Zobrazeno 1 - 10
of 19
pro vyhledávání: '"E. M. Hafner"'
Autor:
Giovanni G. Fazio, E. M. Hafner
Publikováno v:
Journal of Geophysical Research. 72:2452-2455
Previous authors have reported several attempts to detect a solar γ-ray flux in the energy region above 50 Mev. Danielson [1960] placed an upper limit of 8 × 10−8 cm−2 sec−1 for photons with energy greater than 200 Mev, and Fichtel and Kniffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33bf9c922f0e265cb1466c7ea35ebc1d
https://doi.org/10.1029/jz072i009p02452
https://doi.org/10.1029/jz072i009p02452
Publikováno v:
IEEE Transactions on Nuclear Science. 10:10-14
The search for gamma radiation with energy greater than 50 Mev from extraterrestrial sources has resulted in some of the most interesting and most difficult balloon and spacecraft experiments. The present status of this search is reviewed. The first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63f95f62bbba2189b5e854356533fe37
https://doi.org/10.1109/tns2.1963.4315446
https://doi.org/10.1109/tns2.1963.4315446
Autor:
E. M. Hafner
Publikováno v:
Nature. 188:778-781
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce95b3c86faf2fe0f65b284f26ca8d6e
https://doi.org/10.1038/188778a0
https://doi.org/10.1038/188778a0
Autor:
Susan Presswood, E. M. Hafner
Publikováno v:
Science. 149:503-510
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0cc31ee0eb7d85218434c6ae4565505
https://doi.org/10.1126/science.149.3683.503
https://doi.org/10.1126/science.149.3683.503
Publikováno v:
Physical Review. 104:449-456
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c2605bbfe60082d4e93d50117ad30a8
https://doi.org/10.1103/physrev.104.449
https://doi.org/10.1103/physrev.104.449
Autor:
E. M. Hafner, Giovanni G. Fazio
Publikováno v:
Review of Scientific Instruments. 32:697-702
A directional Cerenkov counter has been developed for detection of energetic gamma rays from balloons and satellites. It is sensitive to photons whose directions lie within a 10° cone. It is completely insensitive to backward fluxes and almost compl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6aa7b034654678a730358426e685a5a
https://doi.org/10.1063/1.1717472
https://doi.org/10.1063/1.1717472
Publikováno v:
Physical Review Letters. 10:364-368
The technique used to obtain data on charged particles and gamma rays is described along with corrections for changes in latitude during the two flights. Models that permit comparison of data obtained in different geometries are discussed. Analysis g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b59337164924eb8711fc25f5a82d1bb
https://doi.org/10.1103/physrevlett.10.364
https://doi.org/10.1103/physrevlett.10.364
Autor:
O. M. Bilaniuk, E. M. Hafner
Publikováno v:
American Journal of Physics. 30:615-618
An electronic analog computer, capable of displaying two circular motions and the epicycle derived from them, is described. It is inexpensive and easy to build. As a demonstration lecture apparatus it is useful in discussions of elementary astronomy,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7f05ab142d7176580785193eebd6c86
https://doi.org/10.1119/1.1942143
https://doi.org/10.1119/1.1942143
Autor:
E. M. Hafner
Publikováno v:
Comparative Studies in Society and History. 11:385-397
We are often told, and it is easy to believe, that the images of abstract art are not drawn from the real world. In the most conventional view of the modern school, abstract painting is a search for free expression of the artist's own vision. The non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2079648b0b480316eb22c64da64b327f
https://doi.org/10.1017/s0010417500005442
https://doi.org/10.1017/s0010417500005442
Publikováno v:
American Journal of Physics. 33:750-752
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1937d0c54ceb8e9e0bdd32a1d6a334c
https://doi.org/10.1119/1.1972241
https://doi.org/10.1119/1.1972241