incremental compilation

A five-minute SuperMemo demo of incremental reading: importing a Wikipedia article on nutrition, extracting passages, making cloze deletions and finishing the item. It lists the keyboard shortcuts used.

A 1993 VHS demo of Lucid Energize, a database-backed, incremental C/C++ programming environment built on XEmacs. It shows features like incremental compilation, live debugging and hyperlinked output.

A compilation of hover tests of exoatmospheric kill vehicles, the small rocket-propelled interceptors used in missile defense, including early prototypes from the late 1980s. It shows the vehicles maneuvering with thrusters in test facilities.

A short compilation of aircraft flying through clouds and moist air, showing the spiraling vortices that wings leave behind. The footage shows wingtip vortices and the way planes disturb cloud layers.