MIT scientists finally reveal the hidden structure of a mysterious high-tech material

Materials known as relaxor ferroelectrics have played an important role for decades in technologies such as ultrasound imaging, microphones, and sonar. Their unusual performance comes from the way atoms are arranged inside them. However, that internal structure has been extremely difficult to measure directly, leaving scientists to rely on incomplete models. Now, researchers from MIT…

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Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions

American Express (Amex) is building a system that lets AI agents shop and pay on behalf of users — but right now it’s only within its own payment network, and still involves a black box that could hinder trust and auditability. Amex already participates in agentic commerce protocol projects, especially Google’s Agent Pay Protocol (AP2),…

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