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The sound barrier was broken, 1947 to be exact, and that is exactly 50 years after the first powered heavier than air flight. But to put that in perspective that is only a 700 mph difference.
Since Apollo exceeded 25,000 mph (about 40 years later), what would be a comparable advancement curve one should have expected now 40-some years after that?
As NASA is working on plans to send humans back to the Moon in the next decade, researchers are working to learn the best ways to work with the lunar regolith. Future colonists could mine minerals and even oxygen out of the lunar soil. Since real lunar regolith is hard to come by, you can purchase lunar regolith simulant, made here on Earth.
We can do all that. Hydroponics for food, crater water for oxygen and propellant, etc.
If NASA sends a 3D printer that could use processed regolith as the medium it could speed things up considerably. You can make anything out of metal or plastic with these guys.
Originally posted by samkent
reply to post by HossBog
We can do all that. Hydroponics for food, crater water for oxygen and propellant, etc.
Where do you get the nutrients for the hydroponics? The Lunar Garden store?
If NASA sends a 3D printer that could use processed regolith as the medium it could speed things up considerably. You can make anything out of metal or plastic with these guys.
Even the metal items produced is of low strength. Some time’s you need steel. Some time’s you need copper. Some time’s you need case hardened. These printers cannot make anywhere near the quality and variety of parts needed for even the most basic products.
Plus did you ever notice that ore processing requires specific facilities for each type of finished material?
A steel plant doesn’t make copper wire. An aluminum plant doesn’t produce rolled steel. Also each process requires additional materials to add to the process. Steel needs iron, carbon, manganese, chromium, vanadium, tungsten. How do you produce those?
I'm sorry but our way of life only works on our planet.
During the joint Senate-NASA presentation in September 2011, it was stated that the SLS program has a projected development cost of $18 billion through 2017, with $10B for the SLS rocket, $6B for the Orion Multi-Purpose Crew Vehicle and $2B for upgrades to the launch pad and other facilities at Kennedy Space Center.[12] An unofficial NASA document estimates the cost of the program through 2025 will total at least $41B for four 70 metric ton launches (1 unmanned in 2017, 3 manned starting in 2021). The 130 metric ton version should not be ready earlier than 2030.
Where do you get the nutrients for the hydroponics? The Lunar Garden store? If NASA sends a 3D printer that could use processed regolith as the medium it could speed things up considerably. You can make anything out of metal or plastic with these guys. Even the metal items produced is of low strength. Some time’s you need steel. Some time’s you need copper. Some time’s you need case hardened. These printers cannot make anywhere near the quality and variety of parts needed for even the most basic products. Plus did you ever notice that ore processing requires specific facilities for each type of finished material? A steel plant doesn’t make copper wire. An aluminum plant doesn’t produce rolled steel. Also each process requires additional materials to add to the process. Steel needs iron, carbon, manganese, chromium, vanadium, tungsten. How do you produce those?
Originally posted by Maslo
reply to post by cloudyday
SLS rocket is often looked down upon by advocates of manned spaceflight as a huge waste of money, too. We already have three rockets (Atlas V, Falcon and Delta) being chronically underused, with potential to make dozens of launches a year (hundreds of tons a year) and be upgraded to 50 tons capacity with only marginal cost increase. We dont need the jobs program that is SLS for manned space program.edit on 10/12/11 by Maslo because: (no reason given)
Originally posted by Maslo
reply to post by Illustronic
Well, just like advances in aviation are not only about flight speed increase, advances in spaceflight must not be only about orbital speed increase.
Originally posted by Illustronic
reply to post by PerfectPerception
Total Sci-Fi, that doesn't belong in this forum.
Please exit.