Why can't snakes blink?

Spoiler alert: if you ever find yourself engaged in a staring contest with a snake, you'll lose.

Zeno "boy" robot: Let me introduce myself (w/ Video)

(Phys.org) -- Hanson Robotics is showing its new humanoid robot boy that belongs in its Robokind portfolio of robots, a 2012 reincarnation of its earlier cartoonlike Zeno boy but this time more humanoid with an array of gestures ...

Human eye inspires clog-free ink jet printer invention

Clogged printer nozzles waste time and money while reducing print quality. University of Missouri engineers recently invented a clog-preventing nozzle cover by mimicking the human eye.

Mask-bot: A robot with a human face

Robotics researchers in Munich, Germany, have joined forces with Japanese scientists to develop an ingenious technical solution that gives robots a human face. By using a projector to beam the 3D image of a face onto the ...

Eyelid

An eyelid is a thin fold of skin that covers and protects an eye. With the exception of the prepuce and the labia minora, it has the thinnest skin of the whole body. The levator palpebrae superioris muscle retracts the eyelid to "open" the eye. This can be either voluntarily or involuntarily. The human eyelid features a row of eyelashes which serve to heighten the protection of the eye from dust and foreign debris, as well as from perspiration. "Palpebral" (and "blepharo") means relating to the eyelids. Its key function is to regularly spread the tears and other secretions on the eye surface to keep it moist, since the cornea must be continuously moist. They keep the eyes from drying out when asleep. Moreover, the blink reflex protects the eye from foreign bodies.

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