7 zs: half-life of helium-9's outer neutron in the second nuclear halo.17 zs: approximate period of electromagnetic radiation at the boundary between gamma rays and X-rays.That is, it indicates how fast the individual can execute the mental operations needed by the task at hand.In turn, speed of processing is considered an index of processing efficiency.As the differences are measured in factors of 10, a logarithmic scale is applied.In terms of time, the relationship between the smallest limit of time, the Planck time, and the next order of magnitude larger is 10.The center of the face panel moves in and out to hold up the music books________________________________________________1886 J. Fischer 56 1/2 inch Upright Piano sn 74783, This piano was built in New York. Original player action parts do not function - need to be rebuilt Piano itself plays just fine. This pillar and heavy round corner design continued until the late 20s. ________________________________________________________________1911 Hamburg Steinway Model O Ebony 5 ft 10 in Parlor Grand Piano, GORGEOUS. This is not a bondo job cover-up piano like many ,000 rebuilt steinway Os out there that have been revived from the junk pile. The player action was rebuilt by Owen and Bunny Arnette in 2010. ____________________________________________________________1903 Kimball 53" Upright Piano, s/n 117541, Made in USA (Chicago), Antiqued Mahogany Finish, Textured plastic keytops made to look and feel like ivory.Keytops are original simulated ivory.______________________________________________________1946 Lester Betsy Ross Spinet Piano s/n 154523, Matching Bench, Mahogany Rounded front organ style keytops. By this time plastic keytops had been introduced and ivory keys were an upgrade. This piano has the mute action but no mute.1978 Universal Brand 50 inch Player Piano sn 8730, (These were over 00 in 70s) Made in USA, Oak finish, Stained glass face panel windows are lighted. Plays as a regular piano or as a player piano by both foot pumps or electric system. Pease made a nice instrument._____________________________________________________________1905 Crown 57 inch Upright Piano sn 33902 Made in USA (Chicago), Oak, refinished,4 Pedals. This piano was purchased in 1974 in Santiago, Chili from the original owner and then moved to Eagle, Idaho. Case was professionally refinished approximately 1994. New Steinway hammers, and new strings and tuning pins were installed here in Boise. The case was repaired and refinished by Jaks Stripping, Boise. _____________________________________________________________________ 1971 Story and Clark 39 Console Piano, Made in USA. _______________________________________________________________________ 1915 Grinnell Bros, Leonard 54" Upright Piano, s/n 14364, Made in USA (Detroit), Dark Tiger Oak Finish, New Keytops. Note that the family had dropped their "Leonard" old upright piano from a moving truck and broke the piano action. _______________________________________________________________Kawai MR380C Digital Piano, Very dark walnut finish, Bench included. This piano has all the standard digital piano voices, 3 pedals, transpose, metronome, midi connections, a full-length music desk, and a hard sliding key cover found on nicer models.

Mental chronometry is one of the core paradigms of experimental and cognitive psychology, and has found application in various disciplines including cognitive psychophysiology, cognitive neuroscience, and behavioral neuroscience to elucidate mechanisms underlying cognitive processing.

1912 Strohber Upright Piano s/n 26620, Walnut, (Made by Smith Barnes? Ivories look new again.______________________________________________________________________________________________________1914 Ivers and Pond Player Piano sn 56084 (Quality Boston Made Piano)55"tall, Mahogany Finish, Nice Matching Bench, Gorgeous Ivory Keys. Exterior of piano was professionally refinshed in Boise late 2004 with brown mahogany finish.

)57 7/8" Tall, 63" Long, 27" Deep, Brass Pedals, Major Veneer Issues on Ends______________________________________________1902 Sweetland Upright Piano s/n 22439, (Made by Cable Nelson? The player piano action was completely rebuilt in January 2005.

Mental chronometry is studied using measurements of reaction time (RT), which is the elapsed time between the presentation of a sensory stimulus and the subsequent behavioral response.

In psychometric psychology it is considered to be an index of processing speed.