During the years 1930-32 there appeared three new deflection values of elm, and one new spectroscopic value. All four determinations were mutually consistent and apparently of high accuracy. From them I deduced2 1.75940.001 as the best value of e/m. In other words, the 1929 discrepancy had disappeared, and the error had been shown to lie in the 1929 deflection value. In the succeeding two years three new values of e/m were obtained, all by chance being just 1.757, and in 1936 I gave3 1.7576240.00026 as the most probable value. It appears now that most of these new "low" values repre- sented preliminary results only, and the final values now available are appreciably higher. In fact Dunnington,4 in connection with his own beautiful work on elm, gave 1.7584±0.0003 as the most probable value. He found, however, that a discrepancy of 0.0016 still existed between the weighted averages of the'spectroscopic and the deflec- tion measurements, and this, although only one-fifth of the 1929 discrepancy, was still, as a result of the greatly increased accuracy of recent work, almost three times the sum of the assigned probable errors. At the present time there are available ten precision values of e/m, six
Physical Review – American Physical Society (APS)
Published: Dec 1, 1938
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera