Kevin Ochoa, Marquez Thomas ,Jordan
Smith
Science project 8A
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The first form of elemental phosphorus to be produced (white
phosphorus, in 1669) emits a faint glow upon exposure to oxygen – hence
its name given from Greek mythology, Φωσφόρος meaning "light-bearer"
(Latin Lucifer), referring to the "Morning Star", the planet Venus. The term
"phosphorescence", meaning glow after illumination, originally derives
from this property of phosphorus, although this word has since been
used for a different physical process that produces a glow. The glow of
phosphorus itself originates from oxidation of the white (but not red)
phosphorus— a process now termed chemiluminescence.
Phosphorus is essential for life. As phosphate, it is a component
of DNA, RNA, ATP, and also the phospholipids that form all cell
membranes. Demonstrating the link between phosphorus and life,
elemental phosphorus was historically first isolated from human urine,
and bone ash was an important early phosphate source. Phosphate
minerals are fossils. Low phosphate levels are an important limit to
growth in some aquatic systems. The chief commercial use of phosphorus
compounds for production of fertilizers is due to the need to replace the
phosphorus that plants remove from the soil.
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Phosphorus is a chemical element with
symbol P and atomic number 15.
A multivalent nonmetal of the nitrogen group,
phosphorus as a mineral is almost always
present in its maximally oxidized state, as
inorganic phosphate rocks. Elemental
phosphorus exists in two major forms—white
phosphorus and red phosphorus—but due to
its high reactivity, phosphorus is never found
as a free element on Earth.
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Hennig Brand in 1669.
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The chemical element phosphorus has many
uses and applications in everyday life.
According to Nautilus, these applications
include fireworks, luminous projectiles and
matches. Phosphorus is also extensively used
in industry for the production of metal alloys
and as an additive to industrial oils. Its most
popular application is in the fertilizer industry,
which absorbs almost all extracted phosphates
found in rocks.
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Over 693 events happened.
Richard Nixon becomes President of the
United States
The first man is landed on the moon on the
Apollo 11 mission by the United States and
Neil Armstrong and Edwin 'Buzz' Aldrin
became the first humans to set foot on the
Moon. and the famous words "That's one
small step for man, one giant leap for
mankind." will become part of our history
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Charles "Pete" Conrad and Alan Bean of Apollo
12 land on the Moon to become the second set
of American astronauts to walk on the moons
surface.
Woodstock attracts more than 350,000 rock-nroll fans, Atlanta International Pop Festival on
4th July attracts 100,000 fans, Isle of Wight
Festival attracted an audience of approximately
150,000
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Astronomy and space exploration
Biology:Marcello Malpighi publishes Dissertatio
Epistolica de Bombyce in London, a study of Bombyx
mori which is the first published monograph on
an invertebrate
Chemistry:
Medicine :
Meteorology and much more ! (example)
Herbert Saffir and Bob Simpson develop the SaffirSimpson Hurricane Scale.
Eugene Oregon had an record snowfall of 3 feet in 3
days during late January. A pineapple express moved
into the region with a shot of cold air, then there was
some snow showers after that.
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Phosphorus is classified as an element in the
'Non-metals' section which can be located in
groups 14,15 and 16 of the Periodic Table.
Non-metals are not easily able to conduct
electricity or heat and do not reflect light .
Non-metallic elements are very brittle, and
cannot be rolled into wires or pounded into
sheets. Non-metallic elements exist, at room
temperature, in two of the three states of
matter : gases (such as oxygen) and solids
(such as carbon).