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Weather does not affect mood

06.12.2010

So say psychologists from the University of Maastricht (Netherlands), for several years, day after day, tracking the mood of more than 14 thousand experimental volunteers. They were given questionnaires in which they had to evaluate their mood in points daily.

It turned out that neither fluctuations in temperature, nor sunshine or overcast, nor rain or a bucket have a significant effect on our mood. In any case, this is the case with the Dutch.

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Random news from the Archive

Glass softens from weak laser light 20.11.2004

American scientists have discovered a strange effect: very small changes in the power of an ultra-weak laser can greatly change the hardness of germanium-selenium glass.

“It all started when my graduate student Yared Gump, who measured the hardness of the GeSe system glasses, began to bring me data every day that differed greatly,” says the head of the work, Ohio University professor Ratnasingham Suryakumar. “After a while, we guessed what these changes represent is an objective reality."

This glass, an alloy of 80% Ge and 20% Se, is a very interesting material used in electronics. Germanium is hard and selenium is soft. The proportion of 4:1 corresponds to the critical point - such a substance is no longer hard, but also not soft. To understand the reason for the change in properties, scientists examine hardness. And they do this by measuring the speed of sound - in a solid it is greater than in a soft one. And it is here that a beam of a super-weak laser, thin as a hair, appears on the stage - it is emitted by a device that measures the speed of sound in a solid body.

It turns out that increasing the beam power from just 2 to 6 milliwatts reduces the hardness of the glass by half! "It's as incredible as a police radar that changes the speed of a car with its radiation," says Professor Suryakumar. After the end of irradiation, the hardness of the material becomes the same.

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