Quotulatiousness

January 15, 2023

QotD: The uncertain “certainties” of war in space

Filed under: Books, Military, Quotations, Space — Tags: , , , , — Nicholas @ 01:00

The comments for that post were very active with suggestions for technological or strategic situations which would or would not make orbit-to-land operations (read: planetary invasions) unnecessary or obsolete, which were all quite interesting.

What I found most striking though was a relative confidence in how space battles would be waged in general, which I’ve seen both a little bit here in the comments and frequently more broadly in the hard-sci-fi community. The assumptions run very roughly that, without some form of magic-tech (like shields), space battles would be fought at extreme range, with devastating hyper-accurate weapons against which there could be no real defense, leading to relatively “thin-skinned” spacecraft. Evasion is typically dismissed as a possibility and with it smaller craft (like fighters) with potentially more favorable thrust-to-mass ratios. It’s actually handy for encapsulating this view of space combat that The Expanse essentially reproduces this model.

And, to be clear, I am not suggesting that this vision of future combat is wrong in any particular way. It may be right! But I find the relative confidence with which this model is often offered as more than a little bit misleading. The problem isn’t the model; it’s the false certainty with which it gets presented.

[…]

Coming back around to spaceships: if multiple national navies stocked with dozens of experts with decades of experience and training aren’t fully confident they know what a naval war in 2035 will look like, I find myself with sincere doubts that science fiction writers who are at best amateur engineers and military theorists have a good sense of what warfare in 2350 (much less the Grim Darkness of the Future Where There is Only War) will look like. This isn’t to trash on any given science fiction property mind you. At best, what someone right now can do is essentially game out, flow-chart style, probable fighting systems based on plausible technological systems, understanding that even small changes can radically change the picture. For just one example, consider the question “at what range can one space warship resolve an accurate target solution against another with the stealth systems and electronics warfare available?” Different answers to that question, predicated on different sensor, weapons and electronics warfare capabilities produce wildly different combat systems.

(As an aside: I am sure someone is already dashing down in the comments preparing to write “there is no stealth in space“. To a degree, that is true – the kind of Star Trek-esque cloaking device of complete invisibility is impossible in space, because a ship’s waste heat has to go somewhere and that is going to make the craft detectable. But detectable and detected are not the same: the sky is big, there are lots of sources of electromagnetic radiation in it. There are as yet undiscovered large asteroids in the solar-system; the idea of a ship designed to radiate waste heat away from enemies and pretend to be one more undocumented large rock (or escape notice entirely, since an enemy may not be able to track everything in the sky) long enough to escape detection or close to ideal range doesn’t seem outlandish to me. Likewise, once detected, the idea of a ship using something like chaff to introduce just enough noise into an opponent’s targeting system so that they can’t determine velocity and heading with enough precision to put a hit on target at 100,000 miles away doesn’t seem insane either. Or none of that might work, leading to extreme-range exchanges. Again, the question is all about the interaction of detection, targeting and counter-measure technology, which we can’t really predict at all.)

And that uncertainty attaches to almost every sort of technological interaction. Sensors and targeting against electronics warfare and stealth, but also missiles and projectiles against point-defense and CIWS, or any kind of weapon against armor (there is often an assumption, for instance, that armor is entirely useless against nuclear strikes, which is not the case) and on and on. Layered on top of that is what future technologies will even prove practical – if heat dissipation problems for lasers or capacitor limitations on railguns be solved problems, for instance. If we can’t quite be sure how known technologies will interact in an environment (our own planet’s seas) that we are intimately familiar with, we should be careful expressing confidence about how future technology will work in space. Consequently, while a science fiction setting can certainly generate a plausible model of future space combat, I think the certainty with which those models and their assumptions are sometimes presented is misplaced.

Bret Devereaux, “Fireside Friday: August 14th, 2020”, A Collection of Unmitigated Pedantry, 2020-08-14.

December 16, 2022

QotD: Little-known types of eclipse

Filed under: Humour, Quotations, Space — Tags: , , — Nicholas @ 01:00

A lunar eclipse occurs when the Earth gets between the Moon and the Sun.

A solar eclipse occurs when the Moon gets between the Earth and the Sun.

A terrestrial eclipse occurs when the Earth gets between you and the Sun. Happens once per 24 hours.

An atmospheric eclipse occurs when an asteroid gets between you and the sky. Generally fatal.

A reverse solar eclipse occurs when the Sun gets between the Moon and the Earth. Extremely fatal.

A motivational eclipse occurs when the Moon gets between you and your goals. You can’t let it stop you! Destroy it! Destroy the Moon!

A marital eclipse occurs when the Moon gets between you and your spouse. You’re going to need to practice good communication about the new celestial body in your life if you want your relationship to survive.

A capillary eclipse occurs when your hair gets between your eyes and the Sun. Get a haircut.

A lexicographic eclipse occurs when “Moon” gets between “Earth” and “Sun” in the dictionary. All Anglophone countries are in perpetual lexicographic eclipse.

A filioque eclipse occurs when the Holy Spirit gets between the Father and the Son.

An apoc eclipse occurs when the Great Beast 666, with seven heads and ten horns, and upon the horns ten crowns, and upon its heads the name of blasphemy, gets between the Earth and the Sun. Extremely fatal.

Scott Alexander, “Little Known Types of Eclipse”, Slate Star Codex, 2019-05-02.

August 1, 2022

QotD: Fermi’s Paradox and the Great Filter(s)

Filed under: Quotations, Space — Tags: , — Nicholas @ 01:00

Though what he really said is open to doubt, the nuclear physicist Enrico Fermi gave his name to a short and possibly final argument against the existence of intelligent life on other planets. There are 200 billion stars in our galaxy alone. 20 billion of these are like our own sun. Let us assume that one in five of these has planets – and we find new exoplanets every year – and let us assume that one in a hundred of these one in five has one planet with liquid water: that gives us 40 million Earth-like planets. I will not carry on with the assumptions, but it seems reasonable that there should be around a hundred thousand other advanced civilisations in our galaxy alone.

This being so, the “Fermi Paradox” asks, where are they? So many other civilisations – so many of them presumably older and more advanced than our own – and they have not visited us. Nor, after generations of scanning with radio telescopes, have we detected any unambiguous signals from them. Either intelligent life on other planets does not exist, or it is so rare and so far apart in time or distance or both, that we shall never find it.

Writing in 2008, Nick Bostrom of Oxford University takes the argument to conclusions that are either depressing or exhilarating. He proposes a set of Great Filters, each of which limits the emergence of intelligent and technologically-advanced life. The most obvious filters are in the past. We shall soon be able to estimate how many planets in our galaxy have liquid water. We still have do not know how life begins. Obviously, it began here. But we have never been able to create a self-replicating organic process in our laboratories. It may be very unusual. It may also be very unusual, once begun, for this process to evolve beyond the very simple. Then it may be very unusual for larger and more complex living structures to evolve, and hardest of all for anything to emerge with the right combination of mind and appendages to enable the birth of a technological civilisation.

Or the Great Filter may be in the future. It may be that civilisations like our own are reasonably common – but that they invariably blow themselves up shortly after finding how to split the atom.

Bostrop’s conclusion is to hope that, when we get there, we shall find that Mars is, and always has been, a sterile rock. Independent life of any kind on a neighbouring planet would suggest a universe teeming with life, and some probability of civilisations like our own. This being so, the lack of contact would put his Great Filter in the future, and would suggest that we are, on the balance of probabilities, heading for self-extinction. No life at all on Mars, now or in the past, would let him keep hoping that the Great Filter is in the past, and that we may have a splendid progress before us.

Sean Gabb, “Do Flying Saucers Exist?”, Sean Gabb, 2020-11-15.

June 27, 2022

High Altitude Research Project and the Martlet Launch Vehicles; Gerald Bull’s dream of a space gun

Filed under: Cancon, History, Military, Space, Technology, USA, Weapons — Tags: , , , , , , , — Nicholas @ 04:00

Polyus Studios
Published 26 Jun 2022

Support me on Patreon – https://www.patreon.com/polyusstudios

In 1968, 7 countries were operating satellites in orbit, while only 3 countries had the ability to launch one themselves. But they were on the verge of being joined by a Canadian university. Starting in the early 1960s, Montreal, Quebec based McGill University developed and began testing an ambitious concept to place small satellites into orbit. It was the culmination of decades of pioneering work across multiple fields. It was the High Altitude Research Project and the Martlet orbital launch vehicle.

Music:
Denmark – Portland Cello Project
Your Suggestions – Unicorn Heads

Chapters:
0:00 Introduction
0:28 Bull’s early career
3:00 Birth of the Program
7:47 Getting HARP off the ground
10:52 Martlet 1
13:26 Early Martlet 2
15:41 Martlet 3
18:05 Enhanced Martlet 2s
21:40 Other HARP Guns
24:19 Quest for an Orbital Capability, the 2G-1
27:53 Satellite Delivery Model, Martlet 4
30:27 Advanced gun research
31:30 Hard times for HARP
32:30 Bull’s Ambition Gets The Best Of Him
35:28 Legacy of the HARP Project

February 14, 2022

Why SpaceX Cares About Dirt

Filed under: Space, Technology, USA — Tags: , , — Nicholas @ 02:00

Practical Engineering
Published 2 Nov 2021

Why do structures big and small sink into the ground, and what can we do to stop it?

Before the so-called Starbase supported crazy test launches of the Starship spaceflight program, it was just a pile of dirt. After nearly two years, they hauled most of that soil back off the site for disposal. It might seem like a curious way to start a construction project, but foundations are critically important. Building that giant dirt pile was a clever way to prevent these facilities from sinking into the ground over time.

Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos!

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November 5, 2021

The New York Times identifies the next big threat to humanity – “Muskism”

Filed under: Books, Business, Media, Space, USA — Tags: , , , , , , — Nicholas @ 03:00

In Thursday’s NP Platformed newsletter, Colby Cosh outlines the “evidence” amassed in a recent New York Times essay blaming Elon Musk for, well, everything:

Elon Musk at the 2015 Tesla Motors annual meeting.
Photo by Steve Jurvetson via Wikimedia Commons.

Lepore commences by describing Bill Gates’s 66th birthday party, for which a bunch of rich people — including Amazon’s Jeff Bezos — were helicoptered to a private beach from a nearby yacht. Neither Elon Musk, thought to be the world’s richest person, or Mark Zuckerberg, founder of newly rebranded Facebook, were present at the party. Zuckerberg was busy illuminating plans for his “metaverse”, which Lepore describes as “a virtual reality,” wherein you wear “a headset and gear that closes out the actual world.”

Here’s where Lepore goes from this: “The metaverse is at once an illustration of and a distraction from a broader and more troubling turn in the history of capitalism. The world’s techno-billionaires are forging a new kind of capitalism: Muskism.”

In literally the next sentence, Lepore admits that the subject of her essay, Elon Musk, immediately and publicly made fun of the Facebook “metaverse” plans. We are on the third paragraph of the essay, and Lepore has already: a) blamed Elon Musk for an A-hole billionaire party he didn’t attend, because he was busy with his engineering and manufacturing projects; and b) applied the new coinage “Muskism” to a virtual reality project that actual Musk loudly criticized. Somehow this essay has severed its own hydrocephalic head twice over, within 500 words.

It gets worse from there as Lepore attempts to complete her mission of denouncing Muskism, which she describes as an “extreme extraterrestrial capitalism.” She quickly has to admit that Bill Gates, who is mostly spending a computing fortune on global philanthropy these days when he’s not lifting off from yachts in choppers, doesn’t have one single freaking thing to do with absolutely any of this. NP Platformed was an editor back in the day, so we notice that the intro of Lepore’s essay is at this point not only detached from its body, but has been left to rot several miles away. Gates-Musk-Bezos-Zuckerberg: they’re all tentacles of the same menacing Muskist octopus here, as in so much newspaper and magazine commentary, and abuse flung in their general direction will suffice to condemn all.

Lepore’s accusation against Musk turns out to be … that he likes some classic science fiction but doesn’t always concur with the politics of its authors. Musk has called himself a “utopian anarchist of the kind best described by Iain Banks,” but Banks was “an avowed socialist.” Gasp! Banks (1954-2013), the Scottish science fiction author best known for the Culture series, was a particular kind of U.K. “libertarian socialist” who believed strongly in spacefaring as a step toward post-scarcity life for sentient beings. His politics are easily misunderstood by Americans, who don’t have this particular kind of weirdo, and the interstellar “Culture” he envisioned was never intended to be admired unironically. In other words, that part of Lepore’s essay is as mangled and obtuse as the rest.

October 31, 2021

QotD: We’re still trapped in Heinlein’s “Crazy Years”

Filed under: Books, History, Quotations, Space, Technology, USA — Tags: , , , , — Nicholas @ 01:00

In Robert Heinlein’s famed “Future History” he constructed an elaborate timeline of thing to come, to provide a structure for his short stories.

Looking forward from the year 1940, when the timeline was first formed, it was reasonable, even conservative, guesswork to predict the moon landing by the 1980’s, forty years later, since the first powered flight by the Wright Brothers had been forty years earlier. Heinlein’s Luna City founded in 1990 a decade or so later, with colonies on Mars and Venus by 2000. Compare: a submersible ironclad was written up as a science romance by Jules Verne in 1869, based on the steam-powered “diving boat” of Robert Fulton, developed in 1801. In 1954 the first atomic-powered submarines — all three boats were named Nautilus — put to sea. The gap between Verne’s dream and Rickover’s reality was eight decades, about the time separating Heinlein’s writing of “Menace from Earth” and its projected date.

Looking back from the year 2010, however the dates seem remarkably optimistic and compressed. We have not even mounted a manned expedition to Mars as yet, and no return manned trips to the Moon are on the drawing boards.

One prediction that was remarkably prescient, however, was the advent of “The Crazy Years” described as “Considerable technical advance during this period, accompanied by a gradual deterioration of mores, orientation, and social institutions, terminating in mass psychoses in the sixth decade, and the interregnum.”

He optimistically predicts a recovery from the Crazy Years, the opening of a new frontier in space, and a return to nineteenth-century economy. Full maturity of the human race is achieved by a science of social relations “based on the negative basic statements of semantics.” Those of you who are A.E. van Vogt fans will recognize our old friends, general semantics and Null-A logic cropping up here. Van Vogt, like Heinlein, told tales of a future time when the Non-Aristotlean logic or “Null-A” training would give rise to a race of supermen, fully integrated and fully mature human beings, free of barbarism and neuroses.

Here is the chart [full size version here]. Note the REMARKS column to the right.

What Heinlein failed to predict was that the Crazy Years would simply continue up through 2010, with no sign of slackening. Ladies and gentlemen, we live in the Crazy Years.

John C. Wright, “The Crazy Years and their Empty Moral Vocabulary”, John C. Wright, 2019-02-18.

October 27, 2021

Alouette and The Ionospheric Satellites; A Beginners Guide To The Early Canadian Space Program

Filed under: Cancon, History, Space, Technology, USA — Tags: , , , , — Nicholas @ 02:00

Polyus Studios
Published 22 Aug 2109

Don’t forget to like the video and subscribe to my channel!
Support me on Patreon – https://www.patreon.com/polyusstudios

In the early 1960s Canada was among the early pioneers of space technology and research. Scientists and engineers took advantage of then cutting edge technologies like the transistor and solar panels, to produce the Alouette and ISIS series of satellites. It was an immense engineering challenge that represented the high water mark of a tradition of ionospheric research that began back before the establishment of Canada as a nation. The Alouette and ISIS series of satellites produced more than 1200 research papers exploring all aspects of the Earth’s ionosphere, the aurora, and other phenomena. They also demonstrated to the world that Canada was a world leader in peaceful space technology.

0:00 Intro
0:29 Arctic exploration and early magnetic field research
2:40 New technologies promote new questions
5:35 Birth of the Canadian Space Program
9:25 Testing and Launch of Alouette
13:04 ISIS series of satellites
17:12 Legacy and Conclusion

Music:
“Denmark” – Portland Cello Project

Research sources:
https://nssdc.gsfc.nasa.gov/nmc/space…
https://space.skyrocket.de/doc_sdat/i…
http://www.friendsofcrc.ca/Projects/I…
https://www.ieee.ca/millennium/alouet…
https://www.ieee.ca/millennium/isis/i…
http://www.asc-csa.gc.ca/eng/satellit…
http://friendsofcrc.ca/Projects/ISIS/…
https://nssdc.gsfc.nasa.gov/nmc/space…
http://acuriousguy.blogspot.com/2017/…
https://photostories.ca/explore/photo…
http://www.ieee.dreamhosters.com/digl…
https://www.ieee.ca/millennium/alouet…

#Spacecraft #PolyusStudios #CanadianAerospace

September 25, 2021

Will Mars become the equivalent to Earth that India and the East Indies once were for Europe?

Filed under: Economics, Europe, History, India, Space — Tags: , , , , , — Nicholas @ 03:00

In the latest Age of Invention newsletter, Anton Howes goes a long way in both time and space away from his normal Industrial Revolution beat to consider what might happen as humans attempt to colonize Mars:

The first true-colour image generated using the OSIRIS orange (red), green and blue colour filters. The image was acquired on 24 February 2007 at 19:28 CET from a distance of about 240 000 km; image resolution is about 5 km/pixel.
Photo taken by the ESA Rosetta spacecraft during a planetary flyby.

The other week I attended an unconference, which had a session on the implications of establishing colonies on other planets. Although this was largely meant to be about the likely impact on Earth’s natural environment — what will be the impact of extracting raw materials from asteroids and other planets? — some of the discussion reminded me of the challenges faced by the long-distance explorers, merchants, and colonists of four hundred years ago. There are quite a few parallels I can see between travelling to Mars, say, in a hundred years’ time, and travelling between continents in the age of sail.

For a start, there’s the seasonality and duration of the voyages. European ships headed for the Indian Ocean had to time their voyages around the monsoon season; trips across the Atlantic were limited to just half the year because of hurricanes. Round-trips took years. Similarly, the departure window for a voyage from Earth to Mars only comes around once every 26 months, and even the most optimistic estimates place eventual journey times at about 4-6 months. Supposing that Mars can be permanently settled, any colony there will likely be extremely dependent on the regular arrival of resupply craft. There’s only so long that any group can survive in a hostile environment on their own.

[…]

The Portuguese had once been the only Europeans to trade directly into the Indian Ocean, but the structure of their trade — essentially a state-run monopoly with some licensed private merchants — was unable to compete with the arrival of the Dutch. The initial Dutch forays into the Indian Ocean in the 1590s had originally been financed by lots of different companies, often associated with particular cities — similar to the proliferation of billionaire-led space exploration companies today. But the Dutch soon recognised that such a high-risk trade would only be able to survive if it came with correspondingly high rewards — rewards that could only be guaranteed by eliminating domestic competitors (and if possible, foreign ones too). They therefore amalgamated all of the smaller concerns into a single company with a state-granted monopoly on all of the nation’s trade with the region. In this, they actually copied the English model, but then outdid them in terms of the organisation and financing of that company […].

Are we likely to see a similar move towards state-granted monopoly corporations when it comes to space colonisation? I suspect it depends on the potential rewards, and on the strength of the competition. There is certainly precedent for incentivising risky and innovative ventures in this way, through the granting of patent monopolies. Patents for inventions in the English tradition originally even had their roots in patents for exploration. I would not be surprised if such policies end up being used again by countries that are late-comers to the space race, perhaps by granting domestic monopolies over the extraction of resources from particular planets or moons. Although direct state funding can help in being first, like they did for Spain and Portugal in the fifteenth and sixteenth centuries, state-granted monopolies for private actors may again end up being the ideal catch-up tool for laggards, as they were for the English and the Dutch.

How the monopolies are managed will also matter. The English East India Company, for example, was initially more focused on rewarding its shareholders than it was on investing in the full infrastructure with which to dominate a trade route. The Dutch company, by contrast, from the get-go was part of a more coordinated imperial strategy — one that sought to systematically rob the Portuguese of their factories and forts, to project force with the aid of the state. Indeed, if there’s one big lesson for the geopolitics of space, it’s that far-flung empires can be extremely fragile, with plenty of opportunities for late-arriving interlopers to take them over.

Although it’s difficult to imagine space colonies being able to become self-sufficient any time soon, it seems likely that those controlled by particular companies or countries may occasionally be persuaded — by bribes or by force — to defect. What’s to stop them when they’re hundreds of millions of kilometres away from any punishment or help? Ill-provisioned factors, forts, or colonies happily switched sides to whoever might provision them better. As I mentioned last week, such problems curtailed the ambitions of other would-be colonial powers, like the Duchy of Courland and Semigallia. When the Dutch turned up in the Indian Ocean, many of the Portuguese forts they threatened simply surrendered.

I bow to Anton’s far greater historical knowledge in most things, but state monopolies in the 16th to 19th centuries were very different creatures than their potential modern equivalents, and the much more comprehensive degree of state control of the economy now would probably mean that a state monopoly over extraterrestrial activities would be a worst-possible outcome. The greater the powers in the hands of the state, in almost every case, the worse all state-controlled activities have become. The incentives of civil servants are vastly different than those of individuals or businesses and are farcically incompatible with the risk-taking necessary on a dangerous frontier.

September 16, 2021

QotD: The youthful Utopian

Filed under: Quotations, Space, Technology — Tags: , , — Nicholas @ 01:00

More than half a century ago, I had a friend in junior high school I could never figure out or drum much common sense into. He was quite the dreamer. He loved science fiction. His nickname was “Angus” — derived from the fact that he was rather rotund, and our school was surrounded by farm fields. When we grazed at the same lunch table, he would speculate endlessly about what life on other planets might be like. He was very earnest, and very entertaining.

One day I suggested facetiously that Angus stop speculating and go find out for himself. “Build a spaceship someday and fly to the planet of your choice,” I recommended. To my surprise, he took me seriously.

Some days later, Angus excitedly told me he had it all worked out. He had designed the spaceship and even brought the plans to show me. Then he unfolded a large sheet of brown wrapping paper. There it was — the entire cockpit control panel of the craft that would take Angus to the cosmos. There was a button for everything.

“This is not a plan!” I declared with a laugh. “It’s just a bunch of buttons with labels on them.”

“But it’s all here,” Angus insisted. “I’ve thought of everything — Start, Stop, Land, Take-off, Dodge Asteroids, you name it, everything you need to know.” He even had an all-purpose button to take care of anything unexpected, which he thought was a genius innovation.

What I remember most vividly about this experience was not the fine detail of my friend’s sketch. It was my frustrating inability to convince him he was delusional, that his plan was no plan at all, that as a 14-year-old he wasn’t yet ready for a senior position at NASA. He was what philosopher Eric Hoffer might call a “true believer” — convinced beyond any hope of convincing otherwise that his plan was thorough, perfect, and sure to work.

I lost track of Angus after graduation, but I am quite certain his spaceship never left the ground.

Lawrence W. Reed, “The Dark Side of Paradise: A Brief History of America’s Utopian Experiments in Communal Living”, Foundation for Economic Education, 2021-06-13.

September 2, 2021

Charles Stross predicts that Elon Musk will become a multi-trillionaire

Filed under: Business, Economics, Government, Space, Technology, USA — Tags: , , , , — Nicholas @ 03:00

Charles Stross isn’t exactly a fan of Musk’s, but he outlines why he thinks Musk is on a potentially multi-trillion dollar path:

Elon Musk at the 2015 Tesla Motors annual meeting.
Photo by Steve Jurvetson via Wikimedia Commons.

So, I’m going to talk about Elon Musk again, everybody’s least favourite eccentric billionaire asshole and poster child for the Thomas Edison effect — get out in front of a bunch of faceless, hard-working engineers and wave that orchestra conductor’s baton, while providing direction. Because I think he may be on course to become a multi-trillionaire — and it has nothing to do with cryptocurrency, NFTs, or colonizing Mars.

This we know: Musk has goals (some of them risible, some of them much more pragmatic), and within the limits of his world-view — I’m pretty sure he grew up reading the same right-wing near-future American SF yarns as me — he’s fairly predictable. Reportedly he sat down some time around 2000 and made a list of the challenges facing humanity within his anticipated lifetime: roll out solar power, get cars off gasoline, colonize Mars, it’s all there. Emperor of Mars is merely his most-publicized, most outrageous end goal. Everything then feeds into achieving the means to get there. But there are lots of sunk costs to pay for: getting to Mars ain’t cheap, and he can’t count on a government paying his bills (well, not every time). So each step needs to cover its costs.

What will pay for Starship, the mammoth actually-getting-ready-to-fly vehicle that was originally called the “Mars Colony Transporter”?

Starship is gargantuan. Fully fuelled on the pad it will weigh 5000 tons. In fully reusable mode it can put 100-150 tons of cargo into orbit — significantly more than a Saturn V or an Energiya, previously the largest launchers ever built. In expendable mode it can lift 250 tons, more than half the mass of the ISS, which was assembled over 20 years from a seemingly endless series of launches of 10-20 ton modules.

Seemingly even crazier, the Starship system is designed for one hour flight turnaround times, comparable to a refueling stop for a long-haul airliner. The mechazilla tower designed to catch descending stages in the last moments of flight and re-stack them on the pad is quite without precedent in the space sector, and yet they’re prototyping the thing. Why would you even do that? Well, it makes no sense if you’re still thinking of this in traditional space launch terms, so let’s stop doing that. Instead it seems to me that SpaceX are trying to achieve something unprecedented with Starship. If it works …

There are no commercial payloads that require a launcher in the 100 ton class, and precious few science missions. Currently the only clear-cut mission is Starship HLS, which NASA are drooling for — a derivative of Starship optimized for transporting cargo and crew to the Moon. (It loses the aerodynamic fins and the heat shield, because it’s not coming back to Earth: it gets other modifications to turn it into a Moon truck with a payload in the 100-200 ton range, which is what you need if you’re serious about running a Moon base on the scale of McMurdo station.)

Musk has trailed using early Starship flights to lift Starlink clusters — upgrading from the 60 satellites a Falcon 9 can deliver to something over 200 in one shot. But that’s a very limited market

As they say, read the whole thing.

July 25, 2021

The Line editors clearly loved crafting their “Dicks in space!” headline

Filed under: Business, Space, Technology, USA — Tags: , , , , , , — Nicholas @ 05:00

As a fellow space nerd, I welcome the editors of The Line to our number:

You’ve probably noticed by now that your Line editors are space enthusiasts. It’s been an interesting few weeks on that front. Sir Richard Branson flew out of the atmosphere, into free-fall (not zero-G, you scientific illiterates!), on a Virgin Galactic space plane. That said, he didn’t get high enough to cross the Kármán line, which, in the absence of any real international agreement on where the Earth ends and space begins, is as close as we come to a functional definition of the edge of space. (It’s an altitude of 100 km, for those wondering.) Jeff Bezos, of Amazon wealth and fame, did cross that line this week, along with three passengers, including Wally Funk, which was cool, if you’re into that sort of thing. (We are.) Bezos was riding a Blue Origin New Shepard rocket; Blue Origin is a company he founded and funded with his own gigantic wealth.

Look, let’s face facts — your Line editors are into space. We just are. But yeah, we agree that space policy is important enough and complicated enough to warrant debate. Reasonable people can have different views on this stuff. And we also agree that there are important debates to have about the accumulated wealth of billionaires, and the distorting effects that wealth can have on politics and society.

But unlike a bunch of ya’ll, we don’t get confused about a debate over income inequality and a debate over space travel. You can despise Bezos, Amazon and everything he’s done there, and still recognize that what he is doing on the space front is important. Everyone rolling their eyes at Bezos matching space flight capabilities that the Soviets and Americans achieved literally 60 years ago is allowing their desire to rack up some sweet Twitter likes with a snarky dunk blind themselves to the fact that Bezos (and Elon Musk’s SpaceX, which is way ahead of Blue Origin) aren’t just recreating earlier capabilities, they are massively improving on them.

So yeah, Blue Origin can now do what the Soviets and U.S. could do 60 years ago, but they’re doing it more safely, more efficiently and much, much more sustainably than national space agencies did. Reusability isn’t a frill, it’s a massive game-changer. And as much fun as it is to snort when these private-sector companies recreate an existing capability, do you really think they’re going to stop there?

Branson’s company could be written off as a tourism play for the affluent. Fair enough. Except that making space flight economically viable is the first step to ensuring that capability is both sustainable and more broadly accessible in the long run. Further, Bezos and especially Musk are inventing new and transformative space-flight capabilities. They are materially pushing back against the final frontier in ways that we simply have not before. It won’t matter unless we choose to do anything with these new capabilities, and your guess is as good as ours as to whether or not we will. But we could. That’s huge.

As huge as the gigantic dick-shaped rocket Bezos rode up. Yeah, yeah. We snorted, too. But, like, seriously, folks — making penis jokes about the shape of an object dictated by aerodynamic considerations isn’t quite as witty as you think: the rockets are shaped like penises because they literally have to be in order to work. Having a giggle is fine, but if you actually think you’re making a real point about misogyny and fragile male egos when you get snippy (ahem) about a schlong-shaped rocket, well, we’d love to see what happens when your very emotionally vigorous and feminist vagina-shaped space vehicle hits max Q. So long as we aren’t aboard it or in the landing area for its hurtling debris.

Our main point still stands: don’t let your cynicism and even revulsion at these guys blind you to what they’re doing. Bezos isn’t gonna stop at Yuri Gagarin-vintage accomplishments. Musk sure hasn’t. This’ll matter. It’s time to get serious. They are.

January 9, 2021

QotD: Heinlein’s “Future History”

Filed under: Books, Quotations, Space, USA — Tags: , , , , — Nicholas @ 01:00

I’ve been planning to write about Elon Musk’s Bowie-blasting space car ever since the video footage was transmitted back to Earth in the middle of this week. But I did not even notice until I sat down to the job that I have also been rereading Robert A. Heinlein’s “Future History” short-story cycle. This is not exactly a coincidence: I go back to the Future History every few years. This time I had one of those “Surprise! You’re old!” moments upon realizing that my cheap trade paperback of The Past Through Tomorrow, a collection of the Future History stories, must be 30 years old if it’s a day.

Written between 1939 and 1950 for quickie publication in pulp magazines, the Future History is a series of snapshots of what is now an alternate human future — one that features atomic energy, solar system imperialism, and the first steps to deep space, all within a Spenglerian choreography of social progress and occasional resurgent barbarity. It stands with Isaac Asimov’s Foundation trilogy as a monument of golden-age science fiction.

In some respects the Future History has not aged any better than one might expect. Like other young nerds who created the science-fiction canon, Heinlein was interested in rocketry before it was thought to have any practical use. And Heinlein was really, really good at acquiring or faking expert knowledge of those topics in which he happened to get interested. The man knew his Tsiolkovsky.

The result, in the key story of the Future History, is an uncannily accurate description of the design and launch of a Saturn V rocket. (Written before 1950, remember.) But because Heinlein happened not to be interested in electronic computers, all the spacefaring in his books is done with the aid of slide rules or Marchant-style mechanical calculators (which, in non-Heinlein history, had to become obsolete before humans could go to Luna at all). Heinlein sends people to colonize the moon, but nobody there has internet, or is conscious of its absence.

Colby Cosh, “Heinlein’s monster? The literary key to Elon Musk’s sales technique”, National Post, 2018-02-12.

December 1, 2020

QotD: Elon Musk as a real life Delos D. Harriman

Filed under: Books, Business, Quotations, Space, USA — Tags: , , , , , — Nicholas @ 01:00

The “key story” [in Robert Heinlein’s “Future History” stories] I just mentioned is called “The Man Who Sold The Moon.” And if you’re one of the people who has been polarized by the promotional legerdemain of Elon Musk — whether you have been antagonized into loathing him, or lured into his explorer-hero cult — you probably need to make a special point of reading that story.

The shock of recognition will, I promise, flip your lid. The story is, inarguably, Musk’s playbook. Its protagonist, the idealistic business tycoon D.D. Harriman, is what Musk sees when he looks in the mirror.

“The Man Who Sold The Moon” is the story of how Harriman makes the first moon landing happen. Engineers and astronauts are present as peripheral characters, but it is a business romance. Harriman is a sophisticated sort of “Mary Sue” — an older chap whose backstory encompasses the youthful interests of the creators of classic pulp science fiction, but who is given a great fortune, built on terrestrial transport and housing, for the purposes of the story.

Our hero has no interest in the money for its own sake: in late life he liquidates to fund a moon rocket, intending to take the first trip himself, because he is convinced the future of humanity depends on extraterrestrial expansion of the human species. (Also, the guy just really loves the moon.)

The actual stuff of the story consists of the financial and promotional chicanery that Harriman uses to leverage his personal investment. Harriman uses sharp dealing with governments, broadcasters, political groups: he plants fake news about diamonds on the moon to blackmail (a disguised version of) the de Beers cartel, and terrorizes companies with the threat of using the moon to advertise for competitors. He is, in short, not afraid to use questionable means to achieve a worthwhile higher end, and does not — Musk haters take note! — recoil from actual fraud.

Heinlein didn’t provide for live broadcasting of his imagined lunar mission, which is almost an afterthought in his Great Man business yarn. TV cameras were, like computers, one of his blind spots. But if he had thought to make Harriman the owner of a fancy-sportscar manufacturing concern, and if he had thought to have Harriman put a car in solar (trans-Martian!) orbit as one of his publicity stunts, that would have been there in “The Man Who Sold The Moon.” Selling the moon is just what Musk is doing. Except the moon is a tad worked-over as a piece of intangible property, so we get Mars instead.

Colby Cosh, “Heinlein’s monster? The literary key to Elon Musk’s sales technique”, National Post, 2018-02-12.

November 28, 2020

Miscellaneous Myths: The Zodiac

Overly Sarcastic Productions
Published 27 Nov 2020

Thanks to longtime patron Volt for requesting this topic!

We know their names! We know their symbols! We know there’s a truly staggering number of websites dedicated to their stereotypical personality traits! But what do we know about their stories? Let’s discuss!

FUN FACT I GLOSSED OVER IN THE VIDEO: like I said, it’s REALLY hard to determine when these constellations entered Greece. Most people set the date at 300ish, when Eudoxus codified the Greek calendar based on the Babylonian one — but that clashes with the fact that Heracles’s labors predate that by at least three centuries, and they’ve had those zodiacal themes since that lost epic poem was initially written. We know, therefore, that the Babylonian zodiac entered greece between Homer’s time (when he conspicuously didn’t mention them — and neither did Hesiod in his Astronomia) and Peisander’s time (author of the lost Heracleia), basically the interval between 800 and 600 CE. The phoenician traders carrying that info is a reasonable assumption, especially considering how important the stars are to sailors navigating at night. But it is WILD to me how hard this is to research and how nobody seems to have really explored the timeline here!

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