Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.sai.msu.su/apod/rockets.html
Дата изменения: Unknown Дата индексирования: Mon Oct 1 21:45:43 2012 Кодировка: Поисковые слова: п п п п п п п п п п п п р п |
![]() |
Astronomy Picture of the Day |
APOD: 2004 December 12 - Atlantis to Orbit
Explanation:
Birds
don't fly this high.
Airplanes don't go this fast.
The Statue of Liberty
weighs less.
No species
other than human can even comprehend what is going on,
nor could any human just a millennium ago.
The launch of a
rocket bound for space is an event that
inspires awe
and challenges description.
Pictured above, the
Space Shuttle Atlantis lifted off to visit the
International Space Station
during the early morning hours of 2001 July 12.
>From a standing start, the two million kilogram
rocket ship left to circle the
Earth where the
outside air is too thin to breathe and where there is
little
noticeable onboard gravity.
Rockets bound for space are now
launched from somewhere on Earth
about once a week.
APOD: 2001 May 25 - Saturn The Giant
Explanation:
Forty years ago today (May 25, 1961) U.S. president
John
Kennedy announced the goal of landing Americans on the Moon
by the end of the decade.
Kennedy's ambitious
speech triggered
a nearly unprecedented
peacetime technological mobilization and one result was the
Saturn V moon
rocket.
Its development directed by rocket pioneer Wernher Von Braun,
the three stage
Saturn
V stood over 36 stories tall.
It had a cluster of five
first
stage engines
fueled by
liquid oxygen and kerosene which together were
capable of producing 7.5 million pounds of thrust.
Giant Saturn V rockets
ultimately hurled nine
Apollo missions to the
Moon and back again with six landing on
the
lunar surface.
The first landing, by
Apollo 11, occurred on July 20, 1969 achieving
Kennedy's goal.
Bathed in light, this
Saturn V
awaits an April 11, 1970 launch on the
third lunar landing mission, Apollo 13.
APOD: 2001 March 16 - Rockets and Robert Goddard
Explanation:
Robert H. Goddard, one
of the founding fathers of modern rocketry, was
born in Worcester Massachusetts in 1882.
As a 16 year old, Goddard read H.G. Wells' science fiction classic
"War Of The Worlds" and dreamed of space flight.
By 1926 he had designed, built, and flown
the
world's first liquid fuel rocket.
Launched
75 years ago today
from his aunt Effie's farm in
Auburn Massachusetts, the rocket, dubbed "Nell", rose to an
altitude of 41 feet in a flight that lasted about 2 1/2 seconds.
Pictured
here Goddard stands next to the 10 foot tall rocket, holding
the launch stand.
To achieve a stable
flight
without the need for fins
the rocket's heavy
motor is located
at the top, fed by lines from
liquid oxygen and gasoline fuel tanks at the bottom.
During his career Goddard was ridiculed by the press
for suggesting that rockets could be flown to
the Moon, but he kept up his experiments supported in part by the
Smithsonian Institution and championed by
Charles
Lindbergh.
Widely recognized as a gifted experimenter and engineering genius, his
rockets
were many years ahead of their time.
Goddard was awarded over 200 patents in rocket technology,
most of them after his death in 1945.
A liquid fuel rocket constructed on principles developed by Goddard
landed humans on the Moon in 1969.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings, and
Disclaimers
NASA Official: Jay Norris.
Specific rights apply.
A service of:
EUD at
NASA /
GSFC
& Michigan Tech. U.