The solar system—Some unsolved problems

✍ Scribed by G.F.S.

• Publisher: Elsevier Science
• Year: 1926
• Tongue: English
• Weight: 123 KB
• Volume: 202
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(26)91724-9

✦ Synopsis

UNDER-WATER ACOUSTICS.

635 waves are about a thousand times as long as the diameters of the molecules which scatter them:

Under water a lead shot is a conductor and an air cavity a reflector of sound. The exploration of under-water waves, particularly in the case of obstacles small in comparison with the wave-length, deserves further attention from those who are fortunate enough to be able to undertake it.