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STAR TRAK: June 2012

(Phys.org) -- The last transit of the planet Venus until 2117 will happen June 5 in the Western Hemisphere (June 6 in the Eastern Hemisphere). Venus will cross the face of the sun, appearing as a black dot ...

Space & Earth / Space Exploration

created 14 hours ago | popularity not rated yet | comments 0

Cassini spots tiny moon, begins to tilt orbit

(Phys.org) -- NASA's Cassini spacecraft made its closest approach to Saturn's tiny moon Methone as part of a trajectory that will take it on a close flyby of another of Saturn's moons, Titan. The Titan flyby ...

Space & Earth / Space Exploration

created May 22, 2012 | popularity 4 / 5 (2) | comments 2 | with audio podcast

Magnetic monopoles detected in a real magnet for the first time

Researchers from the Helmholtz Centre Berlin, in cooperation with colleagues from Dresden, St. Andrews, La Plata and Oxford, have for the first time observed magnetic monopoles and how they emerge in a real ...

Physics / General Physics

created Sep 03, 2009 | popularity 4.6 / 5 (51) | comments 38

What caused a giant arrow-shaped cloud on Saturn's moon Titan?

(PhysOrg.com) -- Why does Titan, Saturn's largest moon, have what looks like an enormous white arrow about the size of Texas on its surface?

Space & Earth / Space Exploration

created Aug 16, 2011 | popularity 4.5 / 5 (20) | comments 36 | with audio podcast

Microsoft offers $99 Xbox consoles with a catch

Microsoft began testing whether a pricing strategy that has been a hit with smartphones will invigorate sales of its Xbox 360 videogame consoles.

Electronics / Consumer & Gadgets

created May 08, 2012 | popularity 2.3 / 5 (3) | comments 4

New material possible boon for lithium ion batteries

Batteries could get a boost from an Oak Ridge National Laboratory discovery that increases power, energy density and safety while dramatically reducing charge time.

Chemistry / Materials Science

created Sep 08, 2011 | popularity 4.8 / 5 (13) | comments 4 | with audio podcast

Researchers build computer model that explains lakes and storms on Saturn's moon Titan

Saturn's largest moon, Titan, is an intriguing, alien world that's covered in a thick atmosphere with abundant methane. With an average surface temperature of a brisk -297 degrees Fahrenheit (about 90 kelvins) ...

Space & Earth / Space Exploration

created Jan 04, 2012 | popularity 4 / 5 (7) | comments 1 | with audio podcast

A water ocean on Titan?

Oddities in the rotation of Saturn's largest moon Titan might add to growing evidence that it harbors an underground ocean, researchers suggest.

Space & Earth / Space Exploration

created May 05, 2011 | popularity 5 / 5 (23) | comments 57 | with audio podcast

New computer model shows Titan atmosphere more Earth-like than thought

(PhysOrg.com) -- Two scientists from the French National Centre for Scientific Research in Paris have built a computer model that simulates the atmosphere on Titan, one of Saturn’s sixty two moons, and ...

Space & Earth / Space Exploration

created Jan 16, 2012 | popularity 3.9 / 5 (12) | comments 11 | with audio podcast report

If plants generate magnetic fields, they're not sayin'

Searching for magnetic fields produced by plants may sound as wacky as trying to prove the existence of telekinesis or extrasensory perception, but physicists at the University of California, Berkeley, are ...

Physics / General Physics

created Apr 07, 2011 | popularity 4.1 / 5 (9) | comments 7 | with audio podcast

Impact of comets could be responsible for Titan's atmosphere

(PhysOrg.com) -- Titan, Saturn's largest moon, may have had help with the creation of its nitrogen-rich atmosphere, according to a new study published in Nature Geoscience. Scientists believe that multip ...

Space & Earth / Space Exploration

created May 09, 2011 | popularity 4.2 / 5 (5) | comments 7 | with audio podcast report

Cassini sees seasonal methane rains transform Titan's surface (w/ video)

(PhysOrg.com) -- As spring continues to unfold at Saturn, April showers on the planet's largest moon, Titan, have brought methane rain to its equatorial deserts, as revealed in images captured by NASA's Cassini ...

Space & Earth / Space Exploration

created Mar 17, 2011 | popularity 5 / 5 (7) | comments 6 | with audio podcast

Avoid swimming in interplanetary lakes: Research confirms oily 'water' on Saturn's moon

Titan, one of Saturn's moons, is the only moon in the solar system with an atmosphere -- ten times denser than the atmosphere of Earth. Five years ago, the Cassini-Huygens mission to Saturn, a collaboration ...

Space & Earth / Space Exploration

created Sep 21, 2010 | popularity 4.2 / 5 (21) | comments 11 | with audio podcast

What is Consuming Hydrogen and Acetylene on Titan?

(PhysOrg.com) -- Two new papers based on data from NASA's Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturn's moon Titan. While non-biological chemistry offers one possible ...

Space & Earth / Space Exploration

created Jun 03, 2010 | popularity 4.9 / 5 (35) | comments 19 | with audio podcast

The many moods of Titan

(PhysOrg.com) -- A set of recent papers, many of which draw on data from NASA's Cassini spacecraft, reveal new details in the emerging picture of how Saturn's moon Titan shifts with the seasons and even throughout ...

Space & Earth / Space Exploration

created Feb 23, 2012 | popularity 4.4 / 5 (9) | comments 6 | with audio podcast

Titanium

Titanium (pronounced /taɪˈteɪniəm/) is a chemical element with the symbol Ti and atomic number 22. Sometimes called the “space age metal”, it has a low density and is a strong, lustrous, corrosion-resistant (including to sea water, aqua regia and chlorine) transition metal with a silver color. Titanium can be alloyed with iron, aluminium, vanadium, molybdenum, among other elements, to produce strong lightweight alloys for aerospace (jet engines, missiles, and spacecraft), military, industrial process (chemicals and petro-chemicals, desalination plants, pulp, and paper), automotive, agri-food, medical prostheses, orthopedic implants, dental and endodontic instruments and files, dental implants, sporting goods, jewelry, mobile phones, and other applications. Titanium was discovered in England by William Gregor in 1791 and named by Martin Heinrich Klaproth for the Titans of Greek mythology.

The element occurs within a number of mineral deposits, principally rutile and ilmenite, which are widely distributed in the Earth's crust and lithosphere, and it is found in almost all living things, rocks, water bodies, and soils. The metal is extracted from its principal mineral ores via the Kroll process or the Hunter process. Its most common compound, titanium dioxide, is used in the manufacture of white pigments. Other compounds include titanium tetrachloride (TiCl4) (used in smoke screens/skywriting and as a catalyst) and titanium trichloride (TiCl3) (used as a catalyst in the production of polypropylene).

The two most useful properties of the metal form are corrosion resistance and the highest strength-to-weight ratio of any metal. In its unalloyed condition, titanium is as strong as some steels, but 45% lighter. There are two allotropic forms and five naturally occurring isotopes of this element; 46Ti through 50Ti, with 48Ti being the most abundant (73.8%). Titanium's properties are chemically and physically similar to zirconium.

For more information about Titanium, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: atmosphere , cassini spacecraft , saturn , moon