Завантаження...

H. Julian Allen - GPN-2000-001778
 

 

 

This photo was viewed 1 times and was downloaded in full size 0 times.

This photo was liked 0 times

Please login in order to see the source link
Description
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 missle re-entry shapes. Subsequently, applied research led to applications of the "blunt" shape to ballistic missles 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.
Date 31 December 1957(1957-12-31)
Source Great Images in NASA Description
Author NACA
Permission
(Reusing this file)
Public domain This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)

Shuttle.svg
Dialog-warning.svg
Warnings:
Shuttle.svg This image or video was catalogued by Ames Research Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: GPN-2000-001777 AND Alternate ID: A-22664.
This tag does not indicate the copyright status or the source of the attached work. A normal copyright tag and a source are still required. See Commons:Licensing for more information.



Licensing:
Public Domain

Comments

Only registered users can post comments. Please login



EXIF data:
File name h._julian_allen_-_gpn-2000-001778.jpg
Size, bytes 2906561
Mime type image/jpeg
The images at Free-Photos.biz come mainly from Wikimedia Commons or from our own production. The photos are either in the public domain, or licensed under free linceses: Free-Photos.biz license, GPL, Creative Commons or Free-Art license. Some very few other photos where uploaded to Free-Photos.biz by our users and released into the public domain or into free usage under another free license (like GPL etc.)

All photos in average size can be saved by everyone without registration (by right-clicking) - and all photos can be downloaded in full-size and without the big watermark by members (by left-clicking) (registration and free membership required).

While the copyright and licensing information supplied for each photo is believed to be accurate, Free-Photos.biz does not provide any warranty regarding the copyright status or correctness of licensing terms. If you decide to reuse the images from Free-Photos.biz, you should verify the copyright status of each image just as you would when obtaining images from other sources.


The use of depictions of living or deceased persons may be restricted in some jurisdictions by laws regarding personality rights. Such images are exhibited at Free-Photos.biz as works of art that serve higher artistic interests.

christianity portal