Shadows, umbra. Light source is very tiny, concentrated in one place. a point source. Only a sharp shadow is formed. Physics example vector.
Palabras clave
umbra,
shadow,
sharp,
area,
light,
lantern,
sphere,
sun,
sunlight,
tiny,
total,
star,
ball,
chart,
cosmos,
earth,
diagram,
astrology,
discovery,
school,
eclipse,
education,
cyclopaedia,
example,
figure,
form,
full,
galaxy,
geometry,
glow,
illustration,
lamp,
learning,
lighthouse,
lunar,
moon,
penumbra,
nature,
opaque,
optic,
phenomena,
vector,
physics,
point,
prominence,
science,
small,
solar,
source,
universe
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