I have been studying videos of swimmers and find what was once called the "S" stroke has almost disappeard.
I have noticed that flyers use it. But crawl swimmers have modified it so much that it is almost gone.
Has it been replaced completely or was it an optical illusion? Did underwater film show us it did not exist.
The speed of sound in air is ~770 miles per hour (or 344 m/s) (depending upon relative humidity and temperature) and significantly faster in water.
Yeah, about 1,500 m/s at standard temp and pressure. That would be one fast torpedo!
Here's an article about the supercavitating torpedoes: www.popsci.com/.../de669aa138b84010vgnvcm1000004eecbccdrcrd.html
I don't think the torpedoes are quite that fast, but it does mention the Navy have successfully launched a supercavitating projective that surpassed the speed of sound underwater. Pretty amazing!
The speed of sound in air is ~770 miles per hour (or 344 m/s) (depending upon relative humidity and temperature) and significantly faster in water.
Yeah, about 1,500 m/s at standard temp and pressure. That would be one fast torpedo!
Here's an article about the supercavitating torpedoes: www.popsci.com/.../de669aa138b84010vgnvcm1000004eecbccdrcrd.html
I don't think the torpedoes are quite that fast, but it does mention the Navy have successfully launched a supercavitating projective that surpassed the speed of sound underwater. Pretty amazing!
