Sonar Technology and Acoustic Shadows

James, a former Navy sonar technician, said that modern sonar could

monitor objects over one thousand miles away and that there was no ability for a

submarine to hide behind a supposed curvature acoustic shadow.

Since then, three other technicians have confirmed the

same, that everything

related to sonar is flat and there is no acoustic earth curvature

shadow. Even Wikipedia recognizes that sonar can travel over one thousand

miles. Acoustic shadows are a real thing, but apparently the curvature refuses to

make one. Article from the Daily Mail, a whale's

song can be heard by another whale four thousand miles

away. A humpback whale singing in the Caribbean,

for

example, can be heard by a fellow whale off the

west coast of Ireland more than

four thousand miles away. Eighty-foot-long fin whales,

second only in

size to the blue whale, can make low-frequency moaning sounds

beyond the range of

human hearing that also travel thousands of miles.

Checking the curvature drop on engineering software.

Yes, this is verified by AutoCAD. The curvature drop at four thousand

miles is one thousand six hundred sixty-nine miles.

A target hidden height of one thousand six hundred sixty-nine miles.

That's one huge acoustic shadow.

The accuracy of the alleged target hidden height is confirmed by this earth

curvature calculator as well. But let's check to see how tall that

supposed earth bulge would be between those two whales four thousand miles

apart.

According to this earth bulge height calculator, there should be a earth

bulge height between those two points that's four hundred

ninety-five miles tall. Where is the acoustic shadow from

this unbelievably tall mountain? It doesn't exist.