Showing posts with label space. Show all posts
Showing posts with label space. Show all posts

Tuesday, May 09, 2023

Apollo 11--Apogee of White America?

 Watched the documentary film Apollo 11 last night. Seeing it 54 years after the original offered a certain perspective, not to mention color and clarity.

Couldn't help noticing the almost 100 percent white male control room and the almost 100 percent white audience at Cape Canaveral viewing in person.  The film didn't make a point of either, though I'm sure it wasn't by chance the camera passed over one woman in the control room and a couple blacks watching. The film was shot in 1969 with the sensibilities of the time, so I'm guessing it didn't miss much. I'm sure there was a sizeable TV audience of blacks, but few would have had the time and money to travel to the Cape.  I can only guess the feelings of the black watchers; possibly discomfort at being one in a thousand, possibly participating in the sort of nationalistic pride most may have felt, or possibly just enjoying the spectacle.

Apollo 11 was a peculiarly white endeavor; IIRC many black leaders questioned spending the money on space rather than domestic needs. The black participants in the effort were hidden. See Hidden Figures.  So it seemed an white American success, perhaps with a little credit to the German scientists who immigrated to Alabama after WWII. 

In 1969 LBJ had been driven from office, so Tricky Dick got to call the astronauts after their recovery. We'd seen the assassinations of MLK and RFK, and the country was sharply divided.  The immigration laws had been reformed in 1965 but it was too early to see their effect.  We were still on the gold standard and inflation was starting to be a concern. 

I don't know how modern historians place the moonshot in the flow of American life.  I suspect many have considered it a sideshow, an assessment which may be changing as we try to get back to the moon and then to Mars. 

Wednesday, March 08, 2023

Standard Time on the Moon

 The NYTimes has an article on a proposal for establishing a time standard for the moon.  With the number of different nations doing activity there (South Korea?), presumably applying their local time to their work there seems to be a need.

It's further complicated because, as the article notes in passing, clocks run faster on the moon!

I had to ask Chatgpt for an explantion, which is:

"Clocks do not actually run faster on the Moon. However, they do appear to run faster when measured from Earth due to the effects of general relativity. 

According to general relativity, time appears to move slower in the presence of a strong gravitational field. The strength of Earth's gravitational field is greater than that of the Moon's, so time moves more slowly on Earth than on the Moon.

This means that if you were to compare the ticking of two identical clocks, one on Earth and one on the Moon, the clock on the Moon would actually tick slightly slower than the clock on Earth. However, because the Moon is much less massive than Earth, the difference in the strength of the gravitational field between the two is relatively small.

The net effect is that when we measure the ticking of a clock on the Moon from Earth, we observe that it ticks slightly faster than an identical clock on Earth due to the time dilation effects of general relativity. This effect is small, however, and only becomes noticeable with extremely precise measurements."





Sunday, September 25, 2022

Sputnik and Equity

 An article on "equity", which is tl:dr, but it's a hook for a memory--we're coming up on the 55th anniversary of the launch of Sputnik, which set off a panic. The wikipedia article is rather narrowing focused. My memory is that education was impacted as well--sputnik was seen as reflecting weaknesses in US schools, particularly in math and science.  There was also a perceived lack of focus on talent; education schools were seen as under the influence of John Dewey and progressive education.

Part of the response to Sputnik was the 1958 National Defense Education Act, which included student aid and an emphasis of science.

We didn't talk about equity back then, but it seems the pendulum has swung the other way now.

Thursday, December 30, 2021

Rules of the Road in Space

 We've seen reports that the International Space Station has had to maneuver to reduce the chances of being hit by debris.  That's pretty straightforward--ISS can maneuver, the debris can't.  

What happens if ISS  and one of Elon Musk's satellites are on a collision course, or any set of two active satellites, each of which can maneuver?  (My guess is that such a collision is less likely than the debris/satellite scenario, but it must be possible.) If both maneuver there's the possibility they will increase the likelihood of a collision. On the sea, or on the road we have well-established conventions to minimize collisions. But in space? 

Saturday, May 30, 2020

I Remember: Space's Early Days

Watched the successful launch today.  Brought back memories of the pathetic early days of our space program, plagued by disasters and pitifully behind the Soviets in throw weight.  America certainly wasn't great in space in those days--1957 to mid 60's.

After Musk had his Starship blow up in the unmanned testing phase, I and I'm sure others of my age thought back to those early days, which increased my concern over today's launch.  But I've long since tried to learn not to obsess over what I can't control.  Today means the Starship event was just another instance of Harshaw rule, and we can all applaud Musk and NASA.

Sunday, December 01, 2019

The Coming of World Government in Space

Technology Review has a piece on the influx of new space agencies, both in smaller countries (Luxembourg!) and by private enterprises.

Elon Musk is putting up thousands of satellites to provide Internet access.

Seems to me we're going to come to the point where the practicalities of managing space will force governments to agree to cede some control to an international organization.  Back in the day we were sure the UN was a steppingstone to a real world government.  That dream is long gone, but technology and the need to control the commons might revive it.

Sunday, June 30, 2019

Space Is Getting Crowded

Technology Review counts up the upcoming Mars missions. I'm aware of EU and US missions in the past, but who knew these nations would go to Mars:

  • Russia!
  • China!!
  • UAE!!!

Saturday, May 12, 2018

Kenya and Space

President Trump supposedly doesn't think much of African countries.  He might be surprised, as I was, at the news Kenya has its own satellite in space.

Even more surprising, Kenya's not in the list of the top five African space programs (Nigeria, Ghana, South Africa, Egypt, and Algeria.

Monday, August 10, 2015

Agriculture in Space

Government Executive reports that the first vegetables grown in space are now being harvested and eaten.  (Some lettuce grown under LED's.)

In the past I've criticized some vertical farming schemes which claimed to rely on sunlight to grow their vegetables.  In the case of the space station, it would seem they'd have 12 hours of sunlight and 12 of darkness, so they shouldn't need LED's.  On the other hand, the sunlight lasts only 90 minutes or so at a time, so maybe they can't rely on the sun.

Friday, April 03, 2015

Pinball in Space

We have one of those pot racks which hang from the ceiling and has hooks for pots and pans.  It's a small kitchen, so every so often my head hits one of the pots, resulting in a very unpredictable chain reaction of pot clanging against frying pan against saucepan, etc. etc. Gradually the interactions die out and the sounds fade away.

Turns out there could be the same sort of interactions in space, which possibility makes a hazard for ideas of NASA changing the course of an asteroid due to hit the earth.  That's mentioned in this piece on NASA plans to practice such things. I applaud both the idea of practicing (see Harshaw rule) and the wisdom of anticipating interactions.

Wednesday, December 31, 2014

Bureaucratic Meetings and Science Fiction

My employees thought I was bad when I held weekly staff meeting, which over time turned very boring.  I would have loved to tell them about the International Space Station meetings, once a day.
And five sets of bosses.  And a a schedule in a spreadsheet.  

I read a good amount of science fiction back in the 1950's and I don't remember any meetings or bureaucratic rules in those novels. 

Thursday, June 27, 2013

The Box and CubeSats

There's a good book on the development of containers, as in container ships, which by permitting the a standardization of the loading and unloading of ships greatly reduced costs and permitted global supply chains.  It's called "The Box"

And here's an interesting piece on a plan for a fleet of small satellites to take photos of the earth  It seems they're going to use CubeSats, which is a standardized module for launching scientific instruments into space. Apparently the concept is on its way to being as important for science as the container is for transportation.

Wednesday, May 08, 2013

Astronauts Are Human Too

The guts of Joel Achenbach's latest post:

"And there was an astonishing pair of images, presented by a fellow from Boeing, Greg Gentry, who has duties involving the International Space Station (I didn’t quite catch his precise role). He showed the U.S. laboratory module at launch: A perfectly clean chamber, with all the equipment carefully stowed in cabinets — not a loose item to be seen. Then he showed that same module as it is actually used at the International Space Station: Extremely cluttered, with wires everywhere, gear all over the place. Frankly, it looks like a mess (though I’m sure the astronauts know exactly where everything is and why they’ve got it set up that way).
“We really didn’t anticipate the needs for stowage very well,” Gentry said.

The ancient lament: Not enough closet space!"

Sunday, April 21, 2013

Douthat: Sci-Fi Optimism and Worldly Pessimism

Ross Douthat at the Times passes on Boston and terrorists in favor of musing about extra terrestial worlds.

He finds optimism in the 1950's science fiction--we confidently expected to visit other worlds and other galaxies--which has faded today and hopes that some of that optimism can be refound.

I was a reader of the old-time science fiction: Clarke, Heinlein, Pohl, Asimov, et. al.  I loved it.  And I agree we were optimistic then, at least if we didn't blow ourselves up (see "A Canticle for Leibowitz).  Remembering those times though  I think we were more pessimistic about the fate of the "Third World", as we used to call the recently freed colonies, at least we were by the middle 60's when the first flush of enthusiasm about decolonization had passed.  The feeling led into the gloom and doom of the running out of resources crowd, the fear that we'd never feed the booming population, etc. 

So the passage of 50 years has produced surprises: we've not been to the moon for many years, humans have never visited Mars.  On the other hand the progress made by developing nations is still startling to me. 

Thursday, January 03, 2013

Unregenerate Chauvinist: Big Hair, Nice Legs

That's my chauvinist reaction to the departing commander of the Space Station.  See her on Youtube here conducting a tour.

Who knew Sunita Williams held the record for space flight for a woman? And lots of other facts at Wikipedia.

Wednesday, September 05, 2012

What Robots Can't Do

Robots can do more and more every day, and I'm eagerly waiting for the day when they can drive a car.  But what they can't do is use a toothbrush to fix a space station, as described here.

Monday, August 06, 2012

Curiosity: Sometimes You Do It Right the First Time

But not often.  See this Technology Review post.  However, it's nice to hear of people who stayed up late to know the result of the landing.  Reminds me of the days of Mercury/Gemini/Apollo.

Thursday, July 19, 2012

The Promise of Satellites for Agriculture

Back in the day ASCS had an Aerial Photography Branch in the Farmer Programs Division (and two labs, one in Asheville and one in Salt Lake).  With Comsat Congress started the process of privatizing the exploitation of space (in 1962).  We were young then, and full of hope that science fiction dreams would come true.  So ASCS dipped its toe into the world of satellite sensing and satellite photography, thinking someday we'd be able to assess crop conditions and acreages from space. We had for a while someone stationed in Houston just to work with NASA on this area.

I'm not sure of the history between then and now, but this earthobservatory image from NASA shows what's possible now, in the way of assessing drought.

Friday, January 27, 2012

A Base on the Moon

I bow to no one in my disdain for Mr. Gingrich.  But, there's always a but.  I do have to admit to just a tad of regard for his pushing the idea of establishing a base on the moon. He's wrong, of course. He pushes the base as a national enterprise, redounding to the glory of the American nation.  What the President elected in November should do is make a major push to internationalize space, try to get the Chinese participating, open our efforts up to other nations.  Obama, and Gingrich, seem to want to commercialize space, relying mostly on private enterprise. That's well and good, but.

This but is the problem of space junk. Space, near-earth space,  is a "commons", and the human race is currently engaged in its destruction. The only way to prevent polluting space is with international governance, plus funding of engineering solutions, a space garbage collector.

Back to Newt. I grew up in the classic age of science fiction: Heinlein, Asimov, Anderson, Clarke, et. al. While I know better now, it's hard to abandon one's childhood, hence my attitude towards Newt and his base on the moon.