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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.
|William Hayward Pickering|
Dr. William H. Pickering, JPL/NASA Photo
24 December 1910|
Wellington, New Zealand
|Died||15 March 2004(aged 93)|
|Institutions||Jet Propulsion Laboratory|
|Notable awards||IEEE Edison Medal
Delmer S. Fahrney Medal (1976)
William Hayward Pickering, ONZ, KBE (24 December 1910 – 15 March 2004) was a New Zealand born rocket scientist who headed Pasadena, California's Jet Propulsion Laboratory (JPL) for 22 years, retiring in 1976. He was a senior NASA luminary and pioneered the exploration of space.
Born in Wellington, New Zealand, Pickering attended Havelock School, Marlborough, and Wellington College. After spending one year at Canterbury University College he completed his bachelor's degree at the California Institute of Technology and completed a PhD in physics in 1936. His specialty was in electrical engineering and he concentrated on what is now telemetry.
In 1958 the lab's projects were transferred to the National Aeronautics and Space Administration (NASA) and Pickering's team concentrated on NASA's unmanned space-flight program. JPL, under Pickering's direction flew further Explorer 3 and Pioneer missions as well as the Ranger and Surveyor missions to the moon and the several Mariner flybys of Venus and Mars.
Explorer III discovered the radiation field round the earth that is now known as the Van Allen radiation belt. Explorer 1 orbited for 10 years and was the forerunner of a number of successful JPL earth and deep-space satellites. William Hayward Pickering is not to be confused with William Henry Pickering, an astronomer from an earlier era.
Pickering's main attributes, beyond his scholarly achievements, were his team organisational and project management skills.
Bill Pickering, keen to support authentic science in his home country, was Patron of New Zealand's only school-based research group, the Nexus Research Group, from 1999 until his death in 2004. Between 1977 and his death in 2004, Pickering also served as Patron of the New Zealand Spaceflight Association; a non-profit organisation which exists to promote an informed approach to astronautics and related sciences.
In 2009 to mark the International Year of Astronomy, William Hayward Pickering was selected along with cosmologist Beatrice Tinsley to have their names bestowed on peaks in the Kepler Mountains of New Zealand's Fiordland National Park. In December 2010 the New Zealand Geographic Board officially gazetted Mount Pickering as an official New Zealand place name. (RASNZ) 
|Wikimedia Commons has media related to: William H. Pickering|