Because human beings eyes are sensible to visible light.
it may be that there is a loose connection in the pole and or the light connectors(where you screw in the light) becomes a little rusted and when kick/shaken it loosens the rust and make connection. May be a loose connection, get it looked at by an expert, may be very dangerous!
I'm no expert but thinking back to my high school science courses I believe that light is changed to oyxgen during the photosynthesis process in plants.
it is the job of the expert system to know not mine
An Expert, or Specialist. ie; The author was an expert in American Culture.
The scientist should use a light microscope.
an opthalmologist
Yes, your regular optometrist should be able to fit you for prescription glasses. If they cannot do it, then they can point you in the right direction of someone who can.
optometrist
A nephew of his was an optometrist in the Chicago area sometime in the '70's. He should be about 60 years old now. (written 1-11-2010)
you were optometrist at your girlfriend.
an expert should be the master of his subject. an expert knows how to use his abilities an expert should know how to manage the situation that happens in his subject
An Optometrist is responsible for examining the eyes.
15 to 30%
an optometrist is 'un opticien' in French.
After visiting the optometrist, Nadia's eyes were very sensitive to light for several hours.
The frequency of the visits or how often depends on the child's health. In most average cases every year or two years is the best time to have the child see the optometrist.
No it should be: a company expert