STEM与日常科技·英语30篇（5）
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Smart Textiles That Sense Motion and Send Alerts
能感知动作并发送警报的智能织物
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Engineers weave ultra-fine silver-coated nylon threads into everyday fabrics like cotton or polyester.
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These conductive fibers act like invisible sensors, detecting stretch, pressure, and bending in real time.
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When a person falls or stops moving for over 60 seconds, the fabric triggers a wireless alert to caregivers.
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No batteries are needed—the motion itself generates tiny electrical pulses via piezoelectric effect.
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Washable prototypes survive 50+ cycles without losing sensitivity or conductivity.
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Elderly users report feeling safer wearing these shirts than carrying separate emergency pendants.
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Athletes also use similar textiles to monitor posture and muscle fatigue during training.
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The data flows securely to apps that visualize movement patterns over days or weeks.
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Unlike rigid wearables, smart textiles feel like regular clothes—so people actually wear them consistently.
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This fusion of textile engineering, electronics, and human-centered design makes safety both soft and smart.