has it ever occurred to you that Apple doesn't want to compete with that?
Dell may enjoy selling bargain-basement systems with razor-thin margins, but Apple surely doesn't.
Anybody know what's meant by the "RNA world" term? I'm not sure if this is correct or not, but is that the theory where pre-cellular life used purely RNA for all functions?
Yes, precisely. It's postulated that RNA was the transitional link between non-living chemicals and living organisms with DNA. Even today, the simplest of organisms (viruses) use only RNA to carry their genetic information.
MIT physicists create new form of matter June 22, 2005
CAMBRIDGE, Mass. -- MIT scientists have brought a supercool end to a heated race among physicists: They have become the first to create a new type of matter, a gas of atoms that shows high-temperature superfluidity.
Their work, to be reported in the June 23 issue of Nature, is closely related to the superconductivity of electrons in metals. Observations of superfluids may help solve lingering questions about high-temperature superconductivity, which has widespread applications for magnets, sensors and energy-efficient transport of electricity, said Wolfgang Ketterle, a Nobel laureate who heads the MIT group and who is the John D. MacArthur Professor of Physics as well as a principal investigator in MIT's Research Laboratory of Electronics.
Seeing the superfluid gas so clearly is such a dramatic step that Dan Kleppner, director of the MIT-Harvard Center for Ultracold Atoms, said, "This is not a smoking gun for superfluidity. This is a cannon."
For several years, research groups around the world have been studying cold gases of so-called fermionic atoms with the ultimate goal of finding new forms of superfluidity. A superfluid gas can flow without resistance. It can be clearly distinguished from a normal gas when it is rotated. A normal gas rotates like an ordinary object, but a superfluid can only rotate when it forms vortices similar to mini-tornadoes. This gives a rotating superfluid the appearance of Swiss cheese, where the holes are the cores of the mini-tornadoes. "When we saw the first picture of the vortices appear on the computer screen, it was simply breathtaking," said graduate student Martin Zwierlein in recalling the evening of April 13, when the team first saw the superfluid gas. For almost a year, the team had been working on making magnetic fields and laser beams very round so the gas could be set in rotation. "It was like sanding the bumps off of a wheel to make it perfectly round," Zwierlein explained.
"In superfluids, as well as in superconductors, particles move in lockstep. They form one big quantum-mechanical wave," explained Ketterle. Such a movement allows superconductors to carry electrical currents without resistance.
The MIT team was able to view these superfluid vortices at extremely cold temperatures, when the fermionic gas was cooled to about 50 billionths of a degree Kelvin, very close to absolute zero (-273 degrees C or -459 degrees F). "It may sound strange to call superfluidity at 50 nanokelvin high-temperature superfluidity, but what matters is the temperature normalized by the density of the particles," Ketterle said. "We have now achieved by far the highest temperature ever." Scaled up to the density of electrons in a metal, the superfluid transition temperature in atomic gases would be higher than room temperature.
Ketterle's team members were MIT graduate students Zwierlein, Andre Schirotzek, and Christian Schunck, all of whom are members of the Center for Ultracold Atoms, as well as former graduate student Jamil Abo-Shaeer.
The team observed fermionic superfluidity in the lithium-6 isotope comprising three protons, three neutrons and three electrons. Since the total number of constituents is odd, lithium-6 is a fermion. Using laser and evaporative cooling techniques, they cooled the gas close to absolute zero. They then trapped the gas in the focus of an infrared laser beam; the electric and magnetic fields of the infrared light held the atoms in place. The last step was to spin a green laser beam around the gas to set it into rotation. A shadow picture of the cloud showed its superfluid behavior: The cloud was pierced by a regular array of vortices, each about the same size.
The work is based on the MIT group's earlier creation of Bose-Einstein condensates, a form of matter in which particles condense and act as one big wave. Albert Einstein predicted this phenomenon in 1925. Scientists later realized that Bose-Einstein condensation and superfluid
"So you work on your personal project then google owns it? It seems like it would be more worthwhile to do them on your own time then."
It's not always that simple. Many (most?) companies involved in software development have clauses in their employment contracts / Non-Disclosure Agreements that make it difficult for employees to work on their own projects, even on their own time.
Such a clause might stipulate that any software created during the period of employment is property of the company.
Of course, if you have a pre-existing project you own, you could list that as an exception prior to accepting a job with the company.
Um....weighty? Last time I checked, the 17-inch Powerbook, weighing 6.9 pounds, is the LIGHTEST 17-inch notebook on the market.
Most comparable 17-inch notebooks from HP/Sony/Toshiba are in the 9-10 pound range.
Slashdot Mirror
has it ever occurred to you that Apple doesn't want to compete with that? Dell may enjoy selling bargain-basement systems with razor-thin margins, but Apple surely doesn't.
Egg Freckles!
Yes, precisely. It's postulated that RNA was the transitional link between non-living chemicals and living organisms with DNA. Even today, the simplest of organisms (viruses) use only RNA to carry their genetic information.
The 2.0 firmware does indeed ad WPA support. Hooray?
and a parade of ewoks will smash the first sun with a log. now THAT's an original vision!
MIT physicists create new form of matter
June 22, 2005
CAMBRIDGE, Mass. -- MIT scientists have brought a supercool end to a heated race among physicists: They have become the first to create a new type of matter, a gas of atoms that shows high-temperature superfluidity.
Their work, to be reported in the June 23 issue of Nature, is closely related to the superconductivity of electrons in metals. Observations of superfluids may help solve lingering questions about high-temperature superconductivity, which has widespread applications for magnets, sensors and energy-efficient transport of electricity, said Wolfgang Ketterle, a Nobel laureate who heads the MIT group and who is the John D. MacArthur Professor of Physics as well as a principal investigator in MIT's Research Laboratory of Electronics.
Seeing the superfluid gas so clearly is such a dramatic step that Dan Kleppner, director of the MIT-Harvard Center for Ultracold Atoms, said, "This is not a smoking gun for superfluidity. This is a cannon."
For several years, research groups around the world have been studying cold gases of so-called fermionic atoms with the ultimate goal of finding new forms of superfluidity. A superfluid gas can flow without resistance. It can be clearly distinguished from a normal gas when it is rotated. A normal gas rotates like an ordinary object, but a superfluid can only rotate when it forms vortices similar to mini-tornadoes. This gives a rotating superfluid the appearance of Swiss cheese, where the holes are the cores of the mini-tornadoes. "When we saw the first picture of the vortices appear on the computer screen, it was simply breathtaking," said graduate student Martin Zwierlein in recalling the evening of April 13, when the team first saw the superfluid gas. For almost a year, the team had been working on making magnetic fields and laser beams very round so the gas could be set in rotation. "It was like sanding the bumps off of a wheel to make it perfectly round," Zwierlein explained.
"In superfluids, as well as in superconductors, particles move in lockstep. They form one big quantum-mechanical wave," explained Ketterle. Such a movement allows superconductors to carry electrical currents without resistance.
The MIT team was able to view these superfluid vortices at extremely cold temperatures, when the fermionic gas was cooled to about 50 billionths of a degree Kelvin, very close to absolute zero (-273 degrees C or -459 degrees F). "It may sound strange to call superfluidity at 50 nanokelvin high-temperature superfluidity, but what matters is the temperature normalized by the density of the particles," Ketterle said. "We have now achieved by far the highest temperature ever." Scaled up to the density of electrons in a metal, the superfluid transition temperature in atomic gases would be higher than room temperature.
Ketterle's team members were MIT graduate students Zwierlein, Andre Schirotzek, and Christian Schunck, all of whom are members of the Center for Ultracold Atoms, as well as former graduate student Jamil Abo-Shaeer.
The team observed fermionic superfluidity in the lithium-6 isotope comprising three protons, three neutrons and three electrons. Since the total number of constituents is odd, lithium-6 is a fermion. Using laser and evaporative cooling techniques, they cooled the gas close to absolute zero. They then trapped the gas in the focus of an infrared laser beam; the electric and magnetic fields of the infrared light held the atoms in place. The last step was to spin a green laser beam around the gas to set it into rotation. A shadow picture of the cloud showed its superfluid behavior: The cloud was pierced by a regular array of vortices, each about the same size.
The work is based on the MIT group's earlier creation of Bose-Einstein condensates, a form of matter in which particles condense and act as one big wave. Albert Einstein predicted this phenomenon in 1925. Scientists later realized that Bose-Einstein condensation and superfluid
Well it certainly could be, with Newton Personal Data Sharing.
- A Bluetooth Stack/driver: http://www.40hz.org/Blunt/
- a 802.11b Wi-Fi driver: http://www.ff.iij4u.or.jp/~ngc/eng/newtwave.htm
- an ATA Flash Card driver: http://www.kallisys.com/newton/ata/
For lots of other updated Newton info, check out the Newton FAQ or WikiWikiNewt.It's not always that simple. Many (most?) companies involved in software development have clauses in their employment contracts / Non-Disclosure Agreements that make it difficult for employees to work on their own projects, even on their own time.
Such a clause might stipulate that any software created during the period of employment is property of the company.
Of course, if you have a pre-existing project you own, you could list that as an exception prior to accepting a job with the company.
Um....weighty? Last time I checked, the 17-inch Powerbook, weighing 6.9 pounds, is the LIGHTEST 17-inch notebook on the market. Most comparable 17-inch notebooks from HP/Sony/Toshiba are in the 9-10 pound range.
stolen video codecs Burst YOU!!
The robot dinosaur walks YOU!! Heh.
In SOVIET RUSSIA, your crime reporting car drives YOU!
Nah, Macs are too cool for you. Perhaps this shiny new Gateway Laptop is more up your alley. It's definitely your color!