some_modes command

videogen

Create arbitrary-res modelines using hardware parameters

Videogen is a small but nice utility to create modelines you can insert into your xorg.conf and fb.modes files.
also showing kde-config-phonon-xine

kde-config-phonon-xine

advanced Phonon Xine configuration

text-based genealogy software

lifelines

text-based genealogy software

LifeLines is a genealogy program that runs on UNIX systems in text mode. It maintains genealogical records (persons, families, sources, events and others) in a database, and generates reports from those records.
file manager for GPE

gpe-filemanager

file manager for GPE

Main application window

gperiodic

periodic table application

GPeriodic is a small X/GTK+-based program which allows you to browse through a periodic table of chemical elements, and view somewhat detailed information on each of the elements. 118 elements are currently listed.
Shows how objects moving at relativistic speeds look like

lightspeed

Shows how objects moving at relativistic speeds look like

Light Speed! is an OpenGL-based program which illustrates the effects of special relativity on the appearance of moving objects. When an object accelerates past a few million meters per second, these effects begin to grow noticeable, becoming more and more pronounced as the speed of light is approached. These relativistic effects are viewpoint-dependent, and include shifts in length, object hue, brightness and shape.