GRG 301K Lecture Notes - Lecture 1: Daniel Gabriel Fahrenheit, Anders Celsius, Fahrenheit
Document Summary
Fahrenheit scale: widely used in the u. s, gabriel daniel fahrenheit (1714, based on mercury-in-glass ther(cid:373)o(cid:373)eter (cid:271)ased o(cid:374) a (cid:862)zero(cid:863) poi(cid:374)t (cid:894)freezi(cid:374)g poi(cid:374)t: (cid:1007)(cid:1006) degrees f, other points: 98. 6 degrees f = human body temperature. (cid:1006)(cid:1005)(cid:1006) degrees f = (cid:449)ater"s (cid:271)oili(cid:374)g poi(cid:374)t/stea(cid:373) poi(cid:374)t. Celsius scale: used mostly worldwide (outside of u. s. , anders celsius (1742, de(cid:448)ised usi(cid:374)g a de(cid:272)i(cid:373)al s(cid:272)ale a(cid:374)d (cid:862)zero(cid:863) poi(cid:374)t. (cid:862))ero(cid:863) poi(cid:374)t o(cid:374) the c s(cid:272)ale is (cid:1004) degrees c, other points: 37 degrees c = human body temperature. (cid:1005)(cid:1004)(cid:1004) degrees c = (cid:449)ater"s (cid:271)oili(cid:374)g poi(cid:374)t (cid:894)at sea le(cid:448)el(cid:895) *** a degree of celsuis is larger than a degree of fahrenheit by a factor of 1. 8*** Kelvin scale: used in scientific formulas/applications, lord kelvin (william thompson)/1848, the (cid:862)zero(cid:863) poi(cid:374)t is the (cid:272)essatio(cid:374) of (cid:373)ole(cid:272)ular (cid:373)otio(cid:374) (cid:894)there are (cid:374)o (cid:374)egati(cid:448)e (cid:374)u(cid:373)(cid:271)ers of the kelvin scale, other points: 273 degrees k = freezing point of water. 373 degrees k = boiling point of water.
