Tito planning Mars flyby!

Tito planning Mars flyby!

Author
Discussion

RealSquirrels

11,327 posts

193 months

Monday 25th February 2013
quotequote all
i always thought 'cosmic rays' was just a catch-all term for high energy electromagnetic radiation and also high energy particles that 'come from space'.

posters are right that water shielding wouldn't really effectively shield gamma rays but it'd shield pretty much everything else.

Eric Mc

122,144 posts

266 months

Monday 25th February 2013
quotequote all
Simpo Two said:
I thought cosmic rays were electrons but according to a programme on R4 recently they can be the nuclei of all sorts of atoms from hydrogen to uranium! Hence not gamma radiation nor any other EMS.
The programme I mentioned above - I expect.

Simpo Two

85,735 posts

266 months

Monday 25th February 2013
quotequote all
Well if all that is true, then interplanetary manned travel is pretty much ruled out for good.

Arse.

RealSquirrels

11,327 posts

193 months

Monday 25th February 2013
quotequote all
nah, there are plenty of technologically achievable solutions but they are constrained by the difficulty of getting things into orbit.

there's bulky, heavy shielding, as already mentioned
there are electromagnetic shielding solutions, though they would take a bit of power. ideally you'd probably want to use superconducting electromagnets for this. this technology is well understood, of course.
there is also the possibility of drugs to limit the effects of radiation exposure
also genetic engineering of course

what about 'suspended animation' too?

lots of options smile

davepoth

29,395 posts

200 months

Monday 25th February 2013
quotequote all
Simpo Two said:
Well if all that is true, then interplanetary manned travel is pretty much ruled out for good.

Arse.
Here's some science. Star Trek wins again.

http://iopscience.iop.org/0741-3335/50/12/124025

Caruso

7,444 posts

257 months

Monday 25th February 2013
quotequote all
I think it would be great to see this mission go ahead. I'd volunteer to be on the crew despite the risks.

Watchman

6,391 posts

246 months

Monday 25th February 2013
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PW said:
It sounds like there wouldn't be much room to take anything but supplies, so what would they actually do all day, every day for 500 days?
Easy to keep men occupied... and this is serious... sex. Women, not so.

Actually, have the ship partly powered by an exercise bike (just the luxuries) and you have a work-for-reward system.

You might need some aphrodisiacs (or just select the "right" stuff people) but with the right advertising (lots of guaranteed sex) you might be surprised at the volume of applicants.

OK... I'm just daydreaming.

annodomini2

6,874 posts

252 months

Monday 25th February 2013
quotequote all
Tito's trying to buy his way into the history books, by being the first man on Mars.

Don't blame him, but I doubt he personally has the cash.

Eric Mc

122,144 posts

266 months

Monday 25th February 2013
quotequote all
Bedazzled said:
Simpo Two said:
Well if all that is true, then interplanetary manned travel is pretty much ruled out for good.

Arse.
May not be, I'm just idly speculating as a layman. I was interested to see if I could calculate the fuel required, more than anything. Maybe they only need a few mm of shielding, that would change things; hopefully one of the science bods on here may be able to clarify.

Martin Rees was quite negative about the likelihood of human space travel when he was interviewed recently on Science Club, I found it quite depressing.
He's always been a bit of a moaning minnie. Most astronomers are not great fans of manned space exploration anyway.
Luckily, it's not astronomers they need for exploring.

2fast748

1,102 posts

196 months

Thursday 28th February 2013
quotequote all
So what do we think of the plans?

501 days, probable married couple, fly-by rather than landing, January 2018 launch date?

I think it's great/insane in equal measures.


annodomini2

6,874 posts

252 months

Thursday 28th February 2013
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No risk, no reward!

RealSquirrels

11,327 posts

193 months

Thursday 28th February 2013
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i need to get married quickly.

Caruso

7,444 posts

257 months

Thursday 28th February 2013
quotequote all
Caruso said:
I'd volunteer to be on the crew despite the risks.
I retract that statement if I have to take the wife!

Einion Yrth

19,575 posts

245 months

Thursday 28th February 2013
quotequote all
RealSquirrels said:
i need to get married quickly.
He wants people past child-rearing age, presumably 'cause they'll care less about getting their 'nads heavily irradiated.

RealSquirrels

11,327 posts

193 months

Thursday 28th February 2013
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the technique to recycle urine into water is called 'distillation'

Eric Mc

122,144 posts

266 months

Thursday 28th February 2013
quotequote all
If someone wants to spend their own money doing such a thing - who are we to stop them. And if they wish others to support them financially - who are we to stop them supporting such a mission either.

I don't care anymore WHY someone wants to embark on an enterprise like this. I applaud them for having a go - and hope it succeeds.

Simpo Two

85,735 posts

266 months

Thursday 28th February 2013
quotequote all
PW said:
I was disappointed to read some of the comments from the announcement "Inspiration Mars will be 'a purely American mission'" ... "When asked if the project was at all spurred by a desire to beat China to Mars, Tito replied: 'Wouldn't I want to do that? Wouldn't I want America to do that? Wouldn't you want America to do that?'".

I find that to be such a ridiculously outdated way of thinking. The quicker everyone stops thinking in terms of "us vs them" we might actually achieve something greater as a species.
But it gets things done. Remember it was only the 'space race' which got man on the moon. Take away competition and much of your reason for doing otherwise pointless things is gone.

Is competition a ridiculously outdated way of thinking? Think of football - your way, both teams would have a chat before kick-off and take it in polite turns and each score 1,000 goals. It would be much easier and nobody would fall over and get muddy, but it would have no point. Man is a competitive animal.

Simpo Two

85,735 posts

266 months

Thursday 28th February 2013
quotequote all
There will always be countries, nationalism, disharmony, competition, wars, hate, envy, fear and all the rest of the condition that makes us humans and not termites. Today is not necessarily better than yesterday, its just where we happen to be. 'Old fashioned' is not always wrong.

davepoth

29,395 posts

200 months

Friday 1st March 2013
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Bedazzled said:
"the approx $1-2bn required" - Apollo cost about $100bn in today's money, $1bn budget makes me think Beagle 2 / lost in space. Then again, I didn't think Curiosity would work.
That was from a standing start. The sums are based on buying pretty much everything off the shelf. That does drop the price an awful lot.

Eric Mc

122,144 posts

266 months

Friday 1st March 2013
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Look on it as perhaps the beginning of the "lone yachtsman" era of manned spaceflight.

300 years ago, only state backed expeditions had the resources and technology which enabled attempts to sail around the world. By the end of the 1800s, it was becoming possible for individuals to attempt the same feats using resources generated by themselves.

By the 1960s, it was well within the grasp of individuals to have a go.