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Misconception
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Facts
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The light can only be
reflected from shiny surfaces (such as a mirror), object
cannot absorb and reflect light
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All objects absorb and
reflect light to different degrees, the ability to see
objects depends on the reflection of light
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Earth gets heat from the sun.
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The sun is actually too far from the earth to heat it directly.
Instead, the light from the sun is reflected or absorbed by objects on earth.
Absorbed light usually increases the energy in an object, causing the object
to heat up.
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seeing involves emissions from the eye
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When you see, you do not "send something out" from your
eyes. Instead, you see an object
because light-photons move away from the object and into your eyes. Your mind is actively involved with
processing and interpreting what you see, but the physical flow of
matter/energy (and associated information) is in one direction, from an
external event into your eyes and mind, so an event is not affected when you
observe it.
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blood that lacks oxygen
turns blue probably comes from the fact that veins appear blue and
blood in the veins is typically heading back to the lungs, hence depleted of
oxygen. It is also possibly from the fact that when people are suffocating or
the like, their lips and complexion seem to turn blue-ish or purple.
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it turns out that when blood is deprived of oxygen, it actually just turns dark red, as
we often see when it is drawn when we are donating blood. When it’s
oxygenated, it turns a brighter red. This red color primarily comes from the
hemoglobin, which contains four heme groups. These heme group’s interactions
with various molecules end up giving it the dark red or light red color we
see. The hemoglobin itself is a protein that binds with oxygen to eventually
be distributed throughout the body in blood.
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light is reflected from
other surfaces
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Light is reflected away from shiny surfaces, but light is not
reflected from
other surfaces
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Sun is yellow
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Sun is white. The reason the Sun looks yellow to us on Earth is that our atmosphere
scatters light from the Sun; so the apparent color of the sun changes.
This same scattering effect is why the sky looks blue in
the day time instead of black, like at night.
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PeNAkSIRaN 1
4 years ago
1 comments:
such an interesting information. sincerely, I did have misconceptions on the color of sun and earth get heat from the sun. Who knows this simple information also can be misunderstood by me. thanks for this group. Really appreciate the information.
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