Today I bought a new bookshelf to store my many books and summer homework.
I also bought a glass bottle today. It looks like a message in a bottle, and I originally wanted to buy it to do something romantic at home, but I filled it with water too quickly. The key point is that when I closed the lid, the wooden stopper got wet and easily slipped inside, making it impossible for me to remove the stopper. I tried heating methods, but stopped due to safety concerns without letting the water boil. After cooling for a while, I put it in the refrigerator, but unfortunately, due to the bottleneck design, the mouth of the bottle froze faster than the water inside the bottle, so I took it out to prevent it from shattering.
At this point, I found that this bottle was very cool. I brought it to the bathroom when I took a shower, and it was still cool when I came out. At this point, I thought about whether it could be used for short-term cooling in the summer. According to ChatGPT's calculations, it can stay cool for about 40 minutes. For me, that's enough, the only downside is that it's a bit heavy. This time, I truly felt the high specific heat capacity of water.
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