| Comet (53) |  |
That alone made innovative solutions developed by the EU-funded project COMET very attractive to industry in Europe. illing machines are fantastic
COMET has managed to get robot accuracy down to 0. 05 mm, which is a significant improvement on today machines. e proved with our seven tech demos that,
COMET improved the absolute positioning accuracy of industrial robots so they could quickly react to changing conditions during production.
COMET has come up with an integrated programming and simulation environment (PSIR), as developed by partner Delcam,
and national project partners to explore new applications for COMET robotics solutions in fields such as grinding, abrasive finishing,
and laser and fluid polishing. he software Delcam developed under COMET is already generating up to a million euros in additional sales,
each requiring tool monitoring systems like those developed in COMET. Fraunhofer IPA, another partner from Germany, carried out advanced R&d on a compensation mechanism (HDCM)
One of the keys to COMET success says Gunnink, has been to include robot integrators, like SIR and Gizelis from the start:
Although Edmund Halley who also discovered the famous comet showed the westward-drifting motion of the Earth s geomagnetic field in 1692 it is the first time that scientists have been able to link the way the inner core spins to the behavior of the outer core.
near-surface reservoirs or by impacting comets, Agee says. But Jeffrey Taylor of the University of Hawaii in Honolulu says that
When the Rosetta spacecraft sends its lander to the surface of a comet on 12 november the lander will follow prearranged orders from Earth to touch down safely
Comets asteroids and icy moons have shown all signs of venting plumes into space. But because these bodies are far from Earth
The researchers tested the software on unprocessed images of comet Hartley 2 and Saturn's moon Enceladus.
The program looks for bright material outside the limb of the moon or comet checks that the material meets up with the surface
and pressure of the asteroid or comet impact that made the crater about 23 million years ago.
Asteroid and comet impacts are ubiquitous in the solar system so Pontefract thinks impacts could have helped kick-start life on rocky planets
#Crack a comet to spawn the ingredients of life Some of the key ingredients for life may have been shocked into existence.
A physical simulation of a comet's impact with a planet shows that the conditions are extreme enough to create amino acids within the comet's ice.
whether life or its ingredients could have travelled to Earth on the back of a comet or asteroid.
Comets are known to contain the organic precursors of amino acids which are the building blocks of proteins.
What's more one comet Wild 2 was shown recently to contain the simplest amino acid glycine.
The idea is that a comet would contain the raw materials for life-building compounds says Nir Goldman of Lawrence Livermore National Laboratory in California who made the theoretical calculations.
When a comet impacts a planetary surface it creates very high pressures and temperatures. Those will then drive the raw materials that already exist in the comet to form more complex things that could be life-building.
To find out if this works in practice Price and colleagues made model comet ice in the lab containing various amounts of ammonia carbon dioxide and methanol.
Then they shot the ice with a steel pellet travelling at about 7 kilometres a second to simulate the comet smacking into a planet
or another body colliding with the comet. The goop that remained after the ice was evaporated away was analysed by Price's colleague Zita Martins at Imperial College London who found it contained the amino acids alanine and norvaline.
This is significant as we now have a simple realistic mechanism to generate amino acids Price says.
But then you can have a comet come in and that impact will drive prebiotic processes within the comet itself regardless of
what the planet looks like. Journal reference: Nature Geoscience DOI: 10.1038/ngeo1930correction: When this article was published first on 15 september it did not give details of the researcher who detected amino acids in the ice.
For instance others have suggested that Mars lost its atmosphere all of a sudden during a powerful collision with an asteroid or comet.
At about the distance of the Kuiper belt the region past Neptune where comets are born the would-be planet cores can't get much bigger than a millimetre.
so it might be more of a comet factory says van der Marel. We really hope that in the next coming years we're going to find similar dust traps around other stars where they are close enough to the star that they can form a planet she says.
and deuterium that scientists observe in Earth s oceans and on comets. Because of that the researchers estimate that anywhere between 7 and 50 percent of Earth s water had to have come from the interstellar medium in
The Perseids make an August appearance each year as the Earth passes through debris shed by the comet Swift-Tuttle.
and ice shed by the comet that enter the atmosphere at 37 miles per second (60 km/s). As they hit the atmosphere,
on its orbital path through space, collides with particles from a comet or an asteroid. The Perseids come from the tail of Comet Swift-Tuttle,
which last made its closest approach to Earth in 1992. This week marks the peak of the Perseid meteor shower,
and the ice grains produced by collisions among asteroids and comets in the Solar system.""Metchev's team conducted a study with data from NASA's Wide-field Infrared Survey Explorer (WISE TO search for any thermal glow that such dust
"And more data from the European space agency's Herschel Space observatory reveal that 51 Eridani is surrounded also by a more distant and colder cometary belt, much like the Kuiper belt of comets beyond Neptune in the Solar system."
and a belt of comets,"explains Metchev.""In 51 Eridani, we are therefore seeing what the Solar system resembled at a very young age,
because of the radiation pressure the tails of comets typically point away from the Sun. Radiation pressure has also been proposed as the propulsion for the solar sails.
These limitations in both technologies mean that patients may see fuzzy, comet-like shapes or blurred outlines,
The tail of the Comet Swift-Tuttle, which last passed near the Earth in 1992, leaves such debris in the Earth path.
#Comet: A supercomputer for the ong tailof science The San diego Supercomputer Center (SDSC) at the University of California, San diego this week formally launched omet,
and across a wider range of domains. he launch of Comet marks yet another stage in SDSC leadership in the national cyberinfrastructure ecosystem,
Comet is designed to meet the emerging requirements often referred to as the ong tailof sciencehe idea that the large number of modest-sized computationally based research projects represent, in aggregate,
Comet joins SDSC Gordon supercomputer as another key resource within the NSF XSEDE (extreme Science and Engineering Discovery Environment) computer resource-sharing system
SDSC used the formal launch of Comet to also celebrate 30 years as a national resource for advanced computation.
and Society Comet is configured to help transform advanced computing by expanding access and capacity not only among research domains that typically rely on HPCUCH as chemistry
Some of the domains already being served by Comet include: Astrophysics: Supercomputers can greatly accelerate timescales for researching the origins of the universe.
Key Features of Comet: 2 petaflops of overall peak performancene million billion operations or calculations per second.
which involved all the planets in the Solar system getting pummelled by comets and asteroids for two or three hundred million years.
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