摘要:

Careful observation of the flash period of the artificial satellite, 1958 Delta I (the rocket ease of Soviet Sputnik III), was made at Ames, Iowa, from July 21 through November 29. The flash period increased steadily during this time until approximately one-half week before fall-in. This indicated a slowdown in the rate of tumbling of the rocket case. During the last few days of life the flash period decreased, indicating a speedup in tumbling rate. What causes this change? Future satellite observers are urged to observe this phenomenon to see if it is general.

ISSN:0002-9505    

DOI:10.1119/1.1934977

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

摘要:

This paper reviews the influence of the environment on the emission and absorption of radiation energy, both elastic and electromagnetic. Attention is called to the loading of wave sources which is independent of frequency. Of those influences which are frequency dependent, resonance and relaxation are the most important. These are compared and their similarities and differences noted. Numerous illustrations are presented.

ISSN:0002-9505    

DOI:10.1119/1.1934978

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934981

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934982

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934983

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934985

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934987

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934988

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1934989

出版商:American Association of Physics Teachers    

年代:1960

数据来源: AIP