[SKRIVA] Niel Armstrong talar om månlandningen
- From: Ahrvid Engholm <ahrvid@xxxxxxxxxxx>
- To: <skriva@xxxxxxxxxxxxx>
- Date: Tue, 18 Jan 2011 17:06:30 +0100
Den förste människan på månen, Niel Armstrong, har alltid hållit en relativt
låg profil. Här skriver han dock ett brev om månlandningen och vandringarna på
månens yta:
http://www.npr.org/blogs/krulwich/2010/12/08/131910930/neil-armstrong-talks-about-the-first-moon-walk
Utdrag:
"It is true that we were cautious in our planning. There were many
uncertainties about how well our Lunar module systems and our Pressure suit and
backpack would match the engineering predictions in the hostile lunar
environment. We were operating in a near perfect vacuum with the temperature
well above 200 degrees Fahrenheit with the local gravity only one sixth that of
Earth. That combination cannot be duplicated here on Earth, but we tried as
best we could to test our equipment for those conditions. For example, because
normal air conditioning is inadequate for lunar conditions, we were required to
use cold water to cool the interior of our suits. We did not have any data to
tell us how long the small water tank in our backpacks would suffice. NASA
officials limited our surface working time to 2 and 3/4 hours on that first
surface exploration to assure that we would not expire of hyperthermia. After
returning to and repressurizing the Lunar Module, we were able to drain and
measure the remaining water in the backpacks to confirm the predicted.
There was great uncertainty about how well we would be able to walk in our
cumbersome pressurized suit. My colleague demonstrated a variety of techniques
in view of the television camera that I had installed in a position
predetermined to be in the optimum spot for coverage of all of our activities.
Preflight planners wanted us to stay in TV range so that they could learn from
our results how they could best plan for future missions. I candidly admit
that I knowingly and deliberately left the planned working area out of TV
coverage to examine and photograph the interior crater walls for possible
bedrock exposure or other useful information. I felt the potential gain was
worth the risk.
It is true that we would have liked to stay on the surface longer and traveled
further away from the Lunar Module and the television camera. But we had a
number of experiments to install, samples to document and collect, and
photographs to take. The time available was fully allocated and we were
working diligently to complete our assigned tasks. The Lunar Laser Ranging
Retroreflector we installed is still in use today in a variety of scientific
experiments."
--Ahrvid
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