140 reputation
6
bio website stackoverflow.com/users/…
location Beijing, China
age 25
visits member for 2 years
seen Mar 11 '13 at 5:30

I have discovered a truly marvelous demonstration of myself that this margin is too narrow to contain.

enter image description here


Jul
4
awarded  Popular Question
Jan
15
accepted Why both yellow and purple light could be made by a mix of red, green and blue?
Jan
15
comment Why both yellow and purple light could be made by a mix of red, green and blue?
@jkej I can't wait to experience the real voilet color! Thank you!
Jan
15
comment Why both yellow and purple light could be made by a mix of red, green and blue?
Thank you! But according to this figure, purple light triggers S proteins at extremely high (higher than blue does), and triggers M and L proteins at very low. So I still can not understand how to generate such a signal strengths by a combination of high L + high S.
Jan
15
asked Why both yellow and purple light could be made by a mix of red, green and blue?
Dec
26
awarded  Scholar
Dec
26
awarded  Supporter
Dec
26
comment Is it possible to enlarge the output angle of a projector with outside lens?
I have got the whole perspective. Thank you!
Dec
26
accepted Is it possible to enlarge the output angle of a projector with outside lens?
Dec
25
awarded  Student
Dec
25
awarded  Editor
Dec
25
revised Is it possible to enlarge the output angle of a projector with outside lens?
edited title
Dec
25
asked Is it possible to enlarge the output angle of a projector with outside lens?
Dec
25
awarded  Autobiographer