tag:blogger.com,1999:blog-2999230124118604245.post2420333516929005711..comments2024-03-28T09:25:25.716-04:00Comments on Gurney Journey: Crash Course on LightJames Gurneyhttp://www.blogger.com/profile/01870848001990898499noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2999230124118604245.post-90255476210534085492015-07-18T13:32:51.702-04:002015-07-18T13:32:51.702-04:00Here’s another interesting bit of info to consider...Here’s another interesting bit of info to consider when thinking about the colors of light: Even though EM energy is made of waves, and we can combine different colored light, A+B, to make a third color, C, the EM waves do not interfere w each other (like sound-waves, or liquid-waves), A+B (does not =) C (a new wavelength energy); A+B = (A+B) a combination of the two wavelengths (not an admixture or interference), and C is ‘percieved’ by our visual-sensors/brain/thing. But w pigments, we are creating a new chemistry: A+B = C, where C has the property of reflecting the wavelength = C. <br />Thanks for the link, James! -RQ<br />Anonymoushttps://www.blogger.com/profile/02540150780230629982noreply@blogger.comtag:blogger.com,1999:blog-2999230124118604245.post-49819084431848189312015-07-17T22:59:59.638-04:002015-07-17T22:59:59.638-04:00He passes up differences between absortion spectra...He passes up differences between absortion spectra ( pigment or substractive color model ) and emition spectra ( light or additive color model ). Although it's not hard to understand , an electron jumps to a very specific energy level on absortion , but goes down through all intermidiate energy levels on emition , making light percivied from light emitiong sources ( i.e. a TV screen ) "richier" than light percieved from light absorbing sources ( i.e. a printed image ).Rick_Hunter_666https://www.blogger.com/profile/01285702986463980234noreply@blogger.comtag:blogger.com,1999:blog-2999230124118604245.post-92005947057807143942015-07-17T22:43:11.025-04:002015-07-17T22:43:11.025-04:00A lesser known fact for artists is that tinting is...A lesser known fact for artists is that tinting is acually a convolution operation between the light source and the image color (not spatial ) frequency spectra.Rick_Hunter_666https://www.blogger.com/profile/01285702986463980234noreply@blogger.comtag:blogger.com,1999:blog-2999230124118604245.post-19811019156396441942015-07-16T19:30:54.119-04:002015-07-16T19:30:54.119-04:00That was great fun! That was great fun! Susan Krzywickihttps://www.blogger.com/profile/11734833252007456199noreply@blogger.comtag:blogger.com,1999:blog-2999230124118604245.post-87826071215728051442015-07-16T17:10:15.423-04:002015-07-16T17:10:15.423-04:00This comment has been removed by the author.Anonymousnoreply@blogger.com