david k warfel
Coffee, when poured into a mug and consumed, delivers a strongly desired boost of energy through caffeine. The same coffee, when poured onto the laptop, can be ruinous. The question of usefulness or harmfulness, applied to coffee, is answered by the use. The same can be true for light, especially outside. But indulge me a... Continue Reading →
Blogging for me can be a bit like extended traveling. I pick a destination, plan a route, and usually arrive there more or less when intended. But the longer the trip, the more unpredictable it becomes, peppered with side trips and new discoveries. In other words, I did not plan this post. But sometimes my... Continue Reading →
Satellite image from NASA via Blue Marble. Can you find your town? When it comes to light, it is hard to tell exactly how much we throw away. The International Dark Sky Association estimates that 35% of lighting energy is wasted making the sky glow. This is energy that has no discernible positive effect on... Continue Reading →
the language of light 