At the regular grotto meeting of 16 March 2021 I gave a presentation comparing various kinds of cave lights. This post has links to the presentation file and to the data files that I collected.

The data files are plain text, comma-separated values. They can be imported to any spreadsheet or graphing program. I used https://labplot.kde.org/ to create the graphs in the slide show.

The first column in the data files is elapsed time in seconds. The second column is the brightness in lux.

The file names read more

At the regular grotto meeting of 16 February 2021 I gave a presentation comparing the capacity of various kinds of batteries. This post has links to the presentation file and to the data files that I collected.

The data files are plain text, comma-separated values. They can be imported to any spreadsheet or graphing program. I used https://labplot.kde.org/ to create the graphs in the slide show.

The first column in the data files is elapsed time in seconds. The remaining columns should be clearly read more

A remembrance by Shawn Williams.

It’s January 23rd, 2020 and we’re all struggling with the words this morning…

It’s going to be very difficult moving on without her spirit. The grief is as difficult as her light was bright.
This earth has lost a soul whose light, love and laughter radiated to touch so many. Her hats were many! Adventurer, Trail Builder, Campfire Aficionado, Dancer, Camp Chef, Cave Explorer and Restorer, Float Tripper, Wine Connoisseur, Cheer Leader, Trip Leader, read more

Welcome!  This is the new Kansas City area Grotto web site.  We moved our hosting to a new provider which gives us much more flexibility, and also makes it far easier to post updates on the site.