entity for the whole bay area and supervisor john avalos and i serve on it with the mayor's appointee roger kim. and the 6-year organization's vision is to protection the public health air quality and the global climate and to really advance healthy air for all in the san francisco bay area. mr. jack colburn has dedicated his life to advancing public health, clean area and environmental protection. throughout his career in public service he has worked with organizations such as the peace corps, the u.s. state department and for 15 years the u.s. environmental protection agency before joining the bay area air quality management district. until his recent retirement he served as director of communications, outreach and incentives and the administrative services division for the air district; from which he is retiring after a decade of distinguished service. i met jack when i was a school board member in 2004-2005 when supervisor kim and supervisor yee were also on the board of education and jack worked with us to ensure that the school school district had clean airbuss and limiting children's exp

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kim saying she sees white and gold, kanye saying he sees blue and black. explain this to us that it's not fixed, adam rogers. that our brains are interpreting what the eyes see. >> yes, it is a fascinating subject. what we have evolved to be able to do over evolutionary time is have a brain and eyes that together take in not just the color of an october intrinsically, which is a matter of some philosophical debate but the combination of the color that is illuminating the object reflecting off of it -- >> part of it is the idea that light itself has color in it? >> well that is right. what we're really good at because of how we evolved is living on a planet illuminated by daylight. >> i love daylight. >> it is good stuff. it is a combination of the entire visible spectrum, and it changes over the course of the day. so it is a daylight access a chromatic access. you will have rosy dawn blue white noon and our eyes are good at taking those colors and learning to ignore them to see an object as having the same color regardless of what color the light bouncing off of it really is. it is called color constant si.