Vision
and Memory
The
Eye is the Window to our Minds.
Hyperphysics
Eye Animation
Optics Animation
Photons
of light focus upon the retina causing the twisting
(isomerization) at a double bond of two carbon atoms within
the rhodopsin
molecule.
The signals are then transmitted to the brain for interpretation.
The signals are then transmitted to the brain for interpretation.
HyperPhysics
Gary Matthews (Rhodopsin in action)
A
better representation of the eye
The
Photoelectric Effect
is demonstrated in a Digital Camera. A charged-coupled
device replaces the age-old film camera.
Incident photons of visible light strike the silicon
pixel and generate electrons via the photoelectric
effect. One electron is released from
the silicon for every photon striking it. The electrons
are trapped within the pixel
because of a positive voltage applied to the electrodes.
The number of electrons that are trapped is proportional
to the number of photons striking the pixel.
Each pixel in
the CCD array accumulates an accurate representation of
the light intensity at that point in the picture.
Molecular Expressions
Cortex. . .and Beyond
Circuit
Diagrams---In a
circuit, high energy electrons are forced through the
circuit by the Voltage produced in the battery.
These electrons transfer their energy to the filaments
in the bulbs and return to the battery.
These electrons transfer their energy to the filaments
in the bulbs and return to the battery.
Animation of an Oxidation-Reduction Reaction
Simple Physical Principles
current
voltage
ions
Chemical Reactions
Electrical Conductivity
