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Did you know the electric light bulb was invented about 135 years ago?
Given the thousands of years that humans have been on earth (and the age of the planet itself 4.5 Billion years); that is but a flicker in time! Over those eons life evolved synchronized with the day and night patterns of our planet providing us an average of 12 hours of light and 12 hours of darkness over the year. With no artificial light available, we simply lived in harmony with the rhythms of nature. These rhythms (referred to as ‘circadian’ rhythms) are foundational to existence; built into the very fabric of our genes. Since the invention of the electric light bulb only a few decades ago, all that has changed. Almost overnight, our planet has become electrified; from space it literally looks like a glowing light bulb! Our love affair with light however, has a dark side and this presentation is created to give you the information and appreciation for darkness and for reclaiming a fundamental aspect of our heritage. We invite you to write us with your thoughts and share this presentation with your community and local government. FOR MORE INFORMATION, please check: http://darksky.org/ http://www.rasc.ca/light-pollution-abatement http://www.scenic.org/ http://bizled.co.in/mind-boggling-costs-of-lighting-global-landmarks/ http://physics.fau.edu/observatory/lightpol-Plants.html |
April 2017 News! International Astronomy Day!
Each year in April (around Earth Day and Astronomy Day) special events are held around the world to raise awareness about our environment - both earth and sky. This year celebrations begin Saturday, April 22 Earth Day and runs through Friday, April 28, 2017. International Dark-Sky Association (IDA) is hosting seven days of celebration, learning and action! Check out their website and please take part in some of the actions they promote. It benefits us all! darksky.org/dark-sky-week-2017/ |
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Here is a great video to support the campaign to develop a film to limit light pollution and glare from luminous signage.
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Please share this slideshow! Light Pollution is a fascinating and important topic.