Hydrogen: The Fuel Of The Future
.... the engine for use.
There are many ways to get pure hydrogen out of many compounds using methods
such as electrolysis and chemical reactions. One of the easiest ways is using a
chemical reaction. Simple chemicals (aluminum,sodium hydroxide, and water) can
be reacted in the home to produce heavy hydrogen to power your furnace or your
hot water heater . No electrical power at all is required. The reaction also
gives off a tremendous amount of heat. Even the waste heat could be captured for
heating the hous .....
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Hydroponics
.... on things like submarines, space stations, off-shore oil rigs, or any
where else where dirt is hard to come by.
During this experiment we'll be looking for which plant life well do
best with hydroponics, by measuring which plant has grown the highest or
bushiest. We also well be looking for green and healthy looking leaves on the
plants. We have no idea what the results might be, so this should be an exciting
experiment.
Problem
Which form of plant life will thrive the most in a hydroponics .....
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Integrated Pest Management
.... the biology of the
pest species, and soil quality, to determine the best method of pest control.
Tactics employed include better tillage to prevent soil erosion and introduction
of beneficial insects that eat harmful species. Many pests that are attached to
crop residues can be eliminated by plowing them underground. Simple paper or
plastic barriers placed around fruit trees deter insects, which can also be
attracted to light traps and destroyed. Weeds can be controlled by spreading
grass, leaf, or blac .....
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Endangered Species Study: Jaguars
.... have died. The rain forests that the
jaguars inhabit are being torn down to open up lumbering, farming, livestock
raising, and other activities carried out by humans. Killing a jaguar is taking
away a life that is doing no harm to the eco-system. A jaguars' way of living
is much like that of a human, you don't see jaguars killing humans for their
skin.
III. Any endangered specie, including the jaguar, has many different
alternatives in which the government or a national group would have to be
involv .....
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Landfills: A Growing Menace
.... to air traffic at Newark airport
[Rathje 3-4]. The area now encompassed by the Fresh Kills (Kills is from the
Dutch word for creek) Landfill was originally a tidal marsh. In 1948, New York
City planner Robert Moses developed a highly praised project to deposit
municipal garbage in the swamp until the level of the land was above sea level.
A study of the area predicted the marsh would be filled by the year 1968. He
then planned to develop the area, building houses and attracting light industry
over the lan .....
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Malibu Fires
.... and the fact that the fires were not very intense. As
people began to change from a hunting-gathering society to agriculturists, they
settled in communities. Homes built among the wild brush were perfect prey to
wildfires. Initially, wildfires were put out immediately and people were barred
from setting fires in open spaces. Due to the policy of fire suppression, only
one percent of all wildfires escaped early control. The land was safe from
fires temporarily, but this set the stage for catastro .....
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Management Techniques For The Red-Cockaded Woodpecker On Federal Lands
.... (Picoides borealis) is an endangered species
that inhabits pine forests in an historical range from Texas to the Atlantic
coast (Jackson, 1986; Reed et al., 1988). Picoides borealis nest in clans or
family groups that usually consist of one breeding pair and 2 non-breeding male
helpers (Jackson, 1986 ). This group establishes and defends a territory that
includes foraging habitat and nesting "cavity trees" (Copeyon et al., 1991;
Jackson et al., 1986; Rossell and Gorsira, 1996). Red-cockaded wo .....
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Manatees
.... nostrils are closed by valves, so they can accomplish such feats as
flips and quick turns without losing any air. Manatees have no hind legs, but
instead one big, flat, spatula-like tail (Sentman 327). This feature made people
confuse manatees with mermaids for nearly four centuries (O'Shea 66).
Many biologists say that manatees possibly originated or evolved from
ungulates such as elephants and cows because of the way that they are built, and
certain features that they have in common. Like elephants, ma .....
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Natural Resources And Management
.... Furthermore, they offer educational and recreational
opportunities and provide links to our past.
People have lived in North America for at least 12,000 years.
Archaeologists and historians have divided this time span into prehistoric and
historic periods. The prehistoric period extends from the earliest arrival of
humans in North America to the coming of the European explorers. The historic
period begins with the arrival of these explorers and continues up to the
present.
As you walk across public lan .....
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Nuclear Weapons
.... testing.
Attempts to control the number of nuclear weapons in the world began
about 1970. The Strategic Arms Limitation Talks(SALT) was a convention held by
the United States and the Soviet Union to limit the numbers in nuclear weapons.
In 1982, the United States and the Soviet Union began the Strategic Arms
Reduction Talks(START). Unlike the SALT talks, these were aimed at the number
of nuclear weapons each country could obtain. Then there was another treaty
signed in 1987 which was called t .....
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Smuggling Of Nuclear Material
.... the Cold War the security of Soviet nuclear weapons and missile
materials was based on a highly centralized military system and operating within
a strong political authority. The workers back then where well disciplined and
each individual new his/her role. The workers were among the best treated and
loyal to the Russian military. They are now suffering hardships and are forced
to scavenge anything to pay for their food, rent and social services.
A new trend is already occurring with some o .....
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Nuclear Waste Management
.... was present in this explosion is also
present in spent fuels. This presents special problems in the handling, storage,
and disposal of the depleted uranium. When nuclear fuel is first loaded into a
reactor, 238U and 235U are present. When in the reactor, the 235U is gradually
depleted and gives rise to fission products, generally, cesium (137Cs) and
strontium (90Sr). These waste materials are very unstable and have to undergo
radioactive disintegration before they can be transformed into stable isotope .....
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Oceans
.... societies. “For we
of the 20th century still treat the ocean as the endless, bottomless pit it was
considered to be in medieval times.”(Heyerdahl) The majority of the world's
population still lives under the misconception that the ocean is a hungry abyss,
eager to devour all their waste. These beliefs, however, are all untrue. The
average depth of the oceans is only a little more than a mile, when in fact,
some lakes exceed this depth rather handily. Although the size of the ocean is
often pondered, t .....
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Our Radiant Planet- Depletion Of The Ozone Layer
.... which destroys ozone by oxidising with the Ozone molecules, forming
Cl-O and Oxygen. One atom of chlorine can destroy 10,000 ozone molecules! Atoms
containing bromine, nitrous oxide, and hydrogen oxide radicals are also
primarily dangerous. As a result, the Ozone in the stratosphere has been reduced
to such an extent that ozone holes are appearing around the globe, in particular
one over Antarctica that in 1995 measured 8.2 million square miles. This
depletion has allowed more dangerous UV-B radiation to .....
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Ozone
.... 3 x 10-5 percent of air. Furthermore,
this minuscule amount of ozone is enough to protect the earth from most
ultraviolet light. Ozone prevents most UV-B radiation from reaching the surface
of the earth (Environment Canada, 1996). Ozone is very important to life on
earth because the harmfulness of high-energy UV-B radiation stems from the high
energy of these light rays, enabling them to penetrate deeply into water, plant
tissue and epidermal tissue of animals. Increased UV-B radiation results in
harmin .....
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