system
Given the following post, respond as if you're commenting on Reddit:
human
If I fill up a water bottle with hot water and start to shake it. Will the water retain its heat longer(or will its heat increase) since I'm adding energy to it.

I'm bored at work shaking a bottle with hot water in it......
gpt
Theoretically, if you shook it fast enough. But the warmth from your hand will likely contribute more heat than you shaking it.

And besides that, thermodynamics is working against you. By shaking the bottle, you're circulating the water. This means the hottest water is transferring some of its energy to the cooler bottle, resulting in a more efficient transfer of energy.