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With water all around us in Seattle, the float plane offers incredible freedom. This video is about the history of seaplanes at Lake Union, which is unique because it is in the middle of Seattle and hosts a variety of watercraft all sharing the lake. Enjoy this video on a fascinating form of aviation set in the scenic beauty of the NW.

The Periodic Table of Videos http://www.periodicvideos.com/ is a collection of videos created by the University of Nottingham's School of Chemistry and video journalist Brady Haran. There is a video for each of the 118 elements on the table.

NASA | Art: 50 Years of Exploration Exhibit For almost 50 years, artists participating in the NASA art program have been documenting the extraordinary adventure of spaceflight in ways no camera could match. They have enjoyed access to some epic moments and offered their unique perspectives on what they have witnessed. The NASA art collection, shared now by the space agency and the National Air and Space Museum, stands as a reminder of pioneering years of the early Space Age and an inspiration for those who will continue our long journey into the universe. The exhibition includes approximately 70 paintings, drawings, photographs and pieces of sculpture by such artists as Annie Leibovitz, Nam June Paik, Robert Rauschenberg, Norman Rockwell, Andy Warhol and Jamie Wyeth.

"It depends on what you define as "electricity". Do you mean the flow of "electrons" or the flow of "current"? Because, due to an unfortunate quirk of history, the direction of *current* flow is opposite to the direction of *electron* flow. "

"scientists at Dalhousie University, concludes that there are about 8.7 million species on Earth. The team analyzed the numerical relationship between species, genus, family and order in well-studied life-forms and used that pattern to estimate the number of species in categories of life that haven't been well studied. Some scientists argue that that almost surely underestimates some lesser-known classes of life. Only some 1.25 million species have been described in the 253 years since Linnaeus devised the method we use to name them. This means that if there are, indeed, roughly 8.7 million species over all, nearly 90 percent of the species on Earth have not yet been discovered and described. "

"Mechanical Waves are waves which propagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling."

"mathematics. It is every bit as mind blowing as cosmology or physics (mathematicians conceived of black holes long before astronomers actually found any), and allows more freedom of expression than poetry, art, or music (which depend heavily on properties of the physical universe). Mathematics is the purest of the arts, as well as the most misunderstood. http://www.maa.org/devlin/LockhartsLament.pdf Please read this long but enjoyable and very thought provoking essay from Paul Lockhart - it will change your idea of what education should be."

Duxford Spitfire and P-51 Taken at Duxford RAF and USAAC Museum in England. Two of the greatest WWII fighter planes of their era....the American P51 Mustang and the British Supermarine Spitfire. Both planes were powered by the powerful Rolls Royce Merlin engine......which emitted that wonderful sound that became known to many as 'The Sound of Freedom' during the 1940s. Such memories for those of us who were around at the time. P-51 pilot does a great job staying in his position as he has more power and is faster than the spitfire. they must have done a bit of practicing.

"# 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

""The Fabric of the Cosmos," a four-hour series based on the book by renowned physicist and author Brian Greene, takes us to the frontiers of physics to see how scientists are piecing together the most complete picture yet of space, time, and the universe. With each step, audiences will discover that just beneath the surface of our everyday experience "

"New rap music video is a tribute to the accomplishments of African-American inventors and their contributions to our society. Many of their inventions were so revolutionary that they have made significant changes to thousands of lives and will continue to do so for many decades. Malvern rapper, Jair Dynast is determined to spark debate about the negative stereotypes of hip hop culture and change attitudes by quietly inspiring youngsters that experience adversity. Be sure to watch the high quality version hip hop video. Category Music License Standard YouTube License "

"For scientists and engineers in the new social robots field, finding out what gives a robot the appearance of emotion or personality is essential. In the case of these little LEGO walking bots, it is mostly a matter of the way they move. The particular motions and speed create a pattern of movement that we interpret as a personality"

"fascinating devices that don't work. It houses diverse examples of the perverse genius of inventors who refused to let their thinking be intimidated by the laws of nature, remaining optimistic in the face of repeated failures. Watch and be amazed as we bring to life eccentric and even intricate perpetual motion machines that have remained steadfastly unmoving since their inception."

The National Aviation Hall of Fame was founded in 1962 as an Ohio non-profit corporation in Dayton, Ohio, the home of the Wright Brothers and the "birthplace of aviation." The five founders of this organization were James W. Jacobs, Gregory C. Karas, John A. Lombard, Larry E. O'Neil, and Gerald E. Weller.

"Welcome to the First Flight Society, one of aviation's oldest organizations. We invite you to become a part of aviation's past, present and future by joining the Society. Your membership will help us accomplish our goals of memorializing the accomplishments of Wilbur and Orville Wright and promoting aviation in all its forms. "

"On May 5, 1961, only 23 days after Yuri A. Gagarin of the Soviet Union became the first man in space, Shepard was launched at 9:34am EST aboard the spacecraft he named Freedom 7 (MR-7) powered by a Redstone booster (MR-3).19 He was launched suborbitally to an altitude of over 116 miles, 303 statute miles down range from Cape Canaveral. His 15 minute 28 second flight achieved a velocity of 5,134 miles per hour and pulled a maximum of 11G's.20 Freedom 7 splashed down in the Atlantic Ocean where the aircraft carrier Lake Champlain awaited his arrival."

"The first invention of man is said to be a primitive tool which consisted of a split stone and served a wide range of purposes. After this basic tool, man prepared the hand axe, knife, and many other tools and instruments. All these discoveries and inventions led to the evolution of human civilization. "

"History of Glaciers in Glacier National Park Aerial photos of Chaney Glacier showing decrease in glacial area. 1850s margin was delineated from morainal evidence, 2005 margin delineated by GPS.The history of glaciation within current Glacier National Park boundaries spans centuries of glacial growth and recession, carving the features we see today. "

"The laboratory will provide online access to data from real physical instruments and equipment - developing cutting-edge technology including: remote access to laboratories and observatories: students can operate real physical equipment controlled remotely - a method already established in astronomy virtual laboratories and instruments, such as the virtual microscope: interactive screen experiments will include photo-realistic recordings of physical experiments and replicate the behaviours of real specimens online field investigations: these can involve electronic access to a conventional field trip or offer a virtual experience using satellite-borne and remotely-operated sensors citizen science: a distributed way of gathering data, where non-professionals collect or process data as part of a scientific enquiry. This data can be combined to offer new insights.

"As we approach the Mars rover Curiosity's landing Sunday night, we're having a lot of fun seeing all the promotions - there are all kinds of videos, museum exhibits and road shows to help explain what the newest interplanetary explorer will do. Below is a great new one from the American Chemical Society. Curiosity is a well-equipped geologist, traveling to Mars with a suite of tools to bake and pulverize rock, but it's also a trained chemist, capable of detecting the ingredients necessary for life as we know it. It's the first explorer to be able to do this. "