Thames & Kosmos Glowing Chemistry handleiding
Handleiding
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UV Light and the
Ozone Hole
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32
OZONE HOLE
The strong UV light from the sun reacts with oxygen in
the upper layers of the atmosphere to form ozone gas,
which absorbs UV light and protects us from excessive
solar UV radiation. Certain gases from aerosol cans
will damage this protective ozone layer and lead to
“ozone holes.” That is why these gases have been
banned.
UV light
The ultraviolet range borders the violet or
purple color in the rainbow spectrum. This
light is more energy-rich than visible light,
from which certain possible consequences
follow. For example, it has a much stronger
effect on photographic film (which is how it
was discovered in the first place), it tans the
skin, and it produces fluorescence, such as
with the aesculin. Strong ultraviolet light
from the sun is very useful in nature. Unlike
humans, many bird species, honeybees, and
bumblebees can see UV light. That is why a
lot of flowers (such as dandelions and
orchids) have patterns that are only visible
to humans under UV light, and that are
invisible to the human eye normally.
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Glowing Chemistry |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 26917 MB |
