العلم والتكنولوجيا: 2013

الأحد، مايو 26، 2013

الثلاثاء، أبريل 30، 2013

Believe it or not.. Ship can stand vertically in the water!!

Do you imagine that a ship that can stand vertically on the surface of the water while it is in the depth of the sea?
FLIP research vessel is the only ship in the world that have the ability to switch from the horizontal position to a vertical position while it is in the water! This information and more than shocking is that FLIP is not a small ship, but has a length of about 108 meters and weighs 700 tons!!

The Engineers البارعون designed to be able to move to the vertical upright 90 degrees so that the bow at the top up 17 meters (an increase of a building of 5 floors) while the tail submerged partially in the water along 91 meters, which means that the most likely of the ship is submerged under water which helps the stability of the ship and its resistance to waves.

The switching process takes about 28 minutes, where sea water pumping huge tanks in the rear of the ship, making it sink in water to become a ship in the vertica

l صدق أو لا تصدق . . سفينة تستطيع الوقوف رأسياً في الماء !!

هل تتخيلوا أنه يمكن لسفينة أن تقف رأسياً على سطح الماء بينما هي في عمق البحر؟
سفينة الأبحاث FLIP هي السفينة الوحيدة في العالم التي لها القدرة على التحول من الوضع الأفقي إلى الوضع الرأسي بينما هي في الماء! وما يزيد هذه المعلومة غرابة هو أن FLIP ليست سفينة صغيرة، بل يبلغ طولها حوالي 108 متر وتزن 700 طن!!

وقام المهندسون البارعون بتصميمها لتستطيع الانتقال إلى الوضع الرأسي باستقامة 90 درجة بحيث تكون مقدمة السفينة في الأعلى بارتفاع 17 متر (أي بارتفاع مبنى من 5 طوابق) بينما يكون ذيلها مغموراً جزئياً في الماء بطول 91 متر، أي أن الجزء الأغلب من السفينة يكون مغموراً تحت الماء وهو ما يساعد على ثبات السفينة ومقاومتها للأمواج.

تستغرق عملية التحول حوالي 28 دقيقة، يتم فيها ضخ مياه البحر لخزانات ضخمة في مؤخرة السفينة مما يجعلها تغطس في الماء لتصبح السفينة في الوضع الرأسي،

الأحد، مارس 24، 2013

علم مصر

Fw: 10 Amazing Staircases Around the World

منقول

The Web address: http://www.easylifeing.com/

Best Regards

M. E. A.

10 Amazing Staircases Around the World

1. Spiral Stair (Australia)

Fascinating spiral stairs at Garvan Institute in Sydney, Australia. 6.5 revs and five stories from top to bottom.

2. Spiral Staircase at the Vatican Museum (Italy)

The Vatican Museums spiral staircase is one of the most photographed in the world, and certainly one of the most beautiful. Designed by Giuseppe Momo in 1932, the broad steps are somewhere between a ramp and a staircase. The stairs are actually two separate helixes, one leading up and the other leading down, that twist together in a double helix formation. Little did theVatican Museum know in 1932 that this formation would come to represent life itself, with the discovery of the double helical DNA strand.

3. Loretto Chapel Staircase (USA)

The Loretto Chapel is a chapel in Santa Fe, New Mexico, known for its unusual spiral staircase that is an exceptional work of carpentry. The construction and builder of the staircase are considered a miracle by the Sisters of Loretto and many who visit it, because it had no central support (a support was added later). The resulting staircase is an impressive work of carpentry. It ascends twenty feet, making two complete revolutions up to the choir loft without the use of nails or apparent center support. It has been surmised that the central spiral of the staircase is narrow enough to serve as a central beam. Nonetheless there was no attachment unto any wall or pole in the original stairway. Instead of metal nails,the staircase was constructed using dowels or wooden pegs. The wood for the staircase cannot be found anywhere in the region. The stairs had 33 steps, the age of Jesus when he died. The mystery had never been satisfactorily solved as to who the carpenter was or where he got his lumber, since there were no reports of anyone seeing lumber delivered or even seeing the man come and go whilethe construction was being done. Since he left before the Mother Superior could pay him, the Sisters of Loretto offered a reward for the identity of the man, but it was never claimed.

Note: some historians claime that most of this story is a MYTH. (Thanks, drxwes)

4. Tulip Staircase at the Queen's House (England)

The elegant Tulip Stairs in the Queen's House are the first geometric self-supporting spiral stairs in Britain. Although called the 'Tulip Stairs,' it is thought that the stylized flowers in the wrought-iron balustrade are actually fleurs-de-lis, as this was the emblem of the Bourbon family of which Queen Henrietta Maria (wife of Charles I) was a member. The Tulip Stairs are also the location of the Rev R. W. Hardy's famous 'ghost' photograph taken on 19 June 1966, which when developed revealed what appear to be two or three shrouded figures onthe staircase.

5. Staircase at Lello Bookshop (Portugal)

This interesting grand staircase in Lello Bookshop in Portugal stands ominous and heavy. The steps are like two channels pouring and swirling to a single point. The side view gives you a closer idea of the immense curves and giddy sinking feeling to each step.

6. San Francisco's Tiled Steps - World's Longest Mosaic Stair (USA)

The 16th Avenue Tiled Steps, perhaps the world's longest mosaic staircase (163 steps, 82' high), was conceived and fabricated by Irish ceramicist Aileen Barr and San Francisco mosaic artist Colette Crutcher. Over a two and a half year period, a tireless group of neighbors raised funds and lobbied city government to make the project, unveiled in August 2005, a reality. Over 2000 handmade tiles and 75,000 fragments of tile, mirror and stained glass went into the finished piece, located at 16th Ave. and Moraga, in San Francisco.

7. Umschreibung - KPMG Building Munich (Germany)

This artistic staircase designed by Olafur Eliasson is called Umschreibung (Rewriting), and was completed in 2004. It's in the courtyard of the global accounting firm KPMG in Munich.

8. Stairs at the Longchamp Store (New York)

Constructed in 1¼" hot-rolled steel and taking six months to be built, the sta ir landscape weighs 55 tons and is an installation of ribbon-like forms that divide and converge to form a topography of walkways, landings and steps.

9. Vertigo Staircase at the QVB Building (Australia)

This image shows "The Grand Staircase" of Sydney's Grand Queen Victoria Building. This building, now affectionately known as the QVB, wasdesigned by George McRae and completed in 1898, replacing the original Sydney markets on the site. Built as a monument to the long reigning monarch, construction took place in dire times, as Sydney was in a severe recession. The elaborate Romanesque architecture was specially planned for the grand building so the Government could employ many out-of-work craftsmen – stonemasons, plasterers, and stained window artists – in a worthwhile project.

10. Bridge-stair at the Traversinertobel (Switzerland)

The bridge over the Traversinertobel, a side valley of the Via Mala, is the latest structure of this kind designed by engineer Jürg Conzett and his associate Rolf Bachofner . They solved the problem of connecting two different elevations over the gorge by creating a staircase.The staircase replaces a rope bridge for hikers that was wiped out by a rock slide. This suspended footbridge spans a distance of 56 metres, with a difference in height of 22 metres between the two ends