Prosthetics have been around forever, but they're just simple Mechanical Engineering
They're not as simple as you make them out to be. If they were, you'd see perfect replicas of all limbs by now. Check out this Design News article dated a couple of months ago.
Artificial limbs are still being perfected, either in the area of materials or design. Up to now, artificial joints had to be replaced every few years due to wear. A new plastic has been recently developped to increase the lifespan of these devices.
This will sound like flamebait, but why are people so obsessed with HDCT? It's a good movie, but it's not the martial arts movie to end all movies.
The plot is the ancient "You killed my master now I will kill you". The action scenes are pretty standard. They're even a bit tame when you compare them to something like Corey Yuen's Hero.
So please stop your obsession with a slightly above-average movie.
Is it safer, easier, faster and more reliable to fly with the new integrated graphic displays (as opposed to ten thousand switches and blinking lights)?
Most aircraft cockpits are of the black-cockpit design. Lights only turn on when there's a problem. This attracts attention to the lingt, and the problem.
Ramjets are basically a pipe which is closed on one end during combustion to produce thrust.
This happens at a pretty high frequency, depending on the how efficient the combustion is.
So you need air to make this thing work. You need fuel, which you carry already. If you wanted to travel in space, you'd need to carry oxygen, too, and keep one end permanently closed. So you end up with a rocket.
Ramjets and scramjets are wonderful. But they're plagued by one problem: they're only efficient at speeds over 3 or 4 hundred miles per hour (depending on the configuration, type of engine, etc).
So you need to speed up the damn thing for it to work properly. Booster rockets work well for this, so they'd have to use those.
Btw, the V2 rockets used by Germany in WWIV used ramjets, if I'm not mistaken. I guess they just made them a bit faster now.
Most altimeters based on barometers don't have a precision of 1". You're lucky if they can determine your altitude within 10 ft.
Calculating the distance from the satellites (by multiplying the speed of light by the time it took to receive the signal) would actually be more accurate. Last I heard, GPS satellites actually compensate for the time it takes to send or receive a signal up to six digits after a second (0.000001).
I'm not sure that equipping all aircraft with a GPS system could qualify them for IFR (Instrument Flight Rules, which means that in theory, you could fly the aircraft without looking out the window).
If you stuck a GPS system into a Cessna 150, for example, you'd still need to equip it with a radar, ILS and a number of other devices to have it classified for IFR. On some of these planes, there's either no space or no money to do this.
Also, the GPS alone was to be used to avoid collsions, the data received/sent would have to be processed in real-time and then sent either to the controls or to the pilot, before the collision occured. In a one-on- one situation, this is simple. Around Heathrow, things get a little complicated. I'm not sure that a central/distributed system could actually solve this fast enough.
The bottom line is that it won't be the savior of aviation. It will only be a tool that will help to navigate VFR planes.
But I do want to check: the levitating frog is the real deal, right?
Sure it's the real deal. It's a frog stuck above a pipe that's got air flowing out of it at a high speed.
You can try this at home with a Shopvac turned in reverse (or a leaf blower) and a ping-pong ball. The air rushing out of the pipe creates a lower pressure, which keeps the ball (or the frog in this case) above the pipe.
I typed in my name into google last night and came up with a couple of surprises.
First of all, I am Joe Average of the internet. I have a few a few pages up, I've moved them around a couple of places and was surprised to find ancient URLs of my pages.
What surprised me more is that sites I never heard of (much less visited) advertised a couple of my pages. I don't have much personal information on my pages, but I suddenly thought of all the resumes I've seen online.
Resumes with full contact information of people much more important than me, put up for everyone to see. Then I thought of all the other Joe Averages out there, with pages saying "My name is Joe and I like motorboats, the color blue and Budweiser."
What if somebody out there is actually reading all these pages? It seems like a mundane job, but it seems people will do anything for a buck these days. Some loner sits at his/her terminal for 8 hours a day, gathers 50 addresses, sells them to 5 different companies at 1 buck a piece and makes $250 in a day.
The newer digital Handycams have a jack in the camera that connects to your parallel or serial port. You can then transfer the images from the camera to your computer without any special capture board.
There are two settings for the picture quality (High and Low) so you can take pictures with slightly higher resolution than the video captures. I'm not sure of the [resolution] numbers, but I'm betting that you won't get the quality you can expect from the higher-end digital cameras.
The other advantage I can think of is storage space - a standard 8mm tape fits an hour of digital information (each picture takes approximately seven seconds on tape; there's also a rewritable memory chip that you can store the pictures on for fast retreival).
And, if you get bored with taking pictures, you can always go film stuff.
Just something to ponder.
Cheers, Bart
Re:BOTTOM 10 pickup lines at Calculusgirls.com
on
80 Proof Quickies
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· Score: 1
Damn. I wish I continued after Cal III to learn great lines like that...
Bart
top 10 pickup lines on calculusgirls.com
on
80 Proof Quickies
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· Score: 5
10. Hey. Can I take your derivative?
9. What's your integral?
8. That proof would look great next to my bed in the morning.
7. My vector is a scalar multiple.
6. If you say no, I'll ask again - I'm a detrminant.
5. Ever tried the Implicit Function Theorem on a water bed?
4. Nice equipotential surfaces and curves...
3. Want to see the geometric properties of my gradient vector?
Slashdot Mirror
They're not as simple as you make them out to be. If they were, you'd see perfect replicas of all limbs by now. Check out this Design News article dated a couple of months ago.
Artificial limbs are still being perfected, either in the area of materials or design. Up to now, artificial joints had to be replaced every few years due to wear. A new plastic has been recently developped to increase the lifespan of these devices.
bart
This will sound like flamebait, but why are people so obsessed with HDCT? It's a good movie, but it's not the martial arts movie to end all movies.
The plot is the ancient "You killed my master now I will kill you". The action scenes are pretty standard. They're even a bit tame when you compare them to something like Corey Yuen's Hero.
So please stop your obsession with a slightly above-average movie.
It's called prostalgia. The longing for things that don't exist yet.
Most sci-fi authors are very prostalgic, otherwise we wouldn't be reading about telepotation, time travel and the colonization of other worlds.
www.nerdyboy.com/lifestyle has had the Dating Guide For Geeks for a couple of years now.
Most aircraft cockpits are of the black-cockpit design. Lights only turn on when there's a problem. This attracts attention to the lingt, and the problem.
A great example of UI simplification.
bart
Check out the rest of the website, too. Neat stuff.
Lego set #10892
Maglev train set, 6 figures, 12 feet of superconducting tracks. $4,999.99. Some assembly required.
(I'll take two, please.)
And if he does, will they still do this??
Ramjets are basically a pipe which is closed on one end during combustion to produce thrust.
This happens at a pretty high frequency, depending on the how efficient the combustion is.
So you need air to make this thing work. You need fuel, which you carry already. If you wanted to travel in space, you'd need to carry oxygen, too, and keep one end permanently closed. So you end up with a rocket.
Oh well. No space travel with these babies.
Ramjets and scramjets are wonderful. But they're plagued by one problem: they're only efficient at speeds over 3 or 4 hundred miles per hour (depending on the configuration, type of engine, etc).
So you need to speed up the damn thing for it to work properly. Booster rockets work well for this, so they'd have to use those.
Btw, the V2 rockets used by Germany in WWIV used ramjets, if I'm not mistaken. I guess they just made them a bit faster now.
bart
Is it legal to kill a clone?
I mean, are you killing a human, or does the clone fit into the "cloned for meat/body parts" category?
bart
This is so beautiful. It makes me want to throw my PC outside my window and rush out to buy a Mac. bart
Most altimeters based on barometers don't have a precision of 1". You're lucky if they can determine your altitude within 10 ft.
Calculating the distance from the satellites (by multiplying the speed of light by the time it took to receive the signal) would actually be more accurate. Last I heard, GPS satellites actually compensate for the time it takes to send or receive a signal up to six digits after a second (0.000001).
bart
I'm not sure that equipping all aircraft with a GPS system could qualify them for IFR (Instrument Flight Rules, which means that in theory, you could fly the aircraft without looking out the window).
If you stuck a GPS system into a Cessna 150, for example, you'd still need to equip it with a radar, ILS and a number of other devices to have it classified for IFR. On some of these planes, there's either no space or no money to do this.
Also, the GPS alone was to be used to avoid collsions, the data received/sent would have to be processed in real-time and then sent either to the controls or to the pilot, before the collision occured. In a one-on- one situation, this is simple. Around Heathrow, things get a little complicated. I'm not sure that a central/distributed system could actually solve this fast enough.
The bottom line is that it won't be the savior of aviation. It will only be a tool that will help to navigate VFR planes.
bart
and prints out a story like this one.
Yes, the (soon to be patented) Slashdot Vaporware Generator.
Believe the hype.
... is rather unlikely, no matter what kind of suit you're wearing.
You might as well sport your best sunday suit; your relatives won't have to change you for your funeral.
And if you're lucky, you'll get cremated once you *do* hit that mach 1.5.
At 120x120, the image is the size of a large icon.
A black and white icon.
Save the $200 and get yourself a real digital camera.
Bart
But I do want to check: the levitating frog is the real deal, right?
Sure it's the real deal. It's a frog stuck above a pipe that's got air flowing out of it at a high speed.
You can try this at home with a Shopvac turned in reverse (or a leaf blower) and a ping-pong ball. The air rushing out of the pipe creates a lower pressure, which keeps the ball (or the frog in this case) above the pipe.
Or so I remember from my physics class.
Bart
First of all, I am Joe Average of the internet. I have a few a few pages up, I've moved them around a couple of places and was surprised to find ancient URLs of my pages.
What surprised me more is that sites I never heard of (much less visited) advertised a couple of my pages. I don't have much personal information on my pages, but I suddenly thought of all the resumes I've seen online.
Resumes with full contact information of people much more important than me, put up for everyone to see. Then I thought of all the other Joe Averages out there, with pages saying "My name is Joe and I like motorboats, the color blue and Budweiser."
What if somebody out there is actually reading all these pages? It seems like a mundane job, but it seems people will do anything for a buck these days. Some loner sits at his/her terminal for 8 hours a day, gathers 50 addresses, sells them to 5 different companies at 1 buck a piece and makes $250 in a day.
Or maybe I'm just really paranoid tonight...
Sleep tight.
Bart
Thanks dude.
No wonder you're not getting moderated up. Every moderator's probably too busy leeching from you, or trying to get into the elite 15 users allowed. (:
Bart
When does this thing get decomissionned? I'd like to buy out some time on it.
I'd turn it around, align it with my place, go outside, look up and wave, and have a really nice picture.
Bart
The newer digital Handycams have a jack in the camera that connects to your parallel or serial port. You can then transfer the images from the camera to your computer without any special capture board.
There are two settings for the picture quality (High and Low) so you can take pictures with slightly higher resolution than the video captures. I'm not sure of the [resolution] numbers, but I'm betting that you won't get the quality you can expect from the higher-end digital cameras.
The other advantage I can think of is storage space - a standard 8mm tape fits an hour of digital information (each picture takes approximately seven seconds on tape; there's also a rewritable memory chip that you can store the pictures on for fast retreival).
And, if you get bored with taking pictures, you can always go film stuff.
Just something to ponder.
Cheers,
Bart
Damn. I wish I continued after Cal III to learn great lines like that...
Bart
10. Hey. Can I take your derivative?
9. What's your integral?
8. That proof would look great next to my bed in the morning.
7. My vector is a scalar multiple.
6. If you say no, I'll ask again - I'm a detrminant.
5. Ever tried the Implicit Function Theorem on a water bed?
4. Nice equipotential surfaces and curves...
3. Want to see the geometric properties of my gradient vector?
2. What's your center of convergence?
1. I'm Binomial.