HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 3/3
Cadman-LT
User Rank
Platinum
Re: Sci-Fi solutions
Cadman-LT   7/16/2013 1:03:46 PM
NO RATINGS
naperlou, I think you are wrong. Further from the Sun, really. I just don't buy that. Cosmic raditaion is out there, everywhere in space. Shielding is not just important, it is a necessity for people to survive long periods of time in space. You are assuming that all of the radiation comes from the Sun however, which I believe to be false(and is). Those people who are brave enough to stay in space for those periods of time know the consequences. Everything that can be done to minimalize that exposure to radiation should be done.

Cadman-LT
User Rank
Platinum
Re: Sci-Fi solutions
Cadman-LT   7/16/2013 12:51:33 PM
NO RATINGS
Ann, forgot to mention great article. Love reading your stuff.

Cadman-LT
User Rank
Platinum
Re: Sci-Fi solutions
Cadman-LT   7/16/2013 12:50:03 PM
NO RATINGS
Warren, I agree. It has always been at the top of the list of problems facing astronauts as much as I can recall. Having to hide in case of a solar flare, etc. They need protection if they ever want to make it to Mars. The old astronauts used to say when they closed their eyes they saw little sparks of light....radiation. Not good. This is a step in the right direction to protecting those brave enough to go out there. naperlou, the case I metioned earlier where they had to hide from a solar flare...if I recall correctly was on the ISS.

Ann R. Thryft
User Rank
Blogger
Re: Sci-Fi solutions
Ann R. Thryft   7/16/2013 12:46:08 PM
NO RATINGS
The main source of radiation in space that we must protect astronauts against is cosmic rays, specifically galactic cosmic rays (GCR). As we mention in the article, these are far more damaging to humans than any radiation we experience on Earth, from any source. The lack of enough protection for astronauts on extended voyages is often mentioned as one of the main reasons we haven't sent people to Mars yet.

naperlou
User Rank
Blogger
Re: Sci-Fi solutions
naperlou   7/16/2013 10:39:40 AM
NO RATINGS
Warren, I am not sure it is as bad as you think.  As you get further out from the source the density of the radiation decreases.  Exploration further from the sun should be safer, assuming that the sun is the main source of the radiation.  We have had astronaughts in space for some time now and the ISS allows us to have people in orbit for longer periods of time.  Shielding is important, but it's need should not deter us.

warren@fourward.com
User Rank
Platinum
Sci-Fi solutions
warren@fourward.com   7/16/2013 8:50:03 AM
NO RATINGS
As a kid, and as an adult, I loved and love science fiction.  I think it had a lot to do with me becoming an engineer.

But I was always troubled by the scientific inconsistencies.

One book had a moon landing using parachutes.  I knew better than that as a 10 year old.  And there are many more issues raised.

But the radiation thing has bothered me a lot.  I am a big fan of a trip to Mars, but I don't want corpses arriving there or here.  It should not be a suicide mission, although I suspect there would still be plenty of volunteers!

The shielding issue is major.  Not only is the "Moon a harsh mistress" but all of "empty" space is a dangerous mine field.  Good luck solving all those problems!

<<  <  Page 3/3


Partner Zone
Latest Analysis
Tesla Motors Inc. took another big step into the battery market last night, officially unveiling a strategy that would enable it to sell batteries into home and grid storage applications.
At some point in the distant future, we may all be driving electric cars. Until then, however, the debate over their ongoing viability rages on.
Machine vision and video streaming systems are used for a variety of purposes, and each has applications for which it is best suited. This denotes that there are differences between them, and these differences can be categorized as the type of lenses used, the resolution of imaging elements, and the underlying software used to interpret the data.
Comic books long have appealed to kids as a fun way to introduce reading and art without being overly didactic. Now a software engineer and project manager from Oklahoma thinks the medium can be used to get them interested in STEM careers.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
More:Blogs|News
Design News Webinar Series
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 4 - 8, Designing Low Power Systems using Battery and Energy Harvesting Energy Sources
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service