The media now has a storm to serve as cover on this issue.
Lies about Gen. Ham.
When Obama called the Seals, they got bin Laden. When the Seals called Obama, they died.
|Media Benghazi coverup|
|Media Benghazi coverup|
...it is not clear whether the support of permanent bases would be strong, costly and would last several centuries or if it would be possible to settle the red planet and to establish self-sufficient bases in few years.
...would [it] be possible to settle the red planet and to establish self-sufficient bases in few years[?]Which is addressed in the paper in this way...
There are basically two different strategies. The first one is to use high-technology devices to build the main infrastructures, grow rapidly and achieve partial autonomy, but relying on complex tools that could not be repaired or rebuilt on Mars. The second is to use more simple tools, which would not allow fast growing, but would make it possible to repair or to rebuild objects using local resources.I intend to show this is a false choice and that there is a third way. Mars colonists will need to do all three.
A greenhouse also requires a lot of power for growing plants. The sun can provide part of it, but since it is half as strong as it is on Earth, a complementary and artificial illumination will be deployed to make farming efficient. LEDs or other lighting devices can be used for that purpose.
Long range pressurized rovers will make it possible to go far and explore the surface in an efficient way.The assumption here is these have to be high tech. equipment from earth. Pressurized rovers actually make it more difficult to explore compared to unpressurized since you are less likely to take the time to go through an airlock for marginal possibilities. Instead, the rover can be two low tech parts. A simple electric tractor that does nothing but provide a fifth wheel hitch. This pulls an even simpler trailer that can have many adjustable configurations loaded on it as needed. Both of these could be easy for the colonists to build ISRU.
New structures will be built for storage, habitation, industrial development, research, etc. A bulldozer for clearing and a crane for carrying would probably be chosen to make it easy and fast.Of course they will need bulldozers. But of a design they can build ISRU themselves. They don't need a crane immediately, although it is a simpler thing to build. The dozer itself is a sort of crane.
In order to extract water or to get access to underground mines, a drill is required. Then, if large quantities have to be carried, a truck is also needed.
Automation is a key issue for the maintenance of the base.
[Paraphased] There is a risk of losing tools and their corresponding capability.
[Paraphased] Tools wear out.
How many persons are required to develop and maintain a modern industry?
What industrial processes? How much power? How much time? These important questions have to be addressed by engineers to assess the sustainability of a modern Martian base and to determine the feasibility of the fast development scenario.
All engines are complex and can not be easily repaired.
...it is doubtful that any vehicle could be built on Mars without a modern industry.
The simplest vehicle is the bicycle, eventually with three or four wheels. It is perhaps possible to build one using in situ resources and by means of simple industrial processes. However, such a vehicle can not help in transporting heavy loads and moving far and fast.
However, some electronic devices are part of the life support system, the spacesuit, the rover, etc. They play an important role and they can not be replaced by other tools.
...it is [not] possible to avoid the use of high-tech devices.
Access to water; Food production; Gathering ores; Not enough energy for specific needs.
the quality of spare parts might be uncertain if the metallurgic process is not driven by high tech sensors and devices.
It is difficult to establish a clear strategy for the first stages of the settlement of a Martian base.
Is the risk acceptable? Update: I look forward to Rand's discussion of risk.
Thus, at present, an individual acting on his own behalf or on behalf of another individual or a private association or an international organization could lawfully appropriate any part of outer space, including the moon and other celestial bodies.
...it has been suggested that only the United Nations acting on behalf of the world community as a whole should be entitled to appropriate...
Mr. Obama chose to define America's enemy not ideologically but organizationally, as al Qaeda and its affiliates.
The revelation that the Obama administration has presided over the development of an arms pipeline to al-Qaeda in Syria — and Biden’s apparently deliberate untruth about it in last week’s debate — is the latest Obama foreign policy coverup.The anti-American president. Update: more.
The moderator will not ask follow-up questions or comment on either the questions asked by the audience or the answers of the candidates during the debate or otherwise intervene in the debate except to acknowledge the questioners from the audience or enforce the time limits, and invite candidate comments during the 2 minute response period.
In order for "alternate energy" to become feasible, it has to satisfy all of the following criteria:
1. It has to be huge (in terms of both energy and power)
2. It has to be reliable (not intermittent or unschedulable)
3. It has to be concentrated (not diffuse)
4. It has to be possible to utilize it efficiently
5. The capital investment and operating cost to utilize it has to be comparable to existing energy sources (per gigawatt, and per terajoule).
The only sources of energy available to us now that satisfy all five are petroleum, coal, hydro, and nuclear.Instead, those in charge will continue to beat dead horses.
The only way that Mars will be developed first is by a top down, massive effort with myopic focus on the red planet.
...a Lunar ship can be sized at 2% of the Mars ships size, and still haul at least equal tonnage.