Dave Horlick's Home Page

Astrophotography | Cakewalk | Comics & Visual Arts | Movies | Crafting | Software | Holiday Cards | Various | Family & Friends | Obligatory Random Links

Dave Horlick

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Here's a bunch of stuff I've made, and links to friends and other interesting things.

Recent Updates!


Hyattsville Astronomy Club's Solar System Gallery

A gallery of our best solar system images, including a recent one of Jupiter processed from video taken in my back yard.

Posted: 2014-03-09T13.28

Saturn from Hyattsville, Maryland on 2013-07-17 at 10:16 PM local time.

Stacked from 129 frames obtained by my brother and I using a 3x Barlow on our 254mm Dob, and a Canon EOS Rebel T3i camera in "3x digital zoom video" mode.

Posted: 2013-07-19T00:40:00


If I'd known you were coming, I'd have baked a cake.

Sea Otter
Izzy the Pirate
CAPT. Barnacles Bear
Ben Katz
Temple of Doom Rope Bridge
Ralph Wiggum
Cat Eating a Flower

Comics & Visual Arts

My Excellency, George Washington

The Founding Fathers are back, as robots.

Posted: 2010-06-17T00:00:00-05:00

DeviantArt page: My assembled visual artwork at DeviantArt.com


Three semiaquatic animals investigate their neighborhood/universe.

Updated: 2008-02-02T15:04:00-05:00

Gerard Gazelle

My comic strip from the Cornell Daily Sun

Updated: 2010-08-17T00:00:00-05:00


Action Puppet Theater #1

A short movie made in partnership with my brother.

Posted: 2011-05-29T20:26:00-05:00

Serious Ottershines

A large raft of sea otters in Monterey Bay, California.

Posted: 2011-04-28T20:26:00-05:00

Wolf in Wolf's Clothing, Segment 1

A short animated movie. (Flash Player or Quicktime 4+ required)


Kid Coaster

I built a working roller coaster segment in the basement!

Posted: 2019-04-04

Telescope Cozy

For my Celestron NexStar 102SLT Refractor. The whole setup fits comfortably within a $20 Gaiam Yoga mat bag!

Posted: 2015-06-26T00:00:00-04:00

TARDIS Roundel Combination Peg-/Bulletin Board

for the style and utility-conscious Time Lord!

Posted: 2013-05-28T00:00:00-05:00

Galactic Hitchhiker Towel

I bought two "Prepster" Green bath towels at Target and cut pockets out of one of them. I sewed them into the other, added buttons with button holes, and Presto, a towel to hold my sunglasses and copy of The Hitchhikers Guide to the Galaxy.

Posted: 2009-08-31T00:13:00-05:00

Updated: 2010-01-30


Interactive Fiction

GATOR-ON, Friend to Wetlands!

Will you be able to save the Florida Everglades from a giant robotic python? Requires a z-code intepreter such as Zoom (Max OS X | UNIX | Windows).

Posted: 2009-11-16T00:01:00-05:00

Desktop Applications

Spirited Array

A macOS application for de-pixelating and then whimsically re-pixelating small animated GIF's

Posted: 2018-08-07


Draws vector-based panels and word balloons of varying rectangularness, plus curved stems and merged ovals. For comics!

Screen Rodeo

An ancient Mac OS Classic game, similar to Surround! for the Atari 2600 console. Works on Mac OS X 10.4 and earlier.

Command-line Programs


Makes tiny pictures of the structures of text documents.


A rudimentary framework for modeling and converting amongst various calendar systems. Will post eventually.

TeeRex v1.30

A program to solve that awful dinnertime triangle game with the pegs. Now in Scala! Was demoed at the April 2012 meeting of Scala DC.

    o            *            *            o            o
   * *          * o          * o          o o          * o
  * * *        * * o        o o *        * o *        o o *
 * * * *      * * * *      * * * *      * * * *      o * * *
* * * * *    * * * * *    * * * * *    * * * * *    * * * * *
             (3,3)->11    (3,1)->3     (1,1)->7     (4,1)->1

    o            o            o            o            o
   * o          * o          o o          o o          o *
  * o *        * o *        o o *        o o *        o o o
 o o * *      o o * *      * o * *      * o * *      * o * o
* * o * *    * * * o o    * * * o o    * o o * o    * o o * o
(5,3)->11    (5,5)->9     (2,1)->7     (5,2)->3     (4,4)->11

    o            o            o            *        
   o *          o *          o *          o o       
  o * o        * * o        o o *        o o o      
 * o o o      o o o o      o o o o      o o o o     
* o o o o    o o o o o    o o o o o    o o o o o    
(5,4)->11    (5,1)->1     (3,1)->3     (3,3)->11

Updated: 2012-02-15


Extensible Stylesheet Language Templates are computer programs for doing assorted cool things with data stored in XML.


Splits out individual tracks from a TCX file exported from Garmin Training Center and a GPS unit. Intended for use in conjunction with tcx2kml.xsl. An alternate solution involving csplit that potentially makes more efficient use of memory can be found here, along with a discussion of the problem.


USB Input Remixes

A branch of tmk_keyboard that implements a series of fun "remixes" for mice, trackballs and MIDI controllers.

Posted: 2019-04-08

Holiday Cards



My list of incongruities in the Wizard of Oz.

Updated: 2006-04-19


To this day, the Jasow dropping mechanism remains my single contribution to the world of robotics.

Family & Friends

Matt Kirkpatrick

Matt Kirkpatrick's blog

Josh Fruhlinger

The Comics Curmudgeon: a wonderful newspaper comics deconstruction blog

Shani Warner ♥

Shani's flickr photostream

Updated: 2011-04-21T00:08:00-05.00

Robert Fleegler

Movie & TV blog

Posted: 2011-04-21T00:07:30-05.00

Jim Groves

awesome Is it Recyclable in Prince George's County? webpage

Posted: 2011-04-21T00:20:05-05.00

Obligatory Random Links

Copyright 2008 by Dave Horlick