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Mantle , A sharp structural discontinuity separates the core from crust , and the
next outer shell , the mantle , and the density drops Mohoro- abruptly to less than
5.5 , which is less than the density vičić Dis- of iron ( 7.9 ) . The density of the ...
Type ( 3 ) , the spring balance ( called a gravimeter ) , is the most sensitive for
measuring small differences in gravity from place to place , less than about one
cm / sec ?, or 1,000 milligals . Gravimeters are , however , subject to systematic ...
Hence women vote less than men , American blacks less than whites , and
working class people less than those of the middle class . Young people who
have just turned of age , and have therefore just been enfranchised , are less
likely to ...
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LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review