General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

Circadian clock (plants)

Science; General science

Circadian systems are natural phenomena whereby the biological functions of organisms are synchronised with the day-night cycle of their environment, allowing biological processes to anticipate ...

Any of a group of biologically active polypeptides which function as hormonelike regulatory signals, controlling the growth and differentiation of responsive cells. Indeed, the distinction between ...

Buildings

Science; General science

Fixed permanent structures, more or less enclosed and designed to use as housing or shelter or to serve the needs of commerce and industry. The history of buildings is almost as old as human history. ...

Heterosis

Science; General science

Hybrid vigour or increase in size, yield, and performance found in hybrids, especially if the parents have previously been inbred. The application of heterosis has been one of the most important ...

Voltage measurement

Science; General science

Determination of the difference in electrostatic potential between two points. The unit of voltage in the International System of Units (SI) is the volt, defined as the potential difference between ...

Pediculosis

Science; General science

Human infestation with lice. There are two biological varieties of the human louse, Pediculus humanus , var. capitis and var. corporis , each showing a strong preference for a specific location ...

Space flight, 2004

Science; General science

For space flight, 2004 was a year of strong contrasts. Human and robotic space activities set new marks with a lineup of unique accomplishments, preparing the stage for new developments that will ...