The mohorovicic seismic discontinuity | Cosmology & Astronomy | Khan Academy

The Mohorovicic Seismic Discontinuity- boundary between crust and mantle (or Moho). Created by Sal Khan.

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[faeries_Wear_Boots]

This is the second time this week I was questioning a subject that I was studying and I googled online to aquire the answer and I was sent to you! I recognized your voice from the first study guide I followed this week. You are amazing and I agree with Lord Random you do give excellent explainations! You have just recieved a dedicated subscriber! Thank you so much!

[jen]

perfect explanation! i'm having a class test tomorrow and this helped me so much

[Iksbrown]

You completely butchered his name, but it's okay :D
Pronounce the "j" like a "y" - Andriya. The "č" and "ć" are pronunced like "ch" as in chocolate.

[unpopuIaropinion]

You sir just earned a new subscriber.
Thank you for the great explanation

[BeachGal]

We watched this in AP environmental science today because my teacher likes your enthusiastic description than what she would give.

[orcodrilo]

I was browsing for a a solution on pure mathematics about the set where a function is continuous being a countable intersection of open sets. And, of course, found something nothing related: this video. Yet I learned something about geology! Thumbs up!

[bijanmahata]

Excellent explanation. Khan academy never disappoints.

[TheGrapplingMonkey]

Will you also provide information why its more dence? You´ll have to go into mineralogy for that. I am looking forward to it.

[ConvivialCadaver]

i literally just clicked this to learn how to say Mohorovicic thanks

[ufamohorovicic]

Veliki HRVATSKI znanstvenik...Naš ponosan

[callie]

YOU GUYS HELP ME LEARN MOREEE! THANKYOU

[dustz]

Either this video or German wikipedia is wrong...wikipedia says the waves took suprisingly long, this video says it took suprisingly short for the waves to be registered !

[MilanKarakas]

Try to pronounce: Andriya Mohorovichich. Greetings from Croatia.

[SoulDragonWithFlow]

interesting. ive had to reaserch this for physics h/w. interesting that you said the waves travel faste in denser materials... wouldnt it be the other way around? speed of sound at sea levrl is apox 650-570 mph. Speed of sound at altitude is 740ish mph. I know waves can have higher aplitude is denser materials due to reifaction presure not being able to go below 0, but are you sure it travels faster?

[dragonfly]

it is true that the speed of the wave will change, decrease to be precise, in a denser medium. but at the same time, the path of the wave will change too. will not the later, combined with the former, render an effect: 'the time taken for the wave to reach a certain point will be the same'. ?

[stevenmarec]

Great video ! But I think there is a little mistake (or maybe an voluntary omission) : Isn't the crust under Zagreb about 55 km down because of the mountains, and not 35 km like mentionned (like an ordinary crust) ? =)

[Nony]

density does not increase wave velocity it slows it down look at the equations for p and s waves

[feelthefears]

I'm croatian and its hard to pronounce his name even for me :) In English it would be like Andrya Mohorovytsich

[telorinorico]

hi exelent video. i have a M.C homework.... how to get the moho... can you giveme some advices.

[anishgokhale]

I have a doubt. if the waves travelled through a denser material (mantle), thenthe dense material should offer more resistance to the waves slowing down its speed. But, here it is aid exactly the opposite that when the waves travelled through the dense material, its velocity increases. can someone explain me why and how this is possible.