How Entropy Powers The Earth (Big Picture Ep. 4/5)

This video is about how we don't just need energy to power our lives, we need *low entropy* energy! This is also known as "free energy", and one way of thinking about entropy is as the lack of free energy. The sun provides us with useful, low entropy, energy in the form of photons of visible light, which are then absorbed and converted into plants, sugar, complex molecules, etc, before being radiated back into space as heat, which has much higher entropy.

REFERENCES & ADDITIONAL INFORMATION

Sean Carroll: The Big Picture

And twitter - @minutephysics

Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich

[hamishwoodland]

Kurzgesagt and minute physics within three minutes of each other?! It's Christmas.

[beddomu]

This video cleared up a lot of doubts I had about energy, thank you for making it!

[Blistio]

If I play say GTA V on my PC, it heats it up and makes my room nice and warm, so not entirely useless.

[mariusa]

I wish my cup of cold tea would summon an ice cube and heat up ;)

[joshmusic]

After watching this video I had multiple Epiphanies about the world... Renewable energy, combustion engines, decreasing entropy of algebra equations... So many things make sense now. This video is so clear and open ended-one of the best ever of minute physics

[thepoachedappple]

hours and hours of scouring through books and videos and you explain it all in less than 5 minutes!!!???!!! This is beautiful and you made it look so simple!
And to think that I used to hate entropy! Thank you for this series :)

[bhavinsinyal]

love u minute physics....ur last 2 -3 videos on entropy really helped me understand

[gayatrimandhane]

I didn't understand this series two years back but now I'm in 11th learning thermodynamics and I'm amazed

[db-cncq]

These videos really helped me understand entropy. I've struggled with the concept for a while but now I finally feel like I understand it.

[Aziraphale]

I love these videos with Dr. Carroll. In an ideal world everyone would have Sean Carroll as a personal tutor.

[BensonFung]

How entropy powers me?
Well, I use energy to live, and I'm useless.

[RalphDratman]

I thought that sounded like Sean Carroll. He was made this unusually clear. Thank you, Sean!

[vimalgopal]

This series on entropy is continually blowing my mind. I feel like I need to keep watching every day.

[Travisharger]

Reading Sean Carroll’s book “Big Picture” and it’s one of the best books I’ve ever read. 🤯🤯

[renvanderheul]

This video is 3:14 minutes long.
Coincidence? I think not.

[Squidward]

I've never understood entropy as much as after watching this video! Such a great series! :)

[micahphilson]

This song is amazing! I really love the music on these channels!

[Tommykee]

That kinda got me sad but so be it the laws of the universe

[nisbahmumtaz]

One of the best explanations to entropy I have ever seen. Great job!

[McJaews]

This is the best explanation of entropy I've ever seen.
Another example: A soda can is full of carbonated soda. When it's opened, the carbonation will slowly decrease until the soda is no longer fizzy. Putting it in a box with all of the CO2 and pressurizing the box wouldn't make the CO2 go back into the soda. The CO2 has gone from a low entropy state inside the soda, to a high entropy state as a gas outside of the soda.