Newbie - A couple NASA links

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PghPoPo:
I'm new a newbie. I apologize in advance if I'm covering old items or in the wrong section. There's a lot of information to absorb here and around the Internet. I guess I could best be described as a seeker of truth, whatever that may be. I'm still getting up to speed on other's research, as well as doing my own.

I came across this NASA website yesterday. I'm not claiming it's anything Earth shattering. I did think that maybe other people might have some comments or be better equipped to add insight.

http://image.gsfc.nasa.gov/poetry/

The bottom three answers from the Q&A are "Not Found" via the inks. However, I pulled the following links via the waybackmachine for 10/15/2003:

http://web.archive.org/web/20031015215022/http://radbelts.gsfc.nasa.gov/outreach/outreach.html
http://web.archive.org/web/20031218232359/http://radbelts.gsfc.nasa.gov/outreach/Radbelts0.html
http://web.archive.org/web/20040708102535/http://radbelts.gsfc.nasa.gov/outreach/Radbelts4.html

From the third link above, in regard to the Van Allen radiation belts:

"In reality, the Apollo astronauts might have experienced minor radiation sickness if they had been in their spacesuits on a spacewalk, but no spacewalk was ever scheduled for this very reason. The metal shielding provided by the Apollo space capsule walls was more than enough to protect the astronauts from all but the most energetic, and rare, particles."

It just seems odd how the belts are no big deal in 2003 yet now they are an issue to deal with.

On a separate topic, the website has the following:

http://image.gsfc.nasa.gov/movie/

The second bullet point "IMAGE simulation movie" has an active movie and explanation link:

http://image.gsfc.nasa.gov/movie/sim_movie.html
http://image.gsfc.nasa.gov/movie/

I'm looking at this as a layman. I think what it is showing is nine separate models concerning an event - solar magnetic cloud - that was to take place on October 18-19, 1995. I believe it's a projection rather than the actual event.

The first panel shows the orbit. I think it's interesting how Antarctica is modeled in the bottom six simulations. It seems to be a big hole.

I'm not proposing anything other than discussion. I still haven't figured out exactly what each simulation is supposed to represent. I apologize if I'm covering old ground.

Bullwinkle:

--- Quote from: PghPoPo on May 26, 2016, 11:38:58 AM ---
I came across this NASA website yesterday. I'm not claiming it's anything Earth shattering. I did think that maybe other people might have some comments or be better equipped to add insight.

http://image.gsfc.nasa.gov/poetry/

--- End quote ---

I didn't click on it.

What did you learn from the site and what question
do you have?

Blue_Moon:

--- Quote from: PghPoPo on May 26, 2016, 11:38:58 AM ---From the third link above, in regard to the Van Allen radiation belts:

"In reality, the Apollo astronauts might have experienced minor radiation sickness if they had been in their spacesuits on a spacewalk, but no spacewalk was ever scheduled for this very reason. The metal shielding provided by the Apollo space capsule walls was more than enough to protect the astronauts from all but the most energetic, and rare, particles."

It just seems odd how the belts are no big deal in 2003 yet now they are an issue to deal with.

--- End quote ---
About the Van Allen belts, the translunar trajectories were inclined, avoiding the brunt of the radiation. This was a clever trick for lunar missions, but we can't really use it for interplanetary missions, and we'll have to rely on shielding.
http://www.braeunig.us/apollo/apollo11-TLI.htm
http://www.braeunig.us/apollo/VABraddose.htm

Username:

--- Quote from: PghPoPo on May 26, 2016, 11:38:58 AM ---I'm new a newbie. I apologize in advance if I'm covering old items or in the wrong section. There's a lot of information to absorb here and around the Internet. I guess I could best be described as a seeker of truth, whatever that may be. I'm still getting up to speed on other's research, as well as doing my own.

I came across this NASA website yesterday. I'm not claiming it's anything Earth shattering. I did think that maybe other people might have some comments or be better equipped to add insight.

http://image.gsfc.nasa.gov/poetry/

The bottom three answers from the Q&A are "Not Found" via the inks. However, I pulled the following links via the waybackmachine for 10/15/2003:

http://web.archive.org/web/20031015215022/http://radbelts.gsfc.nasa.gov/outreach/outreach.html
http://web.archive.org/web/20031218232359/http://radbelts.gsfc.nasa.gov/outreach/Radbelts0.html
http://web.archive.org/web/20040708102535/http://radbelts.gsfc.nasa.gov/outreach/Radbelts4.html

From the third link above, in regard to the Van Allen radiation belts:

"In reality, the Apollo astronauts might have experienced minor radiation sickness if they had been in their spacesuits on a spacewalk, but no spacewalk was ever scheduled for this very reason. The metal shielding provided by the Apollo space capsule walls was more than enough to protect the astronauts from all but the most energetic, and rare, particles."

It just seems odd how the belts are no big deal in 2003 yet now they are an issue to deal with.

On a separate topic, the website has the following:

http://image.gsfc.nasa.gov/movie/

The second bullet point "IMAGE simulation movie" has an active movie and explanation link:

http://image.gsfc.nasa.gov/movie/sim_movie.html
http://image.gsfc.nasa.gov/movie/

I'm looking at this as a layman. I think what it is showing is nine separate models concerning an event - solar magnetic cloud - that was to take place on October 18-19, 1995. I believe it's a projection rather than the actual event.

The first panel shows the orbit. I think it's interesting how Antarctica is modeled in the bottom six simulations. It seems to be a big hole.

I'm not proposing anything other than discussion. I still haven't figured out exactly what each simulation is supposed to represent. I apologize if I'm covering old ground.

 

 

--- End quote ---

I don't go far down the NASA side of things, but thanks for posting here!

Round and Proud:

--- Quote from: Blue_Moon on May 26, 2016, 06:41:22 PM ---
--- Quote from: PghPoPo on May 26, 2016, 11:38:58 AM ---From the third link above, in regard to the Van Allen radiation belts:

"In reality, the Apollo astronauts might have experienced minor radiation sickness if they had been in their spacesuits on a spacewalk, but no spacewalk was ever scheduled for this very reason. The metal shielding provided by the Apollo space capsule walls was more than enough to protect the astronauts from all but the most energetic, and rare, particles."

It just seems odd how the belts are no big deal in 2003 yet now they are an issue to deal with.

--- End quote ---
About the Van Allen belts, the translunar trajectories were inclined, avoiding the brunt of the radiation. This was a clever trick for lunar missions, but we can't really use it for interplanetary missions, and we'll have to rely on shielding.
http://www.braeunig.us/apollo/apollo11-TLI.htm
http://www.braeunig.us/apollo/VABraddose.htm

--- End quote ---

The Van Allen Belts are mostly Alpha particles which are not very energetic. As I recall a few sheets of paper is enough to stop most of the exposure.

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