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"Uploaded by djxatlanta on Jul 13, 2010 The wheels that will touch down on Mars in 2012 are several rotations closer to spinning on the rocky trails of Mars. This video clip shows engineers in the JPL clean room where the rover is being assembled as they put all six wheels into motion for the first time. Engineers raised the rover just as a car mechanic would hoist a car to check the wheels, and started the "engine" to get the wheels rotating. The wheel mobility system has 10 motors in all-four for steering the rover and six for driving. During this test, all 10 motors ran in every direction. Each wheel spun forward and backwards. "

Get free, daily practice problems in Physics! AP Physics is challenging, but anyone, with sufficient time and practice, can master the material on the College Board's AP Physics exams. Are you preparing for the AP Physics exam, or looking for study resources? Whether you're a homeschooling student in need of online resources, or just in need of a little tutoring to help you review material covered in your class, you'll find lots of resources

"Scientists in Russia have grown plants from fruit stored away in permafrost by squirrels over 30,000 years ago. The fruit was found in the banks of the Kolyma River in Siberia, a top site for people looking for mammoth bones."

""From January 2009 to January 2012, there had been a gradual increase of about 25 percent in the amount of galactic cosmic rays Voyager was encountering," said Stone. "More recently, we have seen very rapid escalation in that part of the energy spectrum. Beginning on May 7, the cosmic ray hits have increased five percent in a week and nine percent in a month.""

The front edge of the pterosaur wing is bone. in wind tunnel experiments this caused drag, making it aerodynamically less efficient than the wings of birds - which use feathers to create a smoother leading edge.  pterosaurs flew in a slow, controlled way, in particular when they came in to land. That would be important to pterosaurs because they had very thin bones which, according to Mr Palmer, could break on landing.

first real flight experience in this extensive introduction to the aviation industry. Participants receive ground training in our campus facilities, fly in our new C-172 Simulator, and pilot a C-172S aircraft. All flight training is conducted by certified university flight instructors. Participants in this program must be U.S. citizens ages 14-18.

Denman is one of about 80 students in Southwest Learning Centers' aviation program, which allows students to gain flight experience and eventually become licensed pilots. Southwest Learning Centers, a three-school charter complex in Northeast Albuquerque, has been offering a version of the program since 2005. Interest expanded in the past few years

Today In Aviation History - December 29 In 1921… Edward Stinson and Lloyd Bertaud set a world endurance record of 26 hours, 18 minutes and 35 seconds flying a BMW-engined Junkers-Larsen over Roosevelt Field. In 1939… First flight of the Consolidated B-24"

Two computer instructors in the CalWomenTech Project used this information to develop a YouTube Video strategy to help their students improve their skills in binary numbers, a core concept in computer networking.The two videos combined had more than 53,000 views in the last year!

"Today In Aviation History - January 1 - In 1914… The U.S. Weather Bureau begins daily publication of a weather map of the Northern Hemisphere designed specifically as an aid to aviation. In 1914… The world's first scheduled airplane passenger service operated by an airline company - the Airboat Line - begins at 10:00 A.M. when Anthony Janus flies his first passenger from St. Petersburg to Tampa, Florida. The fare for 22-mile over-water flight was $5 with a surcharge if the passenger weighs more than 200 lbs."

The Super Book of Web Tools for Educators There are many teachers who want to start using technology in their classrooms, but just aren't sure where to start. That's why I got together ten prominent ed tech bloggers, teachers, and school administrators to create The Super Book of Web Tools for Educators. In this book there introductions to more than six dozen web tools for K-12 teachers. Additionally, you will find sections devoted to using Skype with students, ESL/ELL, blogging in elementary schools, social media for educators, teaching online, and using technology in alternative education settings."

What do fireworks, love and butterflies have in common? How do muscles work? How do colours appear? What kinds of levitation are possible? Why can we see the stars? Is time travel possible? What is the maximum force found in nature? Which problems in physics are still open? This free physics textbook provides the answers - and guarantees as much pleasure as whatever else you enjoy most in life.

"One Coast Guard senior leader who is doing his part to motivate and enthuse Coast Guard aviators is Rear Adm. Daniel Abel, Deputy Director of Operations at U.S. Northern Command. In an interview at the Women In Aviation, International Conference, Abel shared his perspectives on keeping our aviators safe, encouraging them to be their best, the role of women in our service and the future of Coast Guard aviation."

"Hundreds of aviators from around the world have descended upon Reno, Nevada, for the 2011 Women in Aviation, International Conference. Pilots, mechanics, engineers and aviation enthusiasts alike are all taking part in this year's conference devoted to the themes "Inspire, Enthuse, Innovate." Today we bring you the last of our daily updates from the conference, as Coast Guard aviators share their stories with those in the aviation field and learn from those with whom they share the skies."

A Mathematician's Lament by Paul Lockhart musician wakes from a terrible nightmare. In his dream he finds himself in a society where music education has been made mandatory. "We are helping our students become more competitive in an increasingly sound-filled world." Educators, school systems, and the state are put in charge of this vital project. Studies are commissioned, committees are formed, and decisions are made- all without the advice or participation of a single working musician or composer.

"The very rare sight of seven full-size WW1 Fokker Dr.1 Triplanes replicas in the air together. Each of these aircraft is painted to represent one of the aircraft/pilots that flew as part of Manfred von Richthofen's Jasta 11 in April 1918. As far as we know this is only the second time since 1918 that seven of these aircraft have been seen in the air together at one time (the first time was in 2007)."

Those memories begin in 1966, and long lines of interesting aircraft spring to mind. "Monthan" is Davis-Monthan Air Force base at Tucson, Arizona. Home of AMARC * or MASDC * as it was known when I first "scouted" it out, travelling there all the way from Scotland. As a schoolboy, I had seen a few photographs of a "Boneyard" in Arizona. They showed stacks of Republic F-84F and F-84G Thunderjets piled four high, that captivated me, it still does. I have made several trips to Tucson and hope to visit a few more times. In this section I will be adding photos and slides taken during these visits, mostly in 1968, when I spent two days walking the base with my good friend Tom Baillie.

"# What Is Energy? » * Energy Basics * Forms of Energy o Laws of Energy o Sources of Energy * Energy Units Basics * Energy Calculators * Periodic Table # Energy Sources » * Nonrenewable o Oil (petroleum) o Natural Gas o Coal o Uranium (nuclear) * Renewable o Biomass o Geothermal o Hydropower o Solar o Wind * Electricity o Science of Electricity o Electricity in the U.S. * Hydrogen * Recent Statistics # Using & Saving Energy » * Energy Use Basics * Energy and the Environment o Greenhouse Gases * In Homes * In Commercial Buildings * In Industry * For Transportation * Saving Energy * Recycling # History of Energy » * Energy Timelines o Coal o Electricity o Ethanol o Geothermal o Hydropower o Municipal Solid Waste o Natural Gas o Nuclear o Oil (petroleum) o Photovoltaic o Solar Thermal o Transportation o Wind o Wood * Famous People o Alcorn (1940) o Celsius (1701) o Crosthwait (1898) o Curie (1867) o Dalton (1766) o Diesel (1858) o Drake (1819) o Edison (1847) o Einstein (1879) o Faraday (1791) o Ford (1863) o Franklin (1706) o Goddard (1882) o Goeppert-Mayer (1906) o Gourdine (1929) o Jones (1892) o Joule (1818) o Koontz (1922) o Latimer (1848) o Marconi (1874) o Maxwell (1831) o Meitner (1878) o Newton (1642) o Ohm (1787) o Oppenheimer (1908) o Otto (1832) o Pupin (1858) o Roberts (1913) o Stanley (1858) o Sto

"An attempt to recover a Spitfire from a peat bog in Donegal will highlight the peculiar story of the men - both British and German - who spent much of World War II in relative comfort in neighbouring camps in Dublin,"

"this organic star dust is similar in structure to complex organic compounds found in meteorites. Since meteorites are remnants of the early Solar System, the findings raise the possibility that stars enriched the early Solar System with organic compounds. The early Earth was subjected to severe bombardments by comets and asteroids, which potentially could have carried organic star dust. Whether these delivered organic compounds played any role in the development of life on Earth remains an open question."