i-weather.org is an international consortium created in 2001 that has set itself the goal of creating the world’s first artificial climate to satisfy the metabolic and physiological requirements of a human being in an environment partially or completely removed from earthly influences: mediated reality, networks and netlag, the disruption of the body clock that comes with air travel, as well as with extra-terrestrial trips and holidays.

 

Accessible everywhere and to everybody thanks to the Internet, this artificial climate called I-Weather makes it possible to live in a situation completely removed from natural locations by producing an artificial circadian rhythm synchronised to match the inner cycle of the human hormonal and endocrine system. In the absence of the natural terrestrial cycle of day and night, it becomes apparent that this inner cycle in fact lasts around 25 hours, and that body temperature, the alternation between sleep and wakefulness, and the accumulation and secretion of substances such as cortisone and oligopeptides, all depend on it. i-weather.org has therefore put together the first specifically human climate.

 

This version of I-Weather operates solely on the basis of fluctuations in the rate of melatonin, which in turn is influenced by variations in the intensity of light received by the retina. i-weather acts as a kind of personal artificial sun, oscillating over a 25-hour 7 minutes and 40 seconds period between a maximum light frequency of 652 THz and a minimum of 503 THz.

 

The original version of I-Weather was launched on 26 October 2001 (version 1.0). It has been improved on June 5, 2009 (version 2.0) as scientific knowledge of biological rhythms has evolved, demonstrating that melatonin regulation is enhanced by using a minimum wavelength of 460nm (blue) and a maximum wavelength of 597nm (orange) rather than between 385nm (deep purple) and 509 nm (green). Actually, blue light suppresses the diffusion of melatonin in the body, while orange light allows performing actions without altering the body clock.

 

I-Weather is an open source, speculative architecture and art project. Its code exists for several platforms and can be downloaded for free to be used in personal projects (light installations, web sites, mobile phone applications, etc).

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