Sary:H. Julian Allen with Blunt Body Theory - A-22664.jpg
Haben'ny topi-maso: 763 × 600 teboka. Habe hafa: 306 × 240 teboka | 611 × 480 teboka | 978 × 768 teboka | 1 280 × 1 006 teboka | 2 560 × 2 011 teboka | 3 155 × 2 479 teboka
Rakitra niaviana (3 155 × 2 479 teboka, haben'ilay rakitra : 1,93 Mio, endrika MIME : image/jpeg)
Ambangovangony
| Visavisa |
English: H. Julian Allen is best known for his "Blunt Body Theory" of aerodynamics, a design technique for alleviating the severe re-entry heating problem which was then delaying the development of ballistic missiles. His findings revolutionized the fundamental design of ballistic missile re-entry shapes. Subsequently, applied research led to applications of the "blunt" shape to ballistic missiles and spacecraft which were intended to re-enter the Earth's atmosphere. This application led to the design of ablative heat shields that protected the Mercury, Gemini and Apollo astronauts as their space capsules re-entered the Earth's atmosphere.
"Harvey" Allen as he was called by most, was not only a brilliant scientist and aeronautical engineer but was also admired for his kindness, thoughtfulness and sense of humor. Among his many other accomplishments, Harvey Allen served as Center Director of the NASA Ames Research Center from 1965 to 1969. He died of a heart attack on January 29, 1977 at the age of 66. |
| Daty | |
| Loharano | Ames Imaging Library System : Accueil - info - photo |
| Mpamorona azy | NACA |
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H. Julian Allen with Blunt Body Theory - GPN-2000-001777.jpg:  |
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Cette image ou vidéo a été cataloguée par l' Ames Research Center de la National Aeronautics and Space Administration (NASA) des États-Unis sous Photo ID : A-22664.Ce bandeau n’indique rien sur le statut de l’œuvre au regard du droit d'auteur. Un bandeau de droit d’auteur est requis. Voir Commons:À propos des licences pour plus d’informations. Autres langues :
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Cette image a été retouchée, ce qui signifie qu'elle a été modifiée par ordinateur et est différente de l'image d'origine. Liste des modifications : Remove hair from center of image. Modifications effectuées par Revent.
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Ce fichier provient de la NASA. Sauf exception, les documents créés par la NASA ne sont pas soumis à copyright. Pour plus d'informations, voir la politique de copyright de la NASA. |  |
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Tantara ny rakitra
Tsindrio eo amin'ny daty/ora iray mba hijery ny toetra n'ilay rakitra tamin'io fotoana io.
| Daty sy ora | saritapaka | Habe | Mpikambana | resaka | |
|---|---|---|---|---|---|
| ankehitriny | 17 Oktobra 2015 à 08:38 | | 3 155 × 2 479 (1,93 Mio) | Revent | Clone out another defect (looks like a pinhole in the film) |
| 17 Oktobra 2015 à 08:32 |  | 3 155 × 2 479 (1,88 Mio) | Revent | Clone out distracting hair on (lens or negative, not sure) from the center of the image. | |
| 17 Oktobra 2015 à 07:55 |  | 3 155 × 2 479 (2,37 Mio) | Revent | =={{int:filedesc}}== {{Information |Description={{en|1=H. Julian Allen is best known for his "Blunt Body Theory" of aerodynamics, a design technique for alleviating the severe re-entry heating problem which was then delaying the development of ballisti... |
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