Saturday, November 23, 2019

NEOM Beats Mars

If you have read three articles on NEOM, it is fair to say you are no NEOM expert, and I am no NEOM expert. I expect to read up on it a little bit more. But sometimes it is an advantage to have read less. That gives you a freshness of perspective.

NEOM: Wide Participation Will Enhance Chance Of Success
NEOM, Jerusalem: Twin Cities?
My Take On NEOM, The City
NEOM: A City

Every astronaut has been an athlete. You need to be in an absolute great shape physically to experience that pressure on your body when the rocket accelerates at rocket speed to get out of the clutches of earth's gravity. This means everyone who buys a ticket from Elon to go to Mars will have to attain that athlete status. And that's for the first part of the journey when gravity is a big problem. Then you have a nine-month journey of being in a no gravity zone. That actually is harder on the body. Lack of gravity is very challenging for your bones, for your eyes, for your body in general. And there no amount of physical training can prepare you.

But NEOM does not have that Mars problem. NEOM is on earth. Mars has been sold as a fresh start for humanity. NEOM can be that fresh start. But it has to be a fresh start in many ways. It has to be a fresh start politically, economically, technologically.

NEOM needs peace. NEOM needs the Saudi-Iran regional cold war to end. NEOM needs genuine peace between Israel and Palestine. Peace is necessary infrastructure.

Also, NEOM is not going to have, so what air do we breathe issues. It is not going to have radiation issues. Earth has a magnetic field that protects it from solar radiation.

There are also psychological issues. If you keep people in a small space for too long, many get claustrophobic. And they start acting up.


Is Elon Musk Just Getting Started?
Elon Musk's Giant Blind Spot: Human Beings



Humans Will Never Colonize Mars The Red Planet is a cold, dead place, with an atmosphere about 100 times thinner than Earth’s. The paltry amount of air that does exist on Mars is primarily composed of noxious carbon dioxide, which does little to protect the surface from the Sun’s harmful rays. Air pressure on Mars is very low; at 600 Pascals, it’s only about 0.6 percent that of Earth. You might as well be exposed to the vacuum of space, resulting in a severe form of the bends—including ruptured lungs, dangerously swollen skin and body tissue, and ultimately death. The thin atmosphere also means that heat cannot be retained at the surface. The average temperature on Mars is -81 degrees Fahrenheit (-63 degrees Celsius), with temperatures dropping as low as -195 degrees F (-126 degrees C). By contrast, the coldest temperature ever recorded on Earth was at Vostok Station in Antarctica, at -128 degrees F (-89 degrees C) on June 23, 1982. Once temperatures get below the -40 degrees F/C mark, people who aren’t properly dressed for the occasion can expect hypothermia to set in within about five to seven minutes............. The notion that we’ll soon set up colonies inhabited by hundreds or thousands of people is pure nonsense.......... Gravity on the Red Planet is 0.375 that of Earth’s, which means a 180-pound person on Earth would weigh a scant 68 pounds on Mars. While that might sound appealing, this low-gravity environment would likely wreak havoc to human health in the long term, and possibly have negative impacts on human fertility. ........ the unfulfilled visions proposed during the 1940s and 1950s........ “Back then, cover stories of magazines like Popular Mechanics and Popular Science showed colonies under the oceans and in the Antarctic,” Friedman told Gizmodo. The feeling was that humans would find a way to occupy every nook and cranny of the planet, no matter how challenging or inhospitable ........ “But this just hasn’t happened. We make occasional visits to Antarctica and we even have some bases there, but that’s about it. Under the oceans it’s even worse, with some limited human operations, but in reality it’s really very, very little.” As for human colonies in either of these environments, not so much. In fact, not at all, despite the relative ease at which we could achieve this...... Unlike other fields, development into human spaceflight, he said, “has become static.” Friedman agreed that we’ll likely build bases on Mars, but the “evidence of history” suggests colonization is unlikely for the foreseeable future........ astronauts on the ISS, who are subject to tremendous muscle and bone loss, try to counteract the effects by doing strength and aerobic training while up in space. As for treating the resulting negative health impacts, whether caused by long-duration stays on the ISS or from long-term living in the low-gravity environment of Mars, “we’re not there yet” ........ It’s a dangerous delusion to think that space offers an escape from Earth’s problems. We’ve got to solve these problems here. Coping with climate change may seem daunting, but it’s a doddle compared to terraforming Mars. No place in our solar system offers an environment even as clement as the Antarctic or the top of Everest.

There’s no ‘Planet B’

....... Martian terraforming is a pipedream, a prospect that’s “way beyond any kind of technology we’re going to have any time soon” ....... radiation on Mars is far worse than we thought, adding that “we don’t have the long-term solutions yet, unless you want to risk radiation illnesses.” Depending on the degree of exposure, excessive radiation can result in skin burns, radiation sickness, cancer, and cardiovascular disease........ Life in a Martian colony would be miserable, with people forced to live in artificially lit underground bases, or in thickly protected surface stations with severely minimized access to the outdoors. Life in this closed environment, with limited access to the surface, could result in other health issues related to exclusive indoor living, such as depression, boredom from lack of stimulus, an inability to concentrate, poor eyesight, and high blood pressure—not to mention a complete disconnect from nature......... we don’t see colonists living in Antarctica or under the sea, so why should we expect troves of people to want to live in a place that’s considerably more unpleasant? ....... for prospective families hoping to spawn future generations of Martian colonists, it’s borderline cruelty. ...... Studies of astronauts who have participated in long-duration missions lasting about a year exhibit troubling symptoms, including bone and muscle loss, cardiovascular problems, immune and metabolic disorders, visual disorders, balance and sensorimotor problems, among many other health issues. ...... Some astronauts, like NASA’s Scott Kelly, never feel like their old selves again, including declines in cognitive test scores and altered gene function. ........ The regolith, or soil, on Mars is toxic, containing dangerous perchlorate chemicals, so that also needs to be avoided. To grow crops, colonists will likely build subterranean hydroponic greenhouses. This will require specialized lighting, genetically modified plants designed specifically for Mars, and plenty of water, the latter of which will be difficult to source on Mars.........

We may be stuck on Earth.



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