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Biotech Science

Biochemist Creates CO2-Eating Light That Runs On Algae 121

Posted by samzenpus
from the but-will-it-clean-my-desk? dept.
An anonymous reader writes "Biochemist Pierre Calleja has a solution to reducing carbon emissions that doesn't require us to cut back on our use of carbon-producing devices. Calleja has developed a lighting system that requires no electricity for power. Instead it draws CO2 from the atmosphere and uses it to produce light as well as oxygen as a byproduct. The key ingredient to this eco-friendly light? Algae. Certain types of algae can feed off of organic carbon as well as sunlight, and in the process produce carbohydrate energy for themselves as well as oxygen as a waste product. Cajella's lamps consist of algae-filled water along with a light and battery system. During the day the algae produce energy from sunlight that is then stored in the batteries. Then at night the energy is used to power the light. However, as the algae can also produce energy from carbon, sunlight isn't required for the process to work. That means such lights can be placed where there is no natural light and the air will effectively be cleaned on a daily basis."
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Biochemist Creates CO2-Eating Light That Runs On Algae

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  • One place for use (Score:2, Insightful)

    by Anonymous Coward on Sunday May 06, 2012 @04:34PM (#39910185)

    In mines.
    Another, is in your mom's basement.

  • by UPZ (947916) on Sunday May 06, 2012 @05:08PM (#39910335)
    TFA: "Instead [the system] draws CO2 from the atmosphere and uses it to produce light as well as oxygen as a byproduct."

    Correct me if wrong, but the law of thermodynamics states that CO2 is in a lower energy state than carbohydrates + oxygen. So this system transforms a low energy product into a high energy product and releases light (even more energy) in the process?
  • by Anonymous Coward on Sunday May 06, 2012 @06:41PM (#39910807)

    No, if it were really brilliant, other people would be reading about it in Nature. We would be reading about it on geek.com, in an article that misrepresents the research in Nature in 6 different ways and doesn't provide enough information for us to locate the Nature article. That is, if we bothered to read the article at all.

    Because that is how we roll around here.

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