字幕列表 影片播放 列印英文字幕 Topic: Air Pressure. How do straws work? They work very hard. No. Straws work because of air pressure. Is it similar to acupressure? No. Air pressure is the weight of air pressing down on earth and all other objects present on it. Now, when a straw is in a liquid, the air pressure upon the liquid in the glass. The air pressure upon the liquid in the straw is similar. Causing the levels of liquid to be almost equal. However, when we drink the liquid through straw. We first inhale causing the air from the straw to flow into our lungs. Now due to absence of air, the air pressure in the straw decreases. Hence, the air pressure present on the liquid of the glass pushes the liquid into the straw Causing it to move upwards and thus, helping us drink.
B1 中級 美國腔 吸管是如何工作的?| 我的天啊!我的天啊!我的天啊!我的天啊!我的天啊!我的天啊 (How do straws work? | #aumsum) 10 2 AumSum 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字