科学素养与生活应用·英语30篇（3）
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How Touchscreens Recognize Finger Tap
触摸屏如何识别手指点击
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Most touchscreens use electrically sensitive glass layers.大多数触摸屏采用电敏感玻璃层。
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Your finger changes the screen’s tiny electric field when you tap.手指轻触时会改变屏幕微小的电场。
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Sensors detect where the field shifts and send signals instantly.传感器实时检测电场变化位置并发送信号。
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A processor then matches the spot to an app or icon.处理器随即把该位置对应到某个应用或图标。
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Water or gloves may block the signal because they don’t conduct well.水或手套可能阻断信号，因其导电性差。
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This tech works fast thanks to microchips built into every device.得益于每台设备内置的微芯片，这项技术响应迅速。
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Engineers test screens for accuracy and response time carefully.工程师会仔细测试屏幕的准确性和响应时间。
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Even light pressure triggers reliable digital feedback every time.即使轻微按压，每次也能触发可靠的数字反馈。