Bench Grass
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
- I Would Run Away to the Air: The British Economy, Montgolfier to 727, Part 1
- Postblogging Technology, March 1944, I: Pulling In the Horns
- 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





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