[geocentrism] Re: navigation to the moon
- From: "Robert Bennett" <robert.bennett@xxxxxxx>
- To: <geocentrism@xxxxxxxxxxxxx>
- Date: Sat, 5 Feb 2005 15:47:28 -0500
Dan,
FYI:
The Van Allen belts are full of deadly radiation, and anyone
passing through them would be fried.
Needless to say this is a very simplistic statement. Yes, there is deadly
radiation in the Van Allen belts, but the nature of that radiation was known
to the Apollo engineers and they were able to make suitable preparations.
The principal danger of the Van Allen belts is high-energy protons, which
are not that difficult to shield against. And the Apollo navigators plotted
a course through the thinnest parts of the belts and arranged for the
spacecraft to pass through them quickly, limiting the exposure.
The Van Allen belts span only about forty degrees of earth's latitude --
twenty degrees above and below the magnetic equator. The diagrams of
Apollo's translunar trajectory printed in various press releases are not
entirely accurate. They tend to show only a two-dimensional version of the
actual trajectory. The actual trajectory was three-dimensional. The highly
technical reports of Apollo, accessible to but not generally understood by
the public, give the three-dimensional details of the translunar trajectory.
Each mission flew a slightly different trajectory in order to access its
landing site, but the orbital inclination of the translunar coast trajectory
was always in the neighborhood of 30°. Stated another way, the geometric
plane containing the translunar trajectory was inclined to the earth's
equator by about 30°. A spacecraft following that trajectory would bypass
all but the edges of the Van Allen belts.
This is not to dispute that passage through the Van Allen belts would be
dangerous. But NASA conducted a series of experiments designed to
investigate the nature of the Van Allen belts, culminating in the repeated
traversal of the Southern Atlantic Magnetic Anomaly (an intense, low-hanging
patch of Van Allen belt) by the Gemini 10 astronauts.
more at http://www.clavius.org/envrad.html
Robert
> -----Original Message-----
> From: geocentrism-bounce@xxxxxxxxxxxxx
> [mailto:geocentrism-bounce@xxxxxxxxxxxxx]On Behalf Of Dan
> Sent: Saturday, February 05, 2005 2:14 PM
> To: geocentrism@xxxxxxxxxxxxx
> Subject: [geocentrism] Re: navigation to the moon
>
>
> Question.
>
> How did they get through the Van Allen belt with the technology
> they had in the sixties without getting fried to death by the radiation?
>
> Dan.
>
>
>
>
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