The ping-pong ball cannon: A爆破性的科学探索

Posted by: sunxin in Science 3 months, 3 weeks ago

当我们将两米半的PVC管内塞入一个乒乓球，两端覆盖上隔热铝箔，抽出98%的空气，在一端放上易拉罐并刺破另一端的铝箔时，会发生什么？准备好了吗？三，二，一。（砰！）哇，那声音真大 - 让我们来看看罐子上的损伤。

Temu Tech Dupes: How Well Do They Work?

Posted by: sunxin in Technology 4 months ago

you've been a great audience## Unveiling the Truth About Tech Dupes: A Hands-On Review