Why does a person round his eyes and open his mouth in surprise? Detailed answer

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Why does a person round his eyes and open his mouth in surprise? Detailed answer

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Why does a person round his eyes and open his mouth in surprise?

Rounding the eyes in surprise or fear is a reflex action that allows you to expand the field of view and thereby better assess the situation and the degree of danger. A similar reaction is demonstrated by the great apes. Also, in unexpected situations, many animals involuntarily open their mouths, which is associated with the connection to the perception of the vomeronasal organ, which is part of the additional olfactory system. In humans, this organ is not associated with the oral cavity, but the reflex is preserved.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Why do the laws of the US state of North Carolina prohibit plowing on elephants?

The famous Canadian circus performer Phineas Barnum (1810-1891) also became famous for his ability to use various psychological manipulations in advertising. It Barnum credited with the authorship of the phrase: "We have something for everyone."

One example of Barnum's extraordinary publicity stunt is the following. When his own traveling circus pitched its tents in the next city, Barnum harnessed one of his elephants to the plow and began to plow the land nearby. The ad worked: people snapped up tickets to shows to see what else the animals were up to.

Some townspeople, however, objected to the bullying of the noble animal - and since then, the laws of North Carolina have maintained a ban on plowing on elephants.

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Miniature module for receiving digital radio broadcasts 20.10.2014

Quantek, a specialist in digital radio solutions, has introduced the Q88 module for digital radio broadcast (DAB) reception. According to the manufacturer, the Quantek Q88 is the world's smallest digital radio receiver. The dimensions of the module manufactured using the System In Package (SiP) technology are 17x17x1,15 mm.

The Q88 integrates an RF tuner, signal processor, audio decoder and application processor. According to the company, the high degree of integration saves up to 75% of PCB space compared to other similar solutions. It also simplifies design and reduces the number of components, power consumption, and device costs.

The typical sensitivity of a module supporting Eureka-147 broadcast technology is -99,0 dBm. The module is equipped with an SPI control interface and a two-wire interface compatible with I2C (in slave mode), as well as a USB interface used for firmware upgrades. Antenna input - combined, for FM and Band III.

The areas of application of the novelty are built-in and stand-alone digital radios, including pocket ones. Serial production of Q88 has already begun.

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