jeriendhal: (Default)
 Fifty years ago today, a small, two-man vessel landed on the surface of the Moon. The great effort behind this feat began as a political stunt by the United States to outshine its perceived rival, the Soviet Union. The end result was one of the truly transcendent moments in human history. Nothing like it had happened before.

And for fifty years, nothing like it has happened since.

That last sentence was deliberately negative, which is an easy path to take when considering human spaceflight. Growing up in the 70's, especially when I began to read sci-fi voraciously, it was easy to see the supposed future ahead of us. We'd have moon colonies mining Helium 3 for fusion reactors, we'd land astronauts on Mars. We would have massive O'Neill cylinders rotating majestically in orbit at L5, as orbital workers built the first solar power satellites feed energy to a hungry Earth. And from there we would move outward, to Jupiter, Saturn, to the stars themselves.

That didn't happen. Space, as the saying goes, is hard. It is utterly hostile to fragile humanity, which is a specialized organism designed to survive in a narrow band between the ground and the sky, on a single world, in a single solar system, two thirds of the way up a spiral arm in an unremarkable galaxy, in a universe larger than our small evolved monkey brains can really comprehend.

The idea of pioneers in rocket Conestogas moving outward to colonize the solar system as we colonized America (but without the Native American genocide) was a pipe dream at best, self-delusion at worst. Rockets are vastly more complicated and expensive beasts than covered wagons, and Mars isn't Kansas.

But it's also disingenuous to complain that space exploration stopped for fifty years either. We just did it using robots and satellites. No one can look at the achievements of Voyager, Viking, Pioneer, Pathfinder, Galileo, Mars Surveyor, Curiosity, the Lunar Reconnaissance Orbiter, and especially the Hubble Space Telescope, and tell me weren't exploring. We now have detailed maps of every world and major moon in the Solar System. We have proof of water on Mars. We have proof of exosolar planets orbiting other stars, some with the potential of life upon them. And we look at the ice covered surface of Europa, and are making tentative plans to drill deep within it, perhaps to discover Earth isn't the sole abode of life around our star.

All of that was accomplished by engineers and scientists, but none of it by astronauts. Turned out, we didn't need them.

That's another disingenuous argument. The Space Shuttle was an expensive and dangerous beast, built on compromises and (some) ill considered engineering choices, and it never really reached its potential until the last ten years of its life span, when it was used to construct and service the ISS, and it never left Earth's orbit. But the science it provided during its lifetime was as invaluable as any we received from Curiosity and Sojourner.

The dreams of the 70's are very much dead. Helium 3 is a scam. Solar power sats are unneeded with the rapid decrease in the price of ground based solar cells and lithium batteries. L5 colonies were a pipe dream, an expensive suburbia to get away from Those People, at the height of concerns over urban decay. Mars remained out of reach and far too expensive, as NASA no longer commanded the resources and budget of an entire nation. It's not the future I was promised.

But it is still a bright and remarkable future. In recent years, with the rise of reusable boosters, we seem tantalizing close to the point of reaching orbit and maybe the moon on a regular and relatively expensive basis. Ultimately that might not pan out. But if it doesn't, it wasn't because we stopped trying.

Apollo Day

Jul. 20th, 2016 07:57 am
jeriendhal: (Wazagan)
Forty-seven years ago on this day mankind set foot upon another world for the first time in history. A feat not repeated in the last 44 years, since the landing of Apollo 17.

Sigh. I know probes are safer, and can provide much the same data, and are much less expensive, but still...
jeriendhal: (Wazagan)
Listening to the Audible edition of Rendezvous With Rama [1] and just got to the bit where they realize why the southern cliffs of the Cylindrical Sea are 500 meters high compared to the 50 meters for the northern shore, to accommodate the sea's rise against the aft end when Rama accelerates.

Except when Rama stops accelerating, wouldn't that mean all that water would be coming back just as swiftly? Fifty meters makes a great wave break, but unless I'm missing something, the northern section would still be seriously flooded.

[1] Which is fairly terrible BTW. Clarke isn't exactly an engaging prose stylist to start with, but Peter Gamin sounds almost asleep while he's narrating.
jeriendhal: (Bitch)
So I was looking through a 1980 era copy of Analog looking for an example of the game ads Metagaming used to run for an article/youtube about the history of Ogre I was thinking of writing. Flipping through it I found an old Alternative View column written by JP, in which he decided that Velikovsky had more scientific integrity than a group of American scientists, because they moved a scientific conference at the prodding of Margret Mead because the state it was originally going to be held in didn't sign the Equal Rights Amendment.

Dr. Jerry Pournelle: Kinda of a dick for over thirty years.
jeriendhal: (Default)
"What an astonishing thing a book is. It's a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But one glance at it and you're inside the mind of another person, maybe somebody dead for thousands of years. Across the millennia, an author is speaking clearly and silently inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of working magic.
"Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insights and knowledge, painfully extracted from Nature, of the greatest minds there ever were, with the best teachers, drawn from the entire planet and from all of our history, to instruct us without tiring, and to inspire us to make our own contributions to the collective knowledge of the human species."

-Cosmos, Episode 11, "The Persistence of Memory"
jeriendhal: (Default)
Gacked from [livejournal.com profile] elfs

Nevada governor signs law for liscence plates to identify robot cars

Now if can just get an AI installed in Burt Rutan's flying car we can have a real life Gay Deciever

(not that I ever want to read that book again...)
jeriendhal: (Dies!)
No, that above sentence doesn't parse for me either.

Nevertheless, Seth (Family Guy, American Dad) McFarlane is going to produce Cosmos: A Space Time Odyssey for FOX television, billing it as a sequel to Carl Sagan's classic series.

Funny, I'm pretty the calendar says August 8th, not April 1st.

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