119,318 Số Lần Thích 1,025 Số Lần Không Thích
British people are not known for great eye contact, but Gav steps up his game by looking deeply into Dan's eyes... From about 2 millimeters away to find out how quickly a pupil constricts.
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The Speed of Pupil Dilation - The Slow Mo Guys
Filmed at 1000fps and 500fps with a Phantom Flex 4K