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I initially was trying to write it in #POSIX #shell without any external dependencies (for speed), but the lack of ${var^} and ${var,} mean HUGE case statements, but I could generate those in bash and paste them in, lol.

Then I came to the lack of ${var:i:1} for splitting variables, and I just kind of gave up.

I guess I could have munged some way of converting a string into an array somehow, but it was so much easier to just write it in 23 lines of bash. :P

#posix #shell

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-05-10 · 10:18 UTC

#Shell scripting: 'It'\''s fine, really. ;)'

#shell

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-03-28 · 17:47 UTC

"To achieve a stable flight without the need for fins, the rocket's heavy motor was located at the top, fed by lines from liquid oxygen and gasoline fuel tanks at the bottom."

Umm, actually, no. That's not how that works. That's what he intended to have happen, and it sounds like common sense, but this is actually the classic #PendulumFallacy of #rocketry:

https://en.wikipedia.org/wiki/Rocket#Pendulum_rocket_fallacy

Date: 2026 March 28
URL: https://apod.nasa.gov/apod/ap260328.html
Title: Robert Goddard and Nell

(No disrespect intended to Mr. Goddard. He was an epic pioneer, and the very best of us learn by making mistakes and analyzing the outcome to learn from them.)

#NASA #Astronomy #PictureOfTheDay #KSP #KerbalSpaceProgram

P.S., thinking about this some days later, I believe the APOD text was referring to the idea of keeping the center of mass ahead of the center of pressure as a means for atmospheric stability, not the self-righting "Pendulum Fallacy." The reason rockets aren't designed like this anymore is that automatic gimballing (and just plain ordinary fins, for that matter) are more than effective to maintain stability, without introducing the complexity of needing to pump fuel upwards against gravity/acceleration.

#pendulumfallacy #rocketry #nasa #astronomy #pictureoftheday #ksp

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-03-28 · 17:47 UTC

"To achieve a stable flight without the need for fins, the rocket's heavy motor was located at the top, fed by lines from liquid oxygen and gasoline fuel tanks at the bottom."

Umm, actually, no. That's not how that works. That's what he intended to have happen, and it sounds like common sense, but this is actually the classic #PendulumFallacy of #rocketry:

https://en.wikipedia.org/wiki/Rocket#Pendulum_rocket_fallacy

Date: 2026 March 28
URL: https://apod.nasa.gov/apod/ap260328.html
Title: Robert Goddard and Nell

(No disrespect intended to Mr. Goddard. He was an epic pioneer, and the very best of us learn by making mistakes and analyzing the outcome to learn from them.)

#NASA #Astronomy #PictureOfTheDay #KSP #KerbalSpaceProgram

P.S., thinking about this some days later, I believe the APOD text was referring to the idea of keeping the center of mass ahead of the center of pressure as a means for atmospheric stability, not the self-righting "Pendulum Fallacy." The reason rockets aren't designed like this anymore is that automatic gimballing (and just plain ordinary fins, for that matter) are more than effective to maintain stability, without introducing the complexity of needing to pump fuel upwards against gravity/acceleration.

#pendulumfallacy #rocketry #nasa #astronomy #pictureoftheday #ksp

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-03-28 · 17:47 UTC

"To achieve a stable flight without the need for fins, the rocket's heavy motor was located at the top, fed by lines from liquid oxygen and gasoline fuel tanks at the bottom."

Umm, actually, no. That's not how that works. That's what he intended to have happen, and it sounds like common sense, but this is actually the classic #PendulumFallacy of #rocketry:

https://en.wikipedia.org/wiki/Rocket#Pendulum_rocket_fallacy

Date: 2026 March 28
URL: https://apod.nasa.gov/apod/ap260328.html
Title: Robert Goddard and Nell

(No disrespect intended to Mr. Goddard. He was an epic pioneer, and the very best of us learn by making mistakes and analyzing the outcome to learn from them.)

#NASA #Astronomy #PictureOfTheDay #KSP #KerbalSpaceProgram

P.S., thinking about this some days later, I believe the APOD text was referring to the idea of keeping the center of mass ahead of the center of pressure as a means for atmospheric stability, not the self-righting "Pendulum Fallacy." The reason rockets aren't designed like this anymore is that automatic gimballing (and just plain ordinary fins, for that matter) are more than effective to maintain stability, without introducing the complexity of needing to pump fuel upwards against gravity/acceleration.

#kerbalspaceprogram #ksp #pictureoftheday #astronomy #nasa #rocketry

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-03-28 · 17:47 UTC

"To achieve a stable flight without the need for fins, the rocket's heavy motor was located at the top, fed by lines from liquid oxygen and gasoline fuel tanks at the bottom."

Umm, actually, no. That's not how that works. That's what he intended to have happen, and it sounds like common sense, but this is actually the classic #PendulumFallacy of #rocketry:

https://en.wikipedia.org/wiki/Rocket#Pendulum_rocket_fallacy

Date: 2026 March 28
URL: https://apod.nasa.gov/apod/ap260328.html
Title: Robert Goddard and Nell

(No disrespect intended to Mr. Goddard. He was an epic pioneer, and the very best of us learn by making mistakes and analyzing the outcome to learn from them.)

#NASA #Astronomy #PictureOfTheDay #KSP #KerbalSpaceProgram

P.S., thinking about this some days later, I believe the APOD text was referring to the idea of keeping the center of mass ahead of the center of pressure as a means for atmospheric stability, not the self-righting "Pendulum Fallacy." The reason rockets aren't designed like this anymore is that automatic gimballing (and just plain ordinary fins, for that matter) are more than effective to maintain stability, without introducing the complexity of needing to pump fuel upwards against gravity/acceleration.

#pendulumfallacy #rocketry #nasa #astronomy #pictureoftheday #ksp

R.L. Dane :Debian: :OpenBSD: :FreeBSD: 🍵 :MiraLovesYou: @[email protected] · 2026-04-18 · 16:21 UTC

I just realized why I like Static Site Generators so much.

I'm able to publish the web without using a web browser.

That's kind of like being able to be a proctologist and helping people, but without actually ever having to see a butt.

😂

#TheWebJumpedTheShark

#SSG #SSGs #StaticSiteGenerator #StaticSiteGenerators #StaticSiteGeneration