ScienceJohn Michels (Journalist) 1941 |
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Page 23
... measurements were made with a Spekker photometer and a Hilger medium quartz spectrograph . A control consisting of a ... measure the transmission with a quartz microscope and photocell , in which case the transmission was ob- served to ...
... measurements were made with a Spekker photometer and a Hilger medium quartz spectrograph . A control consisting of a ... measure the transmission with a quartz microscope and photocell , in which case the transmission was ob- served to ...
Page 314
... measurements . For example , the most accurate wave - length measure- ments in 1913 were those of Moseley , with an accuracy of about 1 per cent . By a brilliant succession of im- provements in methods , design , inventions and tech ...
... measurements . For example , the most accurate wave - length measure- ments in 1913 were those of Moseley , with an accuracy of about 1 per cent . By a brilliant succession of im- provements in methods , design , inventions and tech ...
Page
... MEASURE TINY SURFACES IF you wanted to measure the surface area of a floor and you lacked both tape and yardstick , you could still do the job if you had a large enough bag of marbles . And if the surface happened to be uneven and full ...
... MEASURE TINY SURFACES IF you wanted to measure the surface area of a floor and you lacked both tape and yardstick , you could still do the job if you had a large enough bag of marbles . And if the surface happened to be uneven and full ...
Contents
VOL | 2 |
G A Prophecy Fulfilled 350 | 17 |
Pellagra Urine in L E HOLT JR and V A NAJJAR | 20 |
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