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cover of episode Climate Change + Baseball = More Home Runs

Climate Change + Baseball = More Home Runs

2025/3/25
logo of podcast Short Wave

Short Wave

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Frederic Bertley
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Regina G. Barber
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Regina G. Barber: 我从小就对棒球很着迷,尤其对击球的声音和曲线球很感兴趣,也听说有些球场更容易打出全垒打。 我对棒球的热爱始于童年时期在圣地亚哥观看教士队比赛的经历。那时,我痴迷于球棒击中球的声音,仿佛能从中预判击球的质量和是否能上垒。曲线球也让我着迷,我不解投手是如何让球以那种方式旋转的。此外,我还听说有些球场更容易打出全垒打。 现在,我对棒球的理解已经超越了单纯的娱乐,我开始从科学的角度去分析比赛,这让我对这项运动有了更深刻的认识。 Frederic Bertley: 气候变化会影响棒球运动,例如导致球速加快和全垒打增多,因为温暖的空气密度更低,使得球飞行速度更快。温暖的空气密度低于冷空气,因此球在温暖的空气中飞行速度更快。气候变化导致空气变暖,球速加快,更容易打出全垒打。传统上,快速球更容易打出全垒打,因为球速越快,击球的反作用力越大,球飞得越远;但曲线球的旋转也会影响球的飞行轨迹。棒球运动遵循牛顿力学原理,球的飞行轨迹呈抛物线形状,击球角度会影响球的飞行距离。45度角击球能获得最远距离。棒球场地的尺寸不统一,不同球场的围墙高度和距离不同,这会影响全垒打的概率。主场优势球队更容易打出全垒打,因为他们熟悉本队球场的特点,例如波士顿红袜队熟悉芬威球场的“绿魔怪”围墙。棒球比赛的胜负取决于击球成功率,而不是全垒打数量。精准击球比偶尔打出全垒打更重要,因为比赛的胜利取决于得分,而得分是各种击球方式的结果。击球平均数代表了击球手在所有击球机会中成功击球并上垒的比例,这体现了击球手的精准度和稳定性。棒球运动的难度很高,因为击球手需要在极短的时间内判断并击中快速飞来的球,即使是三分之一的击球成功率也已经非常出色。棒球击球是基于经验、直觉和对投手的了解做出的“有根据的猜测”。

Deep Dive

Chapters
Warmer temperatures due to climate change lead to less dense air, resulting in faster pitches and longer home runs. This is because the ball travels faster through less dense air. The warmer the air, the faster the ball travels.
  • Warmer air is less dense than cold air.
  • Less dense air allows baseballs to travel faster.
  • Faster pitches lead to more home runs.

Shownotes Transcript

Baseball season is nigh! From Yankee stadium in New York to Dodger stadium in Los Angeles, teams around the country will face off Thursday to mark the start of the 2025 MLB season. And when we here at Short Wave think of baseball, we naturally think of physics. To get the inside scoop on the physics of baseball, like how to hit a home run, we talk to Frederic Bertley), CEO and President of the Center of Science and Industry, a science museum in Columbus, Ohio. In this encore episode, he also talks to host Regina G. Barber) about how climate change is affecting the game.*Interested in the science of other sports? Email us at [email protected]) — we'd love to hear from you.*Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)