Thermal conductivity of metal and wood | Thermodynamics | Physics | Khan Academy

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Why metal at room temperature feels cooler than wood at room temperature.
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[@Basic-Tron]

Great video, Khan. I was searching all over the internet for a video like this. No one explains intuitively like you do - using particles to demonstrate conduction.

[@munmunrai5653]

he is pretty good at drawing a hand..!!

[@diegoe.osuna03]

Awesomely explained!!
Thank you so much.

[@ancrumq12]

This is very informative and useful to know in everyday life. Thanks Khan Academy !

[@joebgoodus]

Mind Blown ! .. Thanks

[@finderkeeper836]

Very good video, thanks for sharing!

[@SuperOvidiuMihai]

Wow, awesome. You made my day. Actualy,night.

[@toitman2]

Love the intro

[@zeyadramadan8759]

Thanks for this video. I have a question;'
What if i used a device to measure the two materials? would they look as if they have 70deg or the metal would look cooler?

[@chualc]

No...they would measure at the same temperature though the metal would reach its steady reading faster.

[@yasyasmarangoz3577]

Thanks you two

[@blindsightedkill]

So would a super dense metal like titanium be the coldest or is there a cutoff somewhere

[@chualc]

Free electron in metals probably contribute more to the conduction of heat ... than density alone.

[@MrAE-vx4hg]

I like your sound man

[@Udinanon]

Fahrenheit
Really

[@landonrivers]

+MorenK1 yes. get over it.

[@alyssahoffman2093]

@@landonrivers =/

[@charanpreetiitd]

so, what about the heat conductivity through the atoms held in air pockets ? As long as its not vaccuum pockets

[@chualc]

Atoms in air pockets are vastly apart as compared with atoms in a solid, so they transfer heat at far lower rates.

[@peacnh]

3:33

[@peacnh]

1:48

[@comicbest2662]

👏👏👏👏👏👏👏

[@alyssahoffman2093]

wood vs metal >=3

[@hafsakhurram7483]

isnt conduction based on free electrons and ions ????

[@WDnarger]

Electrical conductivity does, not Thermal :D

[@axalate4572]

Thermal conductivity is also done through Free electrons but only in metals(free electrons are present in metals only). free electrons are another reason why metals conduct heat faster.

[@alyssahoffman2093]

i have a vid on camera with 0:0 seconds