Seismic waves | Earth geological and climatic history | Cosmology & Astronomy | Khan Academy

[@medicineman1202]

I learned more from an eight minute video than I did in
two days of class lecture...thanks a lot!!!

[@saveUyghurs]

Ya, cause he’s a more effective teacher. He speaks clearly and in detail

[@animationspace8550]

@ meaning he learned more you bogus fruit. Sal is a more engaging teacher than most in general.

[@Felipe-tw1wg]

8:04 just a little glitch in the matrix haha
Such a good video, I understood my 1 hour lecture in under 9 minutes, love this videos.

[@rajeevnaik3877]

There are ton of videos/animations/lectures on youtube that show these waves who basically tell stuff printed in textbooks or animate them but nothing comes closer to the details in this video. Sal is just brilliant. Once in a millenia kind of guy.
Actually showin the direction of P and S waves from bottom to top is the most important detail that all other videos missed. Amazing

[@pithikoulis]

cool videos Sal! I was just watching your video on the binomial theorem and now for no reason I got some new knowledge on S-waves and earthquakes :D

[@faeries_Wear_Boots]

Khan University I love you! Again, have successfully helped me understand things my brain could wrap around before, now understand! Thank you!

[@CUINBOWL07]

Hey...where are u from

[@CUINBOWL07]

This topic is taught under which subject in your country or any place where you live

[@PonquecitoMortal]

I love this kind of explanations, thanks

[@VAA1962]

Great job!!!! thank you very much. My little girl now has full understanding of the waves (thanks to you).
Thanks again :)

[@bonnieaakermann6312]

Thankyou this video was extremely useful in my assessment

[@ihavenomouthandimustscream1303]

This easier to understand than my textbook. :)

[@furrycannedcheese]

Very Very helpful! THANKS SO MUCH!! :D

[@cjendjen]

Dude you are the bomb

[@joshuavolfson2182]

Thanks, you really helped me better understand the material on my test. Next time I'm stuck I'll be sure to come here, and tell my friends about you. Thanks :)

[@bowanida]

Thank you! It's really great lecture

[@snowmanvcz6502]

This is my Grade Savior
I passed my exam cause of this

[@RAMOFFICIALF]

5:24 I have a doubt if we hit the rock as shown and do to emense pressure the rock gets off then
Please give the answer

[@cocomelon1239]

Datika Gaming Fan Club I didn’t get ur question?

[@benreece7640]

You could use a Pool Noodle. Those floatation devices that look like a day glow two meter noodle. You can shake your noodle and make waves in the noodle, or you can push the noodle for those fast in line of material waves.

[@prakalpbinzade2809]

Thanks so much

[@peacefulword]

what don't you know, i mean seriously dude

[@JayDalisay]

Jen Smith I was thinking the same thing!!!!!!!

[@jakepauljakepaul-cz6up]

Nice👍😃

[@insaniat123]

Just wow

[@mashamukutmoni1452]

hmm interestin

[@nataleighhoban3145]

Great vid for 9 sc 2....Khan academy!

[@lovelylevi3889]

tysm

[@tanjo4]

ty

[@imteyazansari8396]

Love wave_make you moving left & right.😉

[@brownclorox]

Hope you don't mind me asking, but what are your credentials?
Are you a P.E. in Civil Engineering or a Structural Engineer? Seismologist? Geologist?
Thanks!!

[@SpectrumSplit]

+Luis Vazquez Actually he graduated from MIT. He got PhD. in Physics, Chemistry, Biology and several fields. So, that's why he have a strong background about most of Science Fields.

[@solomonherskowitz]

@@SpectrumSplit so he got 4 PhDs?

[@raduwa17]

thank you! :D

[@leclercj764]

If i had a cross section of water if I had a cross section of water if I had a cross section of water

[@freezinganimenz7835]

i think i'll do well in my geography test now

[@faeries_Wear_Boots]

+Thunder gamers23 Haha same! Khan University rocks!

[@tobicoker3866]

Even after 4 years his videos are still watched.

[@iqtidarrahman2148]

Tobi Coker 6 years

[@randhyLeksu7288]

Yeah yeah yeah!!

[@emperortgp2424]

Even after 8 years.

[@leibnizth]

8 years later 😌

[@mysmallcap]

It will be 10 years in February.

[@Invaderzerg]

what about a seismic wave travelling in a steel beams, originated from nuclear underground blast? can that turn the steel into dust?

[@mrheem1063]

who is watching in 2017

[@caderaid441]

Fa Feeti Everyone that was watching in 2018...

[@joshuavolfson2182]

Im watching in 2019

[@sharathgowdas.p2003]

goood

[@shrutitirthabhattacharjee2007]

While I was watching this , an earthquake happened in my area.
Date : 8th October 2021
Time : 12:00am

[@kimsmith1361]

The pistol shrimp creates a sonic boom under water to stun its pray using p wave.

[@ShineOnWithStefanie]

2024 here 🧜🏻‍♀️

[@lokynokey4822]

What I wanna do in this video...

[@WaterMelwn]

My class thought it was boring :/