Bench Grass is a blog about the history of technology by the former student of a student of Lynn White. The main focus is a month-by-month retrospective series, covering the technology news, broadly construed, of seventy years ago, framed by fictional narrators. The author is Erik Lund, an "independent scholar" in Vancouver, British Columbia. Last post will be 24 July 2039.
Popular Posts
- Gathering the Bones, 18: Hew Down the Bridge!
- Postblogging Technology, October, I: Forest for the Trees
- The Bishop's Sea, III: The Real Presence
- Postblogging Technology, November, 1943: Caesar's New Clothes
- Postblogging Technology, November 1950, II: Platypus Time
- Postblogging Technology, December 1950, II: Christmas Corps
- Postblogging Technology, March 1944, I: Pulling In the Horns
- I Would Run Away to the Air: The British Economy, Montgolfier to 727, Part 1
- A Techno-Pastoral Appendix to Postblogging Technology, October 1950: The Chestnut Plague
- The Bishop's Sea: Fine Corinthian Leather
Sunday, April 19, 2026
Catseye: A Technical Appendix to Postblogging Technology, December 1955
Wednesday, April 8, 2026
Postblogging Technology, December, 1955, II: Peace On Earth and Sick Presidents. (In 1955!)
Shaughnessy,
Vancouver,
Canada
Dear Father:
Once again I am writing to the man downstairs. It seems a bit silly, but I also feel blue and somber and like somehow marking the occasion of Victor's death, which has hit James even harder than it has me.
Your Loving Daughter,
Ronnie
Saturday, April 4, 2026
Postblogging Technology, December 1955: A Heart-Warming Christmas Time
Shaughnessy,
Vancouver,
Canada
Dear Father:
Your Loving Daughter,
Ronnie
Sunday, March 29, 2026
Minesweeping: A Technical Appendix to Postblogging Technology, November 1955
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| Shiny! |
Friday, March 20, 2026
Gathering the Bones XXIII: The Royal Proclamation of 1763, Manifest Destiny, and The Reality of 19% Grades
Lana Del Rey? I'm so old I remember when "Lana Del Rey" was an ironic comment on "Lana Del Rey." But I guess she decided not to go away, and I'm grateful because that means I can post an original version of the John Denver chestnut:
Almost heaven, West Virginia/
Blue Ridge Mountains, Shenandoah River
Life is old there, older than the trees
Younger than the mountains, growin' like a breeze
The story, as I have it, is that at some vague point in the Eighteenth Century, vast numbers of Scotch-Irish migrated from, you know, Scotland or Ireland or around about there, to the crestline of the Appalachians. For it was at this clear, geographic line that they were barred from going further by the Royal Proclamation of 1763. George III by this action set himself against the westward drive of the American people that is such a large part of its essential nature, a Western drive bound up in the natural progressiveness of the American spirit, about which I can no longer even. The drive naturally soon resumed after the matter of the Revolution was dealt with, but by this time the Scotch-Irish had settled into the "Appalachians," where their Elizabethan accent persists unchanged to this day, denoting the antiquity of their origins and the oldness of their nature, as otherwise indicated by their charming habits of old time country music, square dancing, and making and consuming illegal alcohol products.
Sunday, March 15, 2026
Line Scanning: A Technical Appendix to Postblogging Technology, November 1955
As the electrons travel down the tube, they interact with the RF signal. The electrons are attracted to areas with maximum positive bias and repelled from negative areas. This causes the electrons to bunch up as they are repelled or attracted along the length of the tube, a process known as velocity modulation. This process makes the electron beam take on the same general structure as the original signal; the density of the electrons in the beam matches the relative amplitude of the RF signal in the induction system. The electron current is a function of the details of the gun, and is generally orders of magnitude more powerful than the input RF signal. The result is a signal in the electron beam that is an amplified version of the original RF signal.
Sunday, March 8, 2026
Postblogging Technology, November 1955: Even the Moderate Adlai Stevenson
Shaughnessy,
Vancouver,
Canada
Dear Father:
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| The idea was good, but the material wasn't up to it and they took it too far. |
Your Loving Daughter,
Ronnie
Sunday, March 1, 2026
Jordan River Is Deep and Wide: A Technical Appendix to Postblogging Technology, November 1956
So we are sorted at work about how this humble blogger is going to be plugged into our current workplace "the retail emergency is forever" scheme:
Saturday: 6-230; Sunday, 10-6:30 "Need experienced people in the mid shift on our busiest day," until Saturday at 3PM, at which time it was changed by text message to 6-2:30: Monday, 6-2:30: Tuesday: 6-2:30: Wednesday, 1:30-10 "The DM will visit tomorrow, we need the department in good shape." It's good to be wanted at work, but if I asked you to guess what I did on Thursday, and you answered, "Managed to sleep for six hours, then sat on the couch eating stale chips and watching Youtube clips, taking a break every hour to nap," you would be right! As it turns out, I wouldn't have been able to finish it on Sunday morning, either.
And this is why this post is largely in response to things Newsweek will cover in our next installment of postblogging, which was about one quarter done Saturday afternoon when I gave up and went out for dinner.
Math time:
+
=
The point of this week's technical appendix is that some people say that British Airways ruined the British aviation industry by rejecting British planes, and some people say that British aviation ruined British aviation by forcing the Britannia on British Airways. In the spirit of the Internet these days, I'm going to present the case that it's actually "both"! And along the way I'm going to drag in some infrastructure projects of the mid-Fifties that are also having a continuing impact in a little part of the world that I like to call "the Middle East," which you probably haven't heard of. We're very geographically educational around this blog!Thursday, February 19, 2026
Postblogging Technology, November 1955, I: The Path of Duty
Shaughnessy,
Vancouver,
Canada
Dear Father:
After the excitement of playing secret agent for a few weeks, I am afraid that my life has turned into that of a junior associate doing her best to get her billable hours up and having to watch her children being raised by someone else.
Your Loving Daughter,
Ronnie
Saturday, February 14, 2026
Fiasco: A Technical Appendix to Postblogging Technology, October 1955
i)
ii)iii)Sunday, February 8, 2026
Postblogging Technology, October 1955, II: Boom boom!
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| According to Reddit User WeirdWings, this is the Bartini A-57, a supersonic V/STOL delta wing flying boat nuclear bomber, with a supersonic recon plane piggyback. "It was never put into production" says Wikipedia, which proceeds to speculate on why it was cancelled in 1957. |
R_.C_.,
Shaughnessy,
Vancouver,
Canada
Dear Father:
Your Loving Daughter,
Ronnie
Sunday, February 1, 2026
The Iron Age Revival of the State, XXV: Company's Calling
Monday, January 26, 2026
Postblogging Technology, October 1953, I: It's Just A Cardial Infarction! Walk It Off!
Shaughnessy,
Vancouver,
Canada
Dear Father:
Your Loving Daughter,
Ronnie
Wednesday, January 14, 2026
The Early Iron Age Revival of the State, XXIV: Believing Because It Is Absurd
Friday, January 9, 2026
Has Anyone Mentioned That Einstein Was Jewish? A Technical Appendix to Postblogging Technology, September 1955
If you are of a certain age and a nerd, you may have encountered the idea that the "spindizzy" reactionless drive of James Blish's City in Flight novels were actually a real thing that Norman Dean was demonstrating to various smart people in the science fiction world. It was probably someone about that age who wrote Spindizzy for MobyGames, which was a big release in 1986 and drives nostalgic interest in its theme music that blends into electronica more generally and dominates an internet search for "spindizzy."
I did eventually sort out what Newsweek's nonsense about variations in the speed of light was about, and the link between this pseudoscience and the Dean Drive was made, although not until the early Sixties. Some of the people involved then went on to promote the Reagan Administration's SDI. Fun times!
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| Even some of the crackcpots hat John W. Campbell promoted in Amazing were embarrassed to be associated with him, but Norman Lorimer Dean was not noe of those guys. |
But before it derailed, there was real science, and to make it even more fun, the real scientist who did the real work eventually derailed himself and became a big Einstein critic of the "relativity is like moral relativism," which used to be bad and opposed to Western Civilization, which is maybe not where we are right now, I can't keep track of the ongoing "start a new car wreck to distract people from the old car wreck" approach to politics they've got going on down there these days.
Maybe in the interest of sanity I can expose some long-gone unsavouriness in the course of discussing some actual history of science and technology, after the jump.
Sunday, January 4, 2026
Postblogging Technology, September, 1955, II: Ike in '56!
Shaughnessy,
Vancouver,
Canada





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