PICKETT, Alhambra, California / USA (1972) ***************************************************************** S C A L E S of the W O O D E N T E A C H I N G SLIDE RULE ================================================================= Front Side Back Side ================================================================= K X3 LN lnX A X2 DF πX ----------------------------------------------------------------- B X2 CF πX ST arc(0.01X) CIF 1/πX T tan(0.1X) ; cot(0.1X) S sin(0.1X) ; cos(0.1X) CI 1/X C X C X ----------------------------------------------------------------- D X D X DI 1/X DI 1/X L lgX REMARKS: ================================================================= The teaching slide rule »N1010-ES« was made of bad composite wood (*) !! During a demonstration, the SLIDER broke in the middle ... ... Repair: GLUED with a supporting piece of SheetMetal Historical Remarks ... impressum: ***************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 07/20/23 |