Say, this reminds me of one of my favorite artists, WEIRD AL YANKOVIC!!!!!!!! Polka Power! from Running With Scissors[Parody of: various artists mix]Lyrics
Well since as something approaches the speed of light, m->infinity, so we can assume he has infinite mass for traveling at 10^9m/s, approximately 3.333 times the speed of light. Therefore, the earth will start revolving around Superman until Spiderman throws a web into the air, which stops Superman. Assuming the web is unbreakable and does not stretch (I don't want to do Hooke's law!) Superman will have almost infinite negative acceleration, turning him into a bundle of dark matter. Intriguing, since theoretically he could only yield ~5.4x10^18 J (1.5x10^12 kWh) of energy.
This brings back memories for me. Anyone in high school physics, have you had these problems before?
The INFAMOUS Doctor J Problems with the puns. e.g. Doctor J was going in circles trying to figure the angular velocity of the electron.
Wile. E. Coyote problems -
(a)Wile E. Coyote, mass 15kg, jumps upwards off a cliff with an initial velocity of 4 m/s. g=9.8 m/s^2. The cliff is 150m high. How fast does he hit?
(b)He lands on a spring of k=15000 N/m. How much force is exerted by the spring at its maximum compression?
(c)If the spring sticks and has a mass of 10kg, how fast does he leave the ground?
(d)What is the probability that Wile E. Coyote runs into CowboyNeal and catches the Roadrunner?
Express all answers in decimals with four significant figures
There's this article I found... some people have developed ways to cool silicon using nothing but silicon! Here's the article. I remember also a little side article about refrigerating silicon (the silicon acts as a active heat dissipater) in Popular Science a few issues back but I'm too lazy to dig through my room or do a web search.
wonder if it'd do anything for people born blind?
I dunno. My impression is no, since they have never seen and would not know how to interpret the signals. Your brain atrophies too, you know. But I could be wrong, since seeing might be an innate behavior.
Bionic Retina Gives Six Patients Partial Sight
Wed May 8,10:30 AM ET
By Julie Steenhuysen
CHICAGO (Reuters) - They're not as fast as Lee Majors' Bionic Man, but six patients implanted with bionic retinas are seeing things they haven't seen in years.
Thanks to an artificial silicon retina, the six patients, many of whom were virtually blind, are rediscovering simple gifts of the sighted: the flight of a flock of geese, the pattern on a well-worn tablecloth, the face of a loved one.
The patients are part of a pilot study of a solar-powered microchip created by Optobionics, a private company based in Wheaton, Illinois.
The microchips, surgically implanted behind the retina, are smaller than the head of a pin and about half the thickness of a sheet of paper. They work by converting light into electrical impulses.
"What we are doing is trying to replace the function of photoreceptors," said Dr. Alan Chow, a pediatric ophthalmologist and chief operating officer of Optobionics. He developed the chip with his brother Vincent Chow, an electrical engineer.
Loss of light-sensing photoreceptor cells occurs in retinitis pigmentosa and macular degeneration, the two most common causes of untreatable blindness in developed countries, affecting at least 20 million people worldwide.
What Dr. Chow found is that the chips also seem to be stimulating remaining healthy cells.
"We're pretty excited. We initially expected only some light perception where the implant was. What seems to be improvement outside the areas was unexpected," he said.
'RESCUE EFFECT'
He said the device is having a "rescue effect" on the retina, restoring cells located near the implant site.
"What we think is happening is the implant is stimulating other cells around the retina. We're finding vision is improving not just where the implant is but also in areas near the implant," he said.
Chow is presenting his results later on Wednesday at the Association for Research in Vision and Ophthalmology annual meeting in Fort Lauderdale, Florida.
The trial includes three patients implanted with the chips for 9 months and three implanted for 21 months. Patients range in age from 45 to 76. All had lost their vision to retinitis pigmentosa, a hereditary condition in which the retina gradually degenerates.
Chow said the study was conducted to determine whether the device is safe. "In all six patients there are no signs of infection, inflammation, rejection or detachment," Chow said. He also said the chip has not eroded or moved, and none of the patients have experienced any pain or discomfort. "None can tell there is an implant in their eye," he said.
What they can tell is that they can see better.
Chow said one patient, who has had the implant for 9 months, saw his wife's face for the first time in years. The man, who previously could only see hand motions from four to five feet away, can now see cars from half a block away.
Another patient, who could not detect light even if a bright light was pointed at his eye, now knows when he needs to turn off his porch light.
For another patient, though, the implant has been a bit sobering, Chow said. The patient, who has begun to recognize faces, was disappointed to see how his own face had aged. But he was quick to note signs of age in his brother, who also received an implant.
Chow said his company will continue following the patients, with implants planned for the near future.
Optobionics' corporate investors include medical device giant Medtronic Inc. and CIBA Vision Corp., the eye care unit of Novartis AG.
Re:And the obligatory....
on
Sony PCG-U1
·
· Score: 0, Troll
3 problems:
1) Moooooola. Mega Moooooola. If 1 is for rich kids, then what is a cluster of these for?
2) Drivers? With something this small, there has GOT to be some integrated components that are Windows Only.
3) Maybe not as big of a problem, but cooling so many of these might be... well, hard.
Seriously, I think rackmounts are better.
Re:Looks pretty ridicluous
on
Sony PCG-U1
·
· Score: 2, Informative
Yes. You can play Unreal Tournament/Half Life/Quake III/Your Favorite Game Here. Try that on a Palm. And this sure beats the processing power of my TI-89's 10 MHz MC68HC360. Bad thing is, though, that when someone tries to steal it from you and you hit them with it, it's too light to leave a lasting imprint.
The Article from Dynamism
on
Sony PCG-U1
·
· Score: 3, Informative
Sony's latest prototype, the PCG-U1, is a wonderful and exotic piece of technology. The "U1" is the smallest and lightest model of the entire "Vaio" series. Indeed, it has long been Sony's conception to shrink a full-featured laptop into an always-carry device; they have succeeded with the Vaio U1. The entire package, including a Crusoe 867 MHz processor, 6.4" (XGA) TFT-LCD, 20gb HDD, 384mb RAM (max), weighs merely 1.8 pounds, and boasts an incredible footprint of only 7.3" x 5.5".
The U1 is designed for easy operation even if the user is holding it in a standing posture. Assuming use with both hands holding the chassis, the PC has a "wide-stick" for the thumb of the right hand which functions as a mouse cursor. The left thumb rests on a button that works as the left and right mouse buttons. There is also a built-in zoom function, which works at the touch of a button. A scrolling "Jog Dial" is also mounted above the keyboard, and integrated ports include a PC card slot, firewire, LAN, a headphone/audio output. Additionally, a pair of built-in USB ports and a VGA output allow the machine to double as a desktop unit.
The U1 demonstrates why Sony is recognized, even by hardened competitors, as the world's leader in miniaturizing consumer devices. Any individual, company, or organization could find a unique use for the U1. Whether the needs is for an eye-catching model unlike anything that has come before, or a powerful tool for use by a sales force out in the field, the Vaio U1 is an unprecedented and unrivaled powerhouse in an ultra-small package.
Tracking use activity online is actually a privacy issue because of the fact that the internet is so vulnerable and because half the time it is not what you bargain for (KaZaA clasic example.) Bookselling tracking is statistical, not (hopefully) for profit, and is (hopefully) anonymous. But it is walking a thin line.
Madison Priest was a big con-artist, true, but if Ted Turner and the rest did their research, wouldn't they have realized that there are physical limitations to a POTS line's bandwidth?
"Statistically, what are the chances?"
Well, the article answers this question pretty good, but I have something to add. This is like that study you may have heard of that linked ice cream sales in Florida with rape. Does that mean all ice cream vendors are rapists? Obviously, no, since I still like ice cream =). Especially Ben & Jerry's. But I'm getting Offtopic. So what if 11 top-level microbiologists died outside the lab? Don't forget, tons of people die EVERY SINGLE DAY and there are 6x10^9 people on the earth. A lot. Even more have EVER walked this earth. So if you look at the chances, they're relatively high.
Not really... I have FreeBSD and RedHat on my older box, since my new one is an HP with that stupid restore partition that I can't change. But it's true that I do use it less than I would like to...
Microsoft will be on Peru's tail for centuries if this law is passed. Although I must say this will suck, the inevitable will happen: Microsoft will sue Peru so many times for petty things like copyright infringement for using an NTFS partition preloaded on a computer for 1 second or something that they will eventually have to give in. But I'll be optimistic. Go FreeBSD! RedHat! Run those M$uckers out of town!
If only someone like AllAdvantage (of course they're dead) picked up on this...
Flash of insight! Put it on your cat and tie him/her to the TV while it's tuned to Jerry Springer!
I understand the space savings advantages of kerosene, but how does the thrust produced per unit weight compare to that of the current SRB/LRB compare? Having to (hypothetically) double the fuel weight to double the thrust seems like a waste of money to me.
So does this mean that the new Dell laptops woth the Quadro4 Go chips in them could be called weapons?
Actually, probably. These laptops aren't exactly lightweight. 80GB HDD, 512MB DDR RAM, 15" UXGA+ Monitor, etc do add up.
oh sorry if this is offtopic...
Slashdot Mirror
Now you know how to get your $6 million Russian Space Shuttle *state-of-the-art*.
Say, this reminds me of one of my favorite artists, WEIRD AL YANKOVIC!!!!!!!!
Polka Power! from Running With Scissors[Parody of: various artists mix] Lyrics
Well since as something approaches the speed of light, m->infinity, so we can assume he has infinite mass for traveling at 10^9m/s, approximately 3.333 times the speed of light. Therefore, the earth will start revolving around Superman until Spiderman throws a web into the air, which stops Superman. Assuming the web is unbreakable and does not stretch (I don't want to do Hooke's law!) Superman will have almost infinite negative acceleration, turning him into a bundle of dark matter. Intriguing, since theoretically he could only yield ~5.4x10^18 J (1.5x10^12 kWh) of energy.
The INFAMOUS Doctor J Problems with the puns. e.g. Doctor J was going in circles trying to figure the angular velocity of the electron.
Wile. E. Coyote problems -
(a)Wile E. Coyote, mass 15kg, jumps upwards off a cliff with an initial velocity of 4 m/s. g=9.8 m/s^2. The cliff is 150m high. How fast does he hit?
(b)He lands on a spring of k=15000 N/m. How much force is exerted by the spring at its maximum compression?
(c)If the spring sticks and has a mass of 10kg, how fast does he leave the ground?
(d)What is the probability that Wile E. Coyote runs into CowboyNeal and catches the Roadrunner?
Express all answers in decimals with four significant figures
(sorry folks, my AP Physics test is Tuesday...)
There's this article I found... some people have developed ways to cool silicon using nothing but silicon! Here's the article. I remember also a little side article about refrigerating silicon (the silicon acts as a active heat dissipater) in Popular Science a few issues back but I'm too lazy to dig through my room or do a web search.
Signing off on bureaucracies can go a shorter way.
wonder if it'd do anything for people born blind? I dunno. My impression is no, since they have never seen and would not know how to interpret the signals. Your brain atrophies too, you know. But I could be wrong, since seeing might be an innate behavior.
Wed May 8,10:30 AM ET
By Julie Steenhuysen
CHICAGO (Reuters) - They're not as fast as Lee Majors' Bionic Man, but six patients implanted with bionic retinas are seeing things they haven't seen in years.
Thanks to an artificial silicon retina, the six patients, many of whom were virtually blind, are rediscovering simple gifts of the sighted: the flight of a flock of geese, the pattern on a well-worn tablecloth, the face of a loved one.
The patients are part of a pilot study of a solar-powered microchip created by Optobionics, a private company based in Wheaton, Illinois.
The microchips, surgically implanted behind the retina, are smaller than the head of a pin and about half the thickness of a sheet of paper. They work by converting light into electrical impulses.
"What we are doing is trying to replace the function of photoreceptors," said Dr. Alan Chow, a pediatric ophthalmologist and chief operating officer of Optobionics. He developed the chip with his brother Vincent Chow, an electrical engineer.
Loss of light-sensing photoreceptor cells occurs in retinitis pigmentosa and macular degeneration, the two most common causes of untreatable blindness in developed countries, affecting at least 20 million people worldwide.
What Dr. Chow found is that the chips also seem to be stimulating remaining healthy cells.
"We're pretty excited. We initially expected only some light perception where the implant was. What seems to be improvement outside the areas was unexpected," he said.
'RESCUE EFFECT'
He said the device is having a "rescue effect" on the retina, restoring cells located near the implant site.
"What we think is happening is the implant is stimulating other cells around the retina. We're finding vision is improving not just where the implant is but also in areas near the implant," he said.
Chow is presenting his results later on Wednesday at the Association for Research in Vision and Ophthalmology annual meeting in Fort Lauderdale, Florida.
The trial includes three patients implanted with the chips for 9 months and three implanted for 21 months. Patients range in age from 45 to 76. All had lost their vision to retinitis pigmentosa, a hereditary condition in which the retina gradually degenerates.
Chow said the study was conducted to determine whether the device is safe. "In all six patients there are no signs of infection, inflammation, rejection or detachment," Chow said. He also said the chip has not eroded or moved, and none of the patients have experienced any pain or discomfort. "None can tell there is an implant in their eye," he said.
What they can tell is that they can see better.
Chow said one patient, who has had the implant for 9 months, saw his wife's face for the first time in years. The man, who previously could only see hand motions from four to five feet away, can now see cars from half a block away.
Another patient, who could not detect light even if a bright light was pointed at his eye, now knows when he needs to turn off his porch light.
For another patient, though, the implant has been a bit sobering, Chow said. The patient, who has begun to recognize faces, was disappointed to see how his own face had aged. But he was quick to note signs of age in his brother, who also received an implant.
Chow said his company will continue following the patients, with implants planned for the near future.
Optobionics' corporate investors include medical device giant Medtronic Inc. and CIBA Vision Corp., the eye care unit of Novartis AG.
3 problems:
1) Moooooola. Mega Moooooola. If 1 is for rich kids, then what is a cluster of these for?
2) Drivers? With something this small, there has GOT to be some integrated components that are Windows Only.
3) Maybe not as big of a problem, but cooling so many of these might be... well, hard.
Seriously, I think rackmounts are better.
Yes. You can play Unreal Tournament/Half Life/Quake III/Your Favorite Game Here. Try that on a Palm. And this sure beats the processing power of my TI-89's 10 MHz MC68HC360.
Bad thing is, though, that when someone tries to steal it from you and you hit them with it, it's too light to leave a lasting imprint.
Sony's latest prototype, the PCG-U1, is a wonderful and exotic piece of technology. The "U1" is the smallest and lightest model of the entire "Vaio" series. Indeed, it has long been Sony's conception to shrink a full-featured laptop into an always-carry device; they have succeeded with the Vaio U1. The entire package, including a Crusoe 867 MHz processor, 6.4" (XGA) TFT-LCD, 20gb HDD, 384mb RAM (max), weighs merely 1.8 pounds, and boasts an incredible footprint of only 7.3" x 5.5". The U1 is designed for easy operation even if the user is holding it in a standing posture. Assuming use with both hands holding the chassis, the PC has a "wide-stick" for the thumb of the right hand which functions as a mouse cursor. The left thumb rests on a button that works as the left and right mouse buttons. There is also a built-in zoom function, which works at the touch of a button. A scrolling "Jog Dial" is also mounted above the keyboard, and integrated ports include a PC card slot, firewire, LAN, a headphone/audio output. Additionally, a pair of built-in USB ports and a VGA output allow the machine to double as a desktop unit. The U1 demonstrates why Sony is recognized, even by hardened competitors, as the world's leader in miniaturizing consumer devices. Any individual, company, or organization could find a unique use for the U1. Whether the needs is for an eye-catching model unlike anything that has come before, or a powerful tool for use by a sales force out in the field, the Vaio U1 is an unprecedented and unrivaled powerhouse in an ultra-small package.
Tracking use activity online is actually a privacy issue because of the fact that the internet is so vulnerable and because half the time it is not what you bargain for (KaZaA clasic example.) Bookselling tracking is statistical, not (hopefully) for profit, and is (hopefully) anonymous. But it is walking a thin line.
If they used slashdot ratings for these books in conjunction with Bookscan, would The CowboyNeal Anime BestSeller 2000 come out on top?
I would take it, except my Greek isn't too good.
WhydoesoneneedtoputupwiththeFDAregulations? Iwasn'ttheonewholeftthecanofJoltopen!
(squeak!)
Say, doesn't that guy look kinda like CowboyNeal?
Madison Priest was a big con-artist, true, but if Ted Turner and the rest did their research, wouldn't they have realized that there are physical limitations to a POTS line's bandwidth?
"Statistically, what are the chances?" Well, the article answers this question pretty good, but I have something to add. This is like that study you may have heard of that linked ice cream sales in Florida with rape. Does that mean all ice cream vendors are rapists? Obviously, no, since I still like ice cream =). Especially Ben & Jerry's. But I'm getting Offtopic. So what if 11 top-level microbiologists died outside the lab? Don't forget, tons of people die EVERY SINGLE DAY and there are 6x10^9 people on the earth. A lot. Even more have EVER walked this earth. So if you look at the chances, they're relatively high.
Not really... I have FreeBSD and RedHat on my older box, since my new one is an HP with that stupid restore partition that I can't change. But it's true that I do use it less than I would like to...
Microsoft will be on Peru's tail for centuries if this law is passed. Although I must say this will suck, the inevitable will happen: Microsoft will sue Peru so many times for petty things like copyright infringement for using an NTFS partition preloaded on a computer for 1 second or something that they will eventually have to give in. But I'll be optimistic. Go FreeBSD! RedHat! Run those M$uckers out of town!
If only someone like AllAdvantage (of course they're dead) picked up on this...
Flash of insight! Put it on your cat and tie him/her to the TV while it's tuned to Jerry Springer!
Venturestar seems mysteriously out of the picture here...
I understand the space savings advantages of kerosene, but how does the thrust produced per unit weight compare to that of the current SRB/LRB compare? Having to (hypothetically) double the fuel weight to double the thrust seems like a waste of money to me.
Can you take this past airline security?
Actually, probably. These laptops aren't exactly lightweight. 80GB HDD, 512MB DDR RAM, 15" UXGA+ Monitor, etc do add up.
oh sorry if this is offtopic...