Environment & Energy

OKIsItJustMe

(21,875 posts)

44. More than just deminieralization of bones

Sun Jun 24, 2012, 01:33 AM

Jun 2012

There are a number of physiological problems related to extended time in space.

http://www.bbc.co.uk/sn/tvradio/programmes/spaceodyssey/healtheffects.shtml

[font face=Serif][font size=5]Space Odyssey: Voyage to the Planets[/font]
[font size=4]Space travel - not such an easy journey [/font]
[font size=3]Space travel is no walk in the park. If you think being an astronaut is fun and glamorous, you might want to read up on all the side effects.

Living and working in zero gravity plays havoc on all parts of your body, including your musclar, skeletal and vestibular (balance) systems. On top of that, NASA has identified 442 medical conditions that could require emergency attention during long-term missions. Now do you still want to be an astronaut?

…[/font][/font]

One of the questions that has to be asked is, “If we took a trip to Mars, would we make it there alive? and if we do, would we make it back to Earth?”

http://www.pbs.org/wgbh/nova/space/can-we-make-it-to-mars.html

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Polywell update from May - sounds like things are going really well! [View all] bananas Jun 2012 OP

Thanks! OKIsItJustMe Jun 2012 #1

I know, it's really exciting. bananas Jun 2012 #2

Its not like Polywell hasnt had its bumps in the road FogerRox Jun 2012 #4

Going to Mars might be nice, although humans seem not to be really well suited for space travel OKIsItJustMe Jun 2012 #8

Building the next generation of industrial infrastructure FogerRox Jun 2012 #24

�mass coronial ejections� are actually a relatively minor concern in my book OKIsItJustMe Jun 2012 #30

Ah yes, I forgot, demineralization of bones FogerRox Jun 2012 #39

More than just deminieralization of bones OKIsItJustMe Jun 2012 #44

Its probably worth it to build FogerRox Jun 2012 #45

Space Studies Institute wants to launch a gravity lab into LEO near the ISS bananas Jun 2012 #50

2001 aside, I am skeptical of centrifuges OKIsItJustMe Jun 2012 #51

State of the current contract FogerRox Jun 2012 #3

Thanks for that timeline. nt bananas Jun 2012 #9

They claimed a working prototype would be around 5 years from 4 years ago. joshcryer Jun 2012 #12

What is your definition of prototype, which you feel they have not met? OKIsItJustMe Jun 2012 #15

OK, hit me up in 3 years. joshcryer Jun 2012 #17

Well the New E-guns, followed by more DD runs and diagnostics FogerRox Jun 2012 #26

Couple of points FogerRox Jun 2012 #20

Which brings us to the definitions of words OKIsItJustMe Jun 2012 #25

Yes definitions FogerRox Jun 2012 #31

I think this is where I got the 5 year figure: joshcryer Jun 2012 #33

Remember, Bussard recommended a much more aggressive development schedule (for $200 million) OKIsItJustMe Jun 2012 #38

I'm familiar with that video. joshcryer Jun 2012 #40

Polywell Updates (4/11/2014) --> 13 year old does Fusion. Was On Letterman Show. The Polywell Guy Apr 2014 #57

Are they going poly well? phantom power Jun 2012 #5

Polywell is basically in the same category as thorium. joshcryer Jun 2012 #6

I believe you are fundamentally incorrect. OKIsItJustMe Jun 2012 #7

I believe you have a fundamental comprehension issue. joshcryer Jun 2012 #11

�Polywell is basically in the same category as thorium. � Mostly pointless dreaming.� OKIsItJustMe Jun 2012 #14

It is in the mostly pointless dreaming category. joshcryer Jun 2012 #16

Interesting� OKIsItJustMe Jun 2012 #18

DoD / MIC spend lots of money on a lot of projects that don't succeed. joshcryer Jun 2012 #19

Uh huh� OKIsItJustMe Jun 2012 #21

Uh huh... joshcryer Jun 2012 #23

Honestly, you need to examine your logic OKIsItJustMe Jun 2012 #37

That's my reason for dropping out of the "Polywell scene." joshcryer Jun 2012 #41

Whats up Josh? FogerRox Jun 2012 #22

I came to a realization when reading some of the detractors' comments. joshcryer Jun 2012 #27

For what it's worth OKIsItJustMe Jun 2012 #28

Recession is currently having more an impact on emissions than wind. joshcryer Jun 2012 #29

So, you propose to do nothing then? Is that it? OKIsItJustMe Jun 2012 #34

No, I'm say stop tooting our own horns until you got something to toot about. joshcryer Jun 2012 #35

The reason I belatedly posted the update in E/E ... bananas Jun 2012 #43

I don't share Roger's view of "fission is bad." There are lots of waste products from fission. joshcryer Jun 2012 #48

"Expecting our technological society to shut down isn�t a realistic scenario" NickB79 Jun 2012 #36

What I'm saying, ultimately, is that if I were to post a "thorium update"... joshcryer Jun 2012 #42

You really ought to say what you mean then OKIsItJustMe Jun 2012 #46

I'm aware of the aneutronic aspects of pB11. That doesn't change the fact that... joshcryer Jun 2012 #47

��no clue of how to make an alpha absorber�� OKIsItJustMe Jun 2012 #49

I think it can be done, I'm simply saying that if someone wanted to make a nuke... joshcryer Jun 2012 #52

Yup, off the shelf tech needs to roll out FogerRox Jun 2012 #32

New Jersey nuclear fusion firm ratchets up Iranian collaboration kristopher Jun 2012 #10

Eric Lerner? FogerRox Jun 2012 #13

The Polywell Blog, got some traffic from here The Polywell Guy Aug 2013 #53

Welcome to DU! bananas Aug 2013 #54

I'll have to extend a warm welcome to DU to you madokie Aug 2013 #55

Polywell Updates (2-3-2014) The Polywell Guy Feb 2014 #56

Polywell Updates (4/11/2014). 13 year old does Fusion. Was on Letterman. The Polywell Guy Apr 2014 #58