Mazy Kazerooni

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By - Kim Garza

Pressureless Tennis Balls Worth It

Have you ever noticed how regular tennis balls tend to go soft after a while? That’s because they are filled with a pressurized gas, which is what gives them their zip and bounce. Unfortunately, this gas gradually dissipates under normal atmospheric pressure, which is much lower than the balls’ internal pressure. And in case you were wondering, that’s the reason