. The Earth beneath the sea : History . 200 300 Frequency in sec' lb' 400 500 Fig. 1. Low-frequency part of the Fourier energy spectiuui of an explosion at 500-ft depth. (After Raitt, 1952.) slowly moving ship can reach a safe distance away. The damaging effects are accentuated in shallow w^ater, and the larger charges must often be fired at greater depths than is desirable. At ranges short of that at which the first refracted wave is detected, a series of small charges is frequently fired to get a w'ide-angle reflection profile; in this case the amount of energy is usually more than adequate,
Image details
Contributor:
The Bookworm Collection / Alamy Stock PhotoImage ID:
MAAT7CFile size:
14.3 MB (187 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
2525 x 1979 px | 21.4 x 16.8 cm | 8.4 x 6.6 inches | 300dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
. The Earth beneath the sea : History . 200 300 Frequency in sec' lb' 400 500 Fig. 1. Low-frequency part of the Fourier energy spectiuui of an explosion at 500-ft depth. (After Raitt, 1952.) slowly moving ship can reach a safe distance away. The damaging effects are accentuated in shallow w^ater, and the larger charges must often be fired at greater depths than is desirable. At ranges short of that at which the first refracted wave is detected, a series of small charges is frequently fired to get a w'ide-angle reflection profile; in this case the amount of energy is usually more than adequate, even with quite small charges, and efficiency is sacrificed so as to obtain a less complex arrival by firing the charges so near the surface that