How Sonar Works 

Very clearly demonstrated, making this subject easy to understand. I was particularly impressed by the way you drew over the rock at the beginning of the clip, showing how sonar reflections arriving at different time at the receiver could be used to draw a three dimensional image of the rock itself. I thank you for an excellent contribution to peoples understanding of this science. Mr Dorian Stonehouse.

How is sonar used accurately if Earth's curvature drops at 8in squared per mile?

Wow, this is impressive. I came here to understand how sonar is used to trace ship wreckage on the seabeds. I had watched several videos prior to this but was totally confused till i landed on this video. Thank you sir for the well elaborated and informative video. RIP Emiliana Sala

Sound velocity changes with temp? Salinity? Not addressing these issues

Thanks Ziggy - this explanation of sonar is clear and uses great examples/diagrams. Well done and keep up the good work! Hopefully will see more videos from you in the future.

ice expands when it's ice right and takes up more area than liquid water. so if the ice caps melted, wouldn't the water level of the oceans go down?

thanks! you made this topic very easy to understand!

great video. I enjoyed it and learned a lot about sonar.

Very well made, thank you.

Thanks very much. Very interesting and informative.

Since dolphins and whales use a form of sonar, does that mean they can actually visualize the sound waves they receive back?

Do they still use underwater cables anymore since we have satellites now?

you seem to be missing the most important part of this - the work of paul langevin's crystal detector -what makes this ALL POSSIBLE

very well explained , thank you sir .

Actually the speed of sound In water is not constant. You have to account for temperature, salinity, and depth.

Thanks, this video helped me alot!

Good one sir

Well done Sir !!

👍👍👌

great video

Very nice video

Didn't know Michael Mckean was interested in sonar

lit fam

nice

terrible video

terrible vidoe