Abstract: The invention is a notebook having a cover and a selectively openable and closable binder mechanism which can support a plurality of pre-punched, loose-leaf sheets.

Abstract: A vision and hand/eye coordination testing machine includes a front panel sub-divided into a grid-like array. Each array position is either a lamp position or a dummy position, the two being visually indistinguishable. Panel lamps are illuminated in one of three alternative modes, namely: a pursuit mode wherein lamps are illuminated according to a prescribed continuous pattern and the subject must follow the pattern by moving his/her eyes; a saccadic hand/eye mode wherein the subject focuses on a centrally located alternating fixator lamp and actuates a switch at array lamp positions; and a second hand/eye mode, similar to the saccadic mode, but the fixator lamp remains off. Timely switch actuations are counted and actuate respective indicators in a remote monitoring unit. In both hand/eye modes the lamps are illuminated in a random or other sequence unrelated to lamp position.

Abstract: A detection device comprising cooperating retro-reflective and fluorescent members are disposed on a self-adhesive incorporating a conductive metal radar reflecting layer. Nautical application to the sails of sailboats and the like are disclosed.

Abstract: A countdown timer designed for counting down predetermined intervals of time and periodically announcing the progressive elapse of the countdown period thru the use of a voice synthesizer. The time interval between the spoken announcements is decreased as the end of the period approaches. An automatic restart period is incorporated which recycles to a predetermined time to begin the countdown again the number of the restart cycle being counted down is displayed.