Yeah he's definitely using a drawing tablet. It's just that whatever art program he's using isn't changing the cursor. Actually wait if you look closely it _is_ changing it, but the recording software is still capturing the regular cursor. But that's just a guess
One correction to make here: those bright orange thrust plumes are coming from the white solid fuel rocket boosters on either side, not the liquid H2/O2 thrusters on the Space Shuttle itself. Those are dubbed the SSME's (Space Shuttle Main Engine) and burn with a nice blue flame that isn't very long.
I need to correct you. It's not "solid fuel", as you state. [He also mistakenly refers to it as "rocket fuel" in the video] It's correctly referred to as "composite propellant" because fuel + oxidiser = propellant. You are correct about the fact that the liquid oxygen and liquid hydrogen being channelled into the SSME which is attached to the actual shuttle though and the composite propellant is stored in the SRBs.
I have come to the conclusion that either Sal Khan is one the smartest polymaths in the world or he figured a way to get hundreds of subject matter experts with the same exact voice to teach different subjects for him...
Strange how chemical reactions are described without regard to energy as if energy is of no significance. Ions they keep popping up as if electrons are freely interacting on their own. Solution somehow means water, aqueous has what role in reactions? Best lectures I have seen yet is Linus Pauling Lecture: Valence and Molecular Structure. (1957). Next lesson.
point: the big white rocket fire stuff that comes out of the side boosters is actually not power by burning oxygen and hydrogen. those are solid-fuel boosters. The oxygen and hydrogen actually power those tiny little blue flames at the bottom of the main space shuttle
Probably a year late, but yeah those large plumes of fire you see are not produced by Liquid Hydrogen, or Liquid Oxygen. That is actually produced by the SRB (Solid Rocket Boosters).
If the colour of the paint comes from pigments (which physically reflect certain wavelengths and therefore appear to have a certain colour to your brain) then no, it's a matter of physics.
In a complete combustion reaction, fuel and oxygen are the reactants and the products are carbon dioxide and water. These two products cannot react to reform the fuel and oxygen, so the reaction is irreversible.
Wait, so the shuttle makes water instead of whatever nasty shit comes out of my car? Does that mean the smoke coming out of it isn't even really smoke, but steam?
Sort of. The engines on the space shuttle itself produce water. The solid rocket boosters on the side, however, don't burn hydrogen. They burn ammonium perchlorate composite propellant, which produces more than just water. Look up ammonium perchlorate composite propellant to see the chemistry in detail.
Anyone else notice that he is a great artist?
Who else is here cause they're about to get finessed by chem tomorrow👀
me
khwezi c I’m telling you bro 😂
No its on THURSDAY
In 30 minutes...
Andreas Yul Kim in 16 minutes...
Every time I watch his videos, I wonder “how can he write and draw so well using a mouse?!”
he's prolly using a pen
Yeah he's definitely using a drawing tablet. It's just that whatever art program he's using isn't changing the cursor. Actually wait if you look closely it _is_ changing it, but the recording software is still capturing the regular cursor. But that's just a guess
SAME AHHA
because he’s kira
same!
Your videos are so good and I'm learning new things by the second as I am only in year 7
Nice job bud
hehe im doing that right now ♡︎
I’m yr8 and still don’t know anything
I'm only in yr 6 and I understand everything
0:17 "without chemical reactions, we would have no life". 🔥🔥🔥🔥🔥🔥🔥🔥
Or wifi
What a great chemistry teacher! Let’s just hope he doesn’t get lung cancer when he turns 50!
Please tell me y’all understand
One correction to make here: those bright orange thrust plumes are coming from the white solid fuel rocket boosters on either side, not the liquid H2/O2 thrusters on the Space Shuttle itself. Those are dubbed the SSME's (Space Shuttle Main Engine) and burn with a nice blue flame that isn't very long.
Killjoy
I need to correct you. It's not "solid fuel", as you state. [He also mistakenly refers to it as "rocket fuel" in the video]
It's correctly referred to as "composite propellant" because fuel + oxidiser = propellant.
You are correct about the fact that the liquid oxygen and liquid hydrogen being channelled into the SSME which is attached to the actual shuttle though and the composite propellant is stored in the SRBs.
chawkzero I have no clue what u said
Abdul M. Ismail bruh
@@abdulmismail that's because you are smart
this is such a beautiful, simple, and clear explanation
I have come to the conclusion that either Sal Khan is one the smartest polymaths in the world or he figured a way to get hundreds of subject matter experts with the same exact voice to teach different subjects for him...
2:03 that's what she said
sigh this is why we cant have anything nice 😓
You explain it so well! 👀
this video describe it better than my book and teacher ever could 🤣🤣🤣
Had to watch this for chemistry 😁
I love the way you teach ^^, thank you, God bless you.
Anyone in Eighth Grade?
Yes, Monika.
Yes Deepika
I’m in seventh
im in 10th
Ya I’m in 8th 🥄
Strange how chemical reactions are described without regard to energy as if energy is of no significance. Ions they keep popping up as if electrons are freely interacting on their own. Solution somehow means water, aqueous has what role in reactions? Best lectures I have seen yet is Linus Pauling Lecture: Valence and Molecular Structure. (1957). Next lesson.
what is the program you use for drawing that
He uses SmoothDraw 3 (free) for the drawing and Camatasia (Paid membership of 200 Dollars [Pretty Pricey]).
Very good real world application to that in our bodies there are countless chemical reactions taking place.
Khan Academy is a great help
Excellent video!
Ikr
Yep great teacher and delivers the material in an easy to grasp way.
watched and am very intrigued
Wow, I love it. Thank you !
Really like the way how Sal explains.
Good knowledge, SIR!
Thankss..
point: the big white rocket fire stuff that comes out of the side boosters is actually not power by burning oxygen and hydrogen. those are solid-fuel boosters. The oxygen and hydrogen actually power those tiny little blue flames at the bottom of the main space shuttle
I am totally satisfied... ❤️
What remains constant during a chemical reaction?
@Keren Zadka holy crap that was 8 month ago.
What about now?@@andrewli8173
Hey ppl coming from google classrooms 😔
Staxxx Da Goat wasss uppp
zoom
@Suven Dhakal same
this helped me a lot. thank you
😒😒😒😒😒😒
this is explained so well
2018 anyone
Me
Zachary Games crying over chem? yes
ye boi
No 2019
2020 hihi
how does he draw so well?
thank you for helping me sir!!!!!
Excellent videos
REMMY BOYZ THEY KNOW US
thank you!
sub to pyrocynical. He is
an amazing science too. Hes not as known but he makes amazing and mindblowning science videos
I feel like Walter White watching this
please tell me. . .
how do u have so good handwriting?
i hear the mouse clicks and i can barily write with a pen so pls tell me
Probably a year late, but yeah those large plumes of fire you see are not produced by Liquid Hydrogen, or Liquid Oxygen. That is actually produced by the SRB (Solid Rocket Boosters).
Sal sounds like friends' ross(david schwimmer)!!!
Which chalkboard do you use?
It’s not a chalkboard lolllll.
why did he put the two's for? and how does he know to do this?
I have a test tomorrow and I didn’t study anything yay good luck me :)
Guys actually I have progress check (Test) on tomorrow in science.
Hydrogen is flammable and oxygen is supporters of combustion they should burn more and should blast but how their reaction form water
0:30
what are we
WHAT ARE WE
W H A T A R E W E
HA!
Can u make vidios on how to pridict product of chemical reaction
thanks SIR!!!!!!!!!!!!!! this helped me alottttt
Ey que sopa los 9 de CBP que llegaron aqui por los modulos de science
sii :(
Thnk you
When they mix liquid hydrogen with oxygen it will form water or not
What is the little bit of energy?
This is cool
thank you
so how iis it still 2H2? shouldnt it be separate?
Thaks
so if i mixed blue paint and red paint and made purple paint is that considered a chemical reaction
If the colour of the paint comes from pigments (which physically reflect certain wavelengths and therefore appear to have a certain colour to your brain) then no, it's a matter of physics.
isnt water reversable through electrolysis?
In a complete combustion reaction, fuel and oxygen are the reactants and the products are carbon dioxide and water. These two products cannot react to reform the fuel and oxygen, so the reaction is irreversible.
BeST TEACHER 🎉
3018 anybody? XD
Yes, lol
1920 anybody?
Me
İm from future
@@mc_nuggetss2480 I'm from the future of the future
Breaking water is easy
but is bending water easy? For The Avatar it is pretty easy
Born to be an artist, forced to teach chemistry 😩
2019 boards anybody ?
ahmad yes هههههه
2024?
What if I spray hydrogen gas into atmorsphere
Will it rain because 21% is 02
But it's super cool
watched
Help me, give me an example of chemical reaction
Hdusjzbwoao + jwoq9aidhdk2obag = bdheiwowowosid8838h3b3hdix9b
eating food
ya !
Nice
2020 anyone?
ahhh thanks science is doing me wrong rn
Isn't hydrogens valency 1?
2020?
someone explain the difference between a chemical bond and a chemical reaction.
käyłä I’m not sure
käyłä one is a bond and one is a reaction
Jadyn watched
anyone 2020 like me ?????
Yeah
Wait, so the shuttle makes water instead of whatever nasty shit comes out of my car? Does that mean the smoke coming out of it isn't even really smoke, but steam?
Sort of. The engines on the space shuttle itself produce water. The solid rocket boosters on the side, however, don't burn hydrogen. They burn ammonium perchlorate composite propellant, which produces more than just water. Look up ammonium perchlorate composite propellant to see the chemistry in detail.
+Aeroscience you're a lot of fun at parties 😇
Which grade is this?? I'm in 7th grade but love learning chemistry for fun. Great vid btw!
Bruh
Bhu
GoZa up
This Khan academy owner is from Dubai. I am right ?
தமிழில்.இருந்தால்
வசதியாக.இருக்கும்
ginga
outward
👀👀
Iam want C2 H2 O2 NAME PLEASE
Hi
Can you explain easier
Broooooooooooooooooooooooo
Hii
I’m so confused 👁👄👁
christmas music playlist
is anyone here from STEM ??
youtube rewind
Idk
i still don't understand
It's terrible to see what's written
Please make a Hindi lecture
I think the background should be white