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214-212 B.C.
Archimedes' Heat Ray
-Using Heat
-War
20th century Photoelectric effect
Observation of electron
emission of metals when
light is upon it
Leading to high Tech, high
efficiency technique of getting
solar energy
1839
French Scientist
Edmund Becquerel
-There's a change in electrical potential when object are exposed to sunlight.
Reference
*The copyright
of the video is
owned by
"GreenLiving UK"
Important Information about Solar Energy with respect to Global Geography Class
Sun's energy on earth /hour
= Total energy use on the earth/ year
Limitless supply of energy
A.K.A, Renewable Natural Resource
Natural Resource: Any natural recourse that can reproduce itself under the time of 50 years.
Formula for Energy gained from solar panels
Uses Photovoltaic cells to collect the sun energy
-turns it in to D.C. current (direct current)
-Greater the sunlight, more energy present to
convert to current, AKA electrical energy
*If anyone is interested in D.C. or current system
in general, feel free to ask at the question time at the end of the presentation.
P=BAT^4
dT=((I[in] - I[out])dt)/C
When
P=power
B= Stefan boatmann's
constant
A=area of emitting surface
T=temperature of surface
dT=delta T or Change of Temperature
I=Intensity of emitted radiation
dt=change in time
C=heat capacity of a surface
Evolution of the Solar Panels