STEM与日常科技·英语30篇（5）

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能感知动作并发送警报的智能织物

Engineers weave ultra-fine silver-coated nylon threads into everyday fabrics like cotton or polyester.
These conductive fibers act like invisible sensors, detecting stretch, pressure, and bending in real time.
When a person falls or stops moving for over 60 seconds, the fabric triggers a wireless alert to caregivers.
No batteries are needed—the motion itself generates tiny electrical pulses via piezoelectric effect.
Washable prototypes survive 50+ cycles without losing sensitivity or conductivity.
Elderly users report feeling safer wearing these shirts than carrying separate emergency pendants.
Athletes also use similar textiles to monitor posture and muscle fatigue during training.
The data flows securely to apps that visualize movement patterns over days or weeks.
Unlike rigid wearables, smart textiles feel like regular clothes—so people actually wear them consistently.
This fusion of textile engineering, electronics, and human-centered design makes safety both soft and smart.