Clues to the underlying causes of boredom have come from patients who suffer traumatic brain injuries (TBI). According to James Danckert, a neuroscientist at the University of Waterloo in Ontario, people with TBI often begin to indulge in riskier activities after their accidents.
The light is mapped as an image along the surface of the retina by activating a series of light-sensitive cells known as rods and cones. These photoreceptor cells convert the light into electrical impulses which are transmitted to the brain via nerve fibers.n the Experiment, you learned that when an atom or molecule absorbs a photon, its electrons can move to higher-energy orbitals, and the atom or molecule makes a transition to a higher-energy state. In retinal, absorption of a photon promotes a p electron to a higher-energy orbital (a p-p excitation).
Why does it happen? The simple answer is that light is a wave and reflecting, bouncing off certain other materials while retaining the same wavelengthâ¦sometimes, is just what waves do. A more detailed explanation is that the energy in light, photons, activates the electrons in some materials, causing them to move and emit photons likewise.