Скачать или смотреть Archer Fish - The Physics Genius | Fluid Dynamics, Refraction, Speed, Gravity| Katrathu Kai Alavu

Archer Fish - The Physics Genius | Fluid Dynamics, Refraction, Speed, Gravity| Katrathu Kai Alavu

The archerfish (spinner fish or archer fish) form a monotypic family, Toxotidae, of fish known for their habit of preying on land-based insects and other small animals by shooting them down with water droplets from their specialized mouths.

Archerfish are remarkably accurate in their shooting; an adult fish almost always hits the target on the first shot. Although it is presumed that all archerfish species do this, it has only been confirmed from T. blythii, T. chatareus and T. jaculatrix.[1] They can bring down insects and other prey[6] up to 3 m (10 ft) above the water's surface.[7] This is partially due to their good eyesight, but also to their ability to compensate for the refraction of light as it passes through the air-water interface when aiming at their prey.[8] They typically spit at prey at a mean angle of about 74° from the horizontal but can still aim accurately when spitting at angles between 45° and 110



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