On the Earth Day's eve, the 21st April at 21:00 after the sunlight faded, a clear message through the lights of the dormrooms in Prague was created:

21:00: An incandescent ligtbulb with rather high energy consumption 

 

CHANGED INTO:

21:30h: a fluorescent lightbulb with approx. 5-times lower energy consumption

 

Change in the world is created always by a small group of people!

Congratulations!

 

Joomla templates by a4joomla