david k warfel
There is a popular story that ties the Space Shuttle technology to the width of Roman horse's backside, and it just occurred to me that there is may be a parallel in lighting. The first story goes something like this: the booster rockets on the Space Shuttle were a certain diameter because they had to... 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 →
Would you be concerned if you had to eat McDonald's hamburgers for breakfast, lunch, and dinner for the rest of your life? Did you know you are probably doing the equivalent with your light? Without food, we die. We need food, regularly and sufficiently, to survive. Many of us now have the privilege of moving... Continue Reading →
I want you to buy my car. It is white, has 18" wheels and a hybrid motor, and I want you to pay me $50,000. Pretend that you do not know much about cars, so you ask the friendly clerk at a nearby tire shop. It turns out that they can also sell you a... Continue Reading →
Whoops. I just spent a lot of time re-designing the "light and health" section of our design presentations to include updated sections on the latest research, examination of snake-oil-sounding miracle products, and in-depth explanations of our six strategies for incorporating the science into our design work. I was very proud of the finished product. "Pride... Continue Reading →
And...we're back. The conversation around my first BS* + Beer guest appearance was so, er, illuminating that we found ourselves together just a few weeks later. This time the focus of the conversation was on lighting for the rest of us, or practical strategies we could apply on our own projects. Once again the hosts... Continue Reading →
*BS = Building Science When Green Building Advisor and Fine Homebuilding friends asked me to join an episode of the BS* + beer show, I was honored and a little scared. Why? Because builders and lighting designers do not always get along. In retrospect, I need not have feared. BS* + Beer is a weekly... Continue Reading →
https://www.technologydesigner.com/2020/12/10/lighting-layout-is-not-design/ I recently wrapped up my year of writing for Technology Designer, an elegant quarterly publication that also featured my stories on baths, living in place, and linear lighting. I was given an open invitation to share my final thoughts for design professionals to finish the series. I returned to one of the most common... Continue Reading →
Seven Saintly Solutions, Presented by David Warfel from DMF Lighting on Vimeo. One of the perks of starting your own company is that you get to pick your job title. At some point I decided that "Chief Evangelist of Light" (CEL) would be my own. Evangelist is a term that can have positive and negative... Continue Reading →
"They are total know-it-alls." I often ask homeowners, integrators, architects, and others if they have ever worked with a lighting designer. Most homeowners have not, and many do not know that we exist. The story is different for those in the trade. And in residential lighting design, from the responses I receive, there are know-it-alls... Continue Reading →
the language of light 