SteveCNC wrote:
…being a pessimist is foolish..
Pessimists may be lonely, but I’m not so sure they’re foolish, or even unnecessary to the creation process. In fact, I wish there were more of us, particularly in the midst of those who believe the Moon landings were faked, or that UFOs and aliens are abducting people.
After all, out of conflict, emerges truth. Would there be any truth emerging in science were it not for skeptics? Galileo comes to mind.
Some Nigerians might choose an honest living if there were more email scam skeptics. We might also finally see the last of John Edwards seances or Kevin get-rich-at-home Trudeau infomercials.
On the other hand, I’m eager to learn that parents, such as you, are encouraging kids to dream, and to combine science, math, and art into beautiful, elegant, novel solutions. Our schools are doing a terrible job at inspiring kids, at all levels.
Rockett wrote:
What is SO HARD about this idea? Engineering wise it should cause no ill effects on the crew.
First of all, I really enjoyed your graphic. Thanks for sharing it. I admit it would be exciting to be part of that project. I could even imagine myself volunteering to be on the crew. But then, I thought the Grumman luner lander was beautiful too. Seriously. It bucked Hollywood, and conventional thinking, and it worked. Six times. Beautiful.
But you ask what's so hard: It's not the single concept, but the combination of obstacles to make it real. As aerospace engineers are fond of pointing out, you don’t go into space on PowerPoint slides. If you won’t buy into the engineering obstacle, perhaps you will consider the economic obstacle that governments and wealthy individuals won’t buy a fleet of Mars spinners.
There can't be just one. There will have to be a fleet.
Consider this: There was a reason Columbus chose three ships to cross the Atlantic. It was the same reason the pilgrims chose, wisely it turned out, to voyage to the New World in a convoy of three ships. It took ten versions of the Apollo stack before the one that actually landed. The excellent Mars rovers were sent in pairs for the same reason.
So when you’re buying a Mars machine, you’re actually building, at a minimum, three:
1) Mars 1: Testing in Earth and lunar orbit
2) Mars 1a: Refit Mars 1 for testing around Mars in automated robotic mode, with an automated robotic lander and return vehicle (obviously bringing home samples along the way). The mission will take years, so Earth has plenty of time to build the remaining two vehicles.
3) Mars 1b, 2, and 3: Refit Mars 1a for the real deal and call it Mars1b. Mars 2 and Mars 3 will voyage with humans to Mars. Mars 1b, possibly 10 years old with a lot of miles on its odometer now, remains home "in the barn" or in a free-return orbit for emergency use in the event the Unicorn Drive blows up on Mars 2 or 3. Unlike Apollo, there will always be a backup for modern space travel. Mars 2 and 3 will serve as backups for each other, and plunder each other as necessary for spare parts.
4) Legislators will look at the cost of three vehicles and be voted out of their precious offices for even considering participation in the program because samples of Mars will have been returned by robots a decade earlier, from which not a single taxpayer will have ever seen a single dime. Evidently, tax payers don't appreciate dirt, no matter what the origin.
But Mars is unique. It's close. I'm not saying it can't be done. I'm saying it musn't be done. The money is better spent elsewhere. Ok. I take it back. I'm saying it can't be done so it doesn't matter if we musn't.