Scientists Just Upended a 300-Year-Old Law of Physics
Yahoo • • science
Key Points:
- A new study from the University of Konstanz reveals that Amontons’ first law of friction, established over 300 years ago, fails to predict frictional behavior between two magnetic materials.
- The researchers found that magnetic friction varies with distance between magnetic layers, being weakest at very close and far distances but increasing at intermediate distances due to competing magnetic interactions.
- Unlike traditional friction caused by surface contact, this magnetic friction arises solely from internal magnetic reorganization without wear or direct contact.
- These findings challenge the concept of fixed scientific "laws" and have potential implications for improving micro- and nanoelectromechanical devices that rely on magnetic properties.
- The study underscores the evolving nature of scientific understanding, emphasizing that theories remain open to refinement as new phenomena are discovered.
