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Why is the ice slippery?

Has anyone ever walked on the ice and almost fell or seen an ice skater slide around comfortably? ⛸️ It seems to slip on its own, right?! Ever wondered why solid "ice" has more "slippery" properties than normal surfaces? This clip, Everyday Science, takes you through the science behind the slippery "ice" in seconds!

In this clip, you will know:

What's on the "skin of ice" that we can't see?

What does "pressure" or "temperature" have to do with slipping?

A simple science that explains the magic of ice!

After watching it, you will understand more about why the ice is slippery! 😉 Click Like, Share and Follow Everyday Science to get fun science around us.

# Everyday Science ♪ Slippery ice # Ice # Physics # Satire# Knowledge around # Knowledge essence # Science # Nature # Ice skating

2025/9/4 Edited to

... Read moreจากประสบการณ์ที่เคยเดินบนผิวน้ำแข็งหรือดูนักสเก็ตน้ำแข็ง เราจะพบว่าน้ำแข็งลื่นเป็นพิเศษจริง ๆ ซึ่งความลื่นนี้เกิดจากชั้นน้ำบาง ๆ ที่อยู่บนผิวน้ำแข็ง ถึงแม้อุณหภูมิจะต่ำกว่าจุดเยือกแข็งก็ตาม ชั้นน้ำนี้ไม่ได้เกิดจากการละลายของน้ำแข็งโดยตรงเสมอไป แต่เกิดขึ้นจากการกดทับหรือแรงเสียดทานเมื่อเราสัมผัสพื้นผิวนั้น เมื่อเราเหยียบบนน้ำแข็ง แรงกดที่เท้าจะเพิ่มความหนาของชั้นน้ำบาง ๆ นี้ ทำให้น้ำแข็งมีความลื่นและทำให้เราไถลไปได้โดยง่าย อีกทั้งอุณหภูมิใกล้เคียงจุดเยือกแข็งก็ส่งผลต่อชั้นน้ำนี้เช่นกัน ยิ่งอุณหภูมิเย็นจัด ชั้นน้ำบาง ๆ ก็จะมีความบางลง และทำให้น้ำแข็งลื่นลดลง จากที่ได้ลองสเก็ตน้ำแข็ง จะสังเกตได้ว่าพื้นน้ำแข็งที่ใช้สเก็ตมีการเก็บรักษาให้มีอุณหภูมิและความชื้นที่เหมาะสม เพื่อให้เกิดชั้นน้ำบาง ๆ นี้อย่างต่อเนื่อง ทำให้ลื่นและช่วยให้นักสเก็ตเคลื่อนที่ได้อย่างราบรื่น ดังนั้น ความลื่นของน้ำแข็งไม่ใช่เรื่องบังเอิญ แต่เป็นปรากฏการณ์ทางฟิสิกส์ที่น่าสนใจมาก ๆ และเมื่อเข้าใจแล้วก็ช่วยเพิ่มความระมัดระวังในการเดินบนพื้นน้ำแข็งเพื่อความปลอดภัยด้วยค่ะ

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