O'Reilly logo

Fundamentals of Physics by David Halliday, Robert Resnick, Jearl Walker

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

images

images

How could the submarine’s depth be determined from measurements made very far away?

The answer is in this chapter.

In August 2000, as Russia’s Northern Fleet conducted exercises in the Barents Sea north of Russia, the nuclear submarine Kursk mysteriously sank. As word of the loss spread, seismologists from around the Northern Hemisphere realized that, on the day the Kursk sank, they had recorded unusual seismic waves originating in the Barents Sea. Analysis of the data suggested the reason the submarine sank, andmore surprisingit also revealed its depth.

16-1  What Is Physics?

One of the primary subjects of physics is waves. To see how important waves are in the modern world, just consider the music industry. Every piece of music you hear, from some retro-punk band playing in a campus dive to the most eloquent concerto playing on the Web, depends on performers producing waves and your detecting those waves. In between production and detection, the information carried by the waves might need to be transmitted (as in a live performance on the Web) or recorded and then reproduced (as with CDs, DVDs, or the other devices currently being developed in engineering labs worldwide). The financial importance of controlling music waves is staggering, and the rewards to engineers who develop ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required