office with computers and such, too. I just use regular inverters and the generator and have all the equipment running off standard off 120VAC UPS units.
Be aware that some inverters and generators produce a square wave AC output that is bad for some equipment (especially laser printers, I hear).
There are many RVer sites on the web with more info. Check out these sites and their message forums to get started: irv2.com, rvnetwork.com, rv.net.
Ah, yes, Consumer Reports. Quite the oracle of knowledge on computers. For example, in their latest issue they thought the iMac was "annoying" because it didn't come with a built-in floppy drive. What in the world would they do with a floppy drive, anyway? Oh, and Macs are too expensive, too. I like how they thought the "control buttons" on the Apple Studio Display were hard to use. I suppose that's true, especially since it doesn't have any--it's software controlled.
But in the same issue they think the Chevy Avalanche is a better "truck" then the base model Ford and Dodge pickups they tested it against. Of course, this time the nearly $8k price difference didn't seem to bother them much...
I've heard that in the latest update to Office X the Entourage mail limit has been raised to 4-GB and fails more gracefully upon reaching it.
Same here.
We've been using NetTracker for over 3 years now and our customers love it.
Great support and it runs on most platforms. We use it on Solaris now but ran it under Linux for several years with no problems.
As far as its antiseptic properties, you should read "Medicine for Mountanineering" edited by James Wilderson, MD:
Go here and you can read all about the origin of these words and the use of "spelunker" in the same vein as "visual basic programmer".
Actually, it's not the word that's the problem--it's the attitude of the people that choose to use that word.
Caving is a very dangerous activity--more so than most because it's a very short trip to disaster. Rescue is difficult--no helicopers here folks. An inexerienced person can be just fine one minute and the next--when his flashlight batteries go dead--he's toast. Oh, yeah, those cell phones don't work well underground, either.
"Adventure Sports" are attracting a lot of people these days that should just stay home in front of the TV. Caving is one of the more dangerous of these and it's not to be taken lightly. In addition to the danger there's the aspect of how fragile the cave ecosystem is and how easy it is to do real lasting damage.
However, local caving groups are very receptive of new members. The National Speleological Society can hook you up with a local group if you really want to learn about caves and how to safely explore them.
Shh... Don't let the secret out.
Really, it's spelunking folks. And be sure to take a ball of string to mark your path into the cave...
I don't have the Dish system but I do have a Hughes DIRECWAY system on my motorhome with a MotoSat Datastorm mount.
It works very well, but you have to keep in mind there is some latency as the signal has to travel up to the satellite in the Clarke belt and back down both ways in addition to the latency in the ground network. I have the business service with a static IP address and have seen as much as 2 Mbit/sec download. But the upload is slow--usually around 64 kbit/sec and sometimes as high as 100 kbit/sec but never any higher. It would suck for gaming.
The "modems" require a USB connection and a PC running Windows--you have to use the DIRECWAY software/drivers and it only works on Windows. I run Windows 2000 on the satellite access machine and it works well. Other folks are on XP and 98 but a variety of problems do crop up on the "consumer" versions of Windows I hear.
To let other operating systems access the satellite network you can use Windows' Internet Connection Sharing (ICS). I'm using this and share the connection via Ethernet to an Apple Airport base station and allow my Macs and Linux machines access the network via the wireless connection. It works very well.
BTW, last I heard, EchoStar (the parent of Dish and Starband) were getting out of the Internet access business and leaving DIRECWAY as the sole comsumer satellite Internet provider as part of their yet-to-be-approved takeover of Hughes Electronics (parent of DIRECTV and DIRECWAY).
YMMV.
Oh, yeah. Like the email going down will cause Winnebagos to explode or something. I think they've been around for awhile and did just fine before they got email.
Yep, pretty lame. A pocket size 5-GB harddrive that can play MP3s as well as double as a backup device. And with a 10-hour battery life and firewire. Lame.
I've ordered two.
Any advise for what is essentially the same role as your TNG character in the new "Enterprise" series? You know, the begal puppy.
Should he apply to starfleet academy?
Should he accept a field commision as an ensign?
Should he take a postion on the bridge?
Or perhaps he should just be careful playing with alien puppys on planets with unknown laws?
We also just bought about $70,000 of servers from Dell. We bought a bunch of their 2450 servers and four of their PowerApp 100 machines.
All are well made and came perfectly preconfigured with Red Hat 6.2 and work just fine.
One annoyance, however, is that the 2450 servers have an intergrated Ultra3 RAID controller OEM'd from Adaptec. They don't supply source for the drivers and the precompiled modules only work with specific kernel versions. I emailed their support about this and was informed by their tech that they only support the hardware and I should "talk to Linux" about my kernel version upgrade problems. They have a few support problems to work out I suspect.
We have four e-machines at Exodus running Linux. Three are Red Hat 5.2 and one is Red Hat 6.0 with stock kernels. All are headless with continue on error configured in the bios. All have serial console enabled. If we need to get into a machine on the rack we just attach to the serial port with a null modem cable and hook it to a laptop and use a terminal program to login to the machine. I haven't had to do a hard reset though; if we need to reboot for whatever reason we just telnet in.