Physicists discover a new way for objects to experience friction without contact

物理學家發現物體在無接觸狀態下產生摩擦力的新方法

For over 300 years, scientists have followed Amontons’ law, which states that friction happens when two surfaces rub together.

三百多年來,科學家們一直遵循阿蒙頓定律,該定律指出摩擦力發生於兩物體表面摩擦時。

conceptAmontons’ law

However, researchers from the University of Konstanz have challenged this rule by proving that friction can occur without any physical contact.

然而,康斯坦茨大學的研究人員通過證明摩擦力可以在沒有任何物理接觸的情況下發生,挑戰了這一規則。

orgUniversity of Konstanz

In their study published in Nature Materials, scientists created a system with two magnetic layers.

在他們發表於《自然-材料》(ㄗˋㄖㄢˊㄘㄞˊㄌㄧㄠˋ)的研究中,科學家們創造了一個具有兩層磁性層的系統。

orgNature Materials

This phenomenon, known as magnetic frustration, causes magnets to flip and reorient as they struggle to align with the opposing field.

這種被稱為磁阻挫的現象,導致磁鐵在努力與相反磁場對齊時不斷翻轉並重新定位。

conceptmagnetic frustration

This discovery suggests a future for wear-free technology, where machines operate indefinitely without degradation.

這一發現預示了無磨損技術的未來,機器可以無限期運作而不受損耗。

techwear-free technology

Because this friction is magnetic, it can be tuned or adjusted remotely, opening doors for advanced applications in nanotechnology and programmable metamaterials.

由於這種摩擦力是磁性的,它可以被遠程調節,為奈米技術和可編程超材料的先進應用打開了大門。

technanotechnology
techmetamaterial
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文章閱讀結束

你閱讀了 6 句重點內容。

挑戰模式

閱讀理解

What foundational principle of physics was challenged by the new study?

正確答案

Amontons’ law

How is friction generated in this new experimental system?

正確答案

Through the collective behavior of magnetic elements

What is the primary cause of friction in this contactless experiment?

正確答案

Magnetic frustration

What is a major potential advantage of this discovery?

正確答案

Development of wear-free technology

How does the friction in this system behave compared to traditional friction?

正確答案

It peaks and can decrease at certain distances

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