STEM与日常科技·英语30篇（3）

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屏幕刷新率与运动模糊感知

A screen's refresh rate measures how many times per second it redraws the image.
Standard monitors refresh at 60 Hz, while gaming displays often reach 144 or 240 Hz.
Low refresh rates cause visible 'motion blur' when fast objects move across the screen.
This happens because the human eye retains images briefly, blending successive frames.
Higher refresh rates reduce blur by updating positions more frequently and smoothly.
Response time — how quickly pixels change color — also affects perceived sharpness.
Smartphones use adaptive refresh rates to save battery while maintaining clarity.
Video content filmed at 24 or 30 fps may still look smooth on high-Hz screens due to interpolation.
VR headsets require at least 90 Hz to prevent nausea from lag-induced disorientation.
Refresh rate matters most in dynamic tasks like gaming, sports viewing, or drone piloting.