The Future Of NASA
.... pumping blood. Pens that write upside-down are used in space, where there
is no gravity and writing with pens would otherwise be impossible. They are
convenient tools on Earth when we are trying to write on vertical surfaces. A
zero-gravity training system is used to help astronauts become more comfortable
with the conditions in space. It is used in places such as Sportsland, for kids
to twirl around in.
In the future, telephones with picture screens, much like those used to
see astronauts in space with, will become common on Earth. Rooms with no
gravity may become a part of amusement parks. More solar-powered energy source .....
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Man-of-War
.... called
nematocysts(3). The nematocysts release a toxin(4) into anything that they come
into contact with. The gastrozooids then attach to the dead/stunned victim, and
spread over it. They digest it, and transfer food to the rest of the man-of-war.
Last, the gonozooids create other polyps. The means by which the man-of-war
reproduces, however, is not yet understood.
The fish Nomeus gronvii lives among the tentacles of the man-of-war.
This fish, which is eight centimeters long, is mostly immune to the man-of-war's
toxin. It will eat the tentacles, which will grow back, as its main source of
food. Although it is mostly immune to the .....
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Satellites
.... oxygen. It traveled only 56m (184 ft) but
proved to the world that the principle was valid. Gossard Died August 10, 1945.
Gossard did not work alone, he was also in partnership with a Russian theorist
named Konstantin Tsiolkovsky. Tsiolkovsky was born on September 7, 1857. As a
child Tsiolkovsky educated himself and rose to become a High School teacher of
mathematics in the small town of Kaluga, 145km (90mi) south of Moscow. In his
early years Tsiolkovsky caught scarlet fever and became 80% deaf. Together, the
theoretical work of Russian Konstantin Tsiolkovsky and the experimental work of
American Robert Gossard, confirmed th .....
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Uranium
.... classification of the elements by chemical properties and increasing
atomic mass. Experimentation with uranium lead to many discoversies such as the
X-ray by Wilhelm Röntgen, on November 8, 1895.
Wilhelm Röntgen, was awarded the first Nobel prize in 1901 for the development
of the X-ray. Uranium is weakly radioactive, decaying slowly but inexorably at
the rate of one milligram per tonne per year. It is transformed into inactive
lead through a chain of radioelements or daughters, each of which has a
characteristic disintegration rate, a constant of nature that man has never been
able to alter. The proportion of each radioelement .....
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Volcanos
.... lava forms flows of boulders and rubble
called block flows. It may also form mounds of lava called domes.
Other lava formations are spatter cones and lava tubes. Spatter cones
are steep hills that can get up to 100 feet high. They build up from the spatter
of geyser-like eruptions of thick lava. Lava tubes are tunnels formed from fluid
lava. As the lava flows, its exterior covering cools and hardens. But the lava
below continues to flow. After the flowing lava drains away, it leaves a tunnel.
Rock Fragments
Rock fragment are usually called tephra and are formed from sticky magma.
This magma is so sticky that its gas can .....
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A Discussion On Earthquakes
.... that the process and formation of and earthquake be understood.
Earthquakes are caused when the earth's crustal plates move, rub, or push
against each other. The earth's crust (the outer layer of the earth) is made up
of seven major plates and approximately thirteen smaller ones. The name plate
is used to describe these portions of the earth's crust because they are
literally “plates” or sections, composed of dirt and rock. These plates float
on molten lava, called magma. Since the plates are floating on magma, they can
slowly move. The place where friction occurs between plates is called a fault.
A fault is a crack in a plate .....
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Could The Greenhouse Effect Cause More Damage?
.... degrees. The unheated sections in between allow researchers to
compare the efects of the lamps with the regular state of the meadow.
One time a week, Harte will take gas samples from buckets turned upside
down for ten minutes at a time on both the heated and unheated strips through
fitted nipples at the bottoms of the buckets by syringes, then analyze them
with a gas chromatograph. "We'll be able to plot any changes in the meadow
very precisely," says Harte.
Some of these changes could alter the very make-up of the seasons. With a
2.5 degree rise in temperature, snow at high elevations might melt up to two
months soo .....
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A Beginning And End
.... I cannot help but notice the activity that surrounds me. Gardens are
being tilled and planted for the ground is warm and will soon break with sprouts
of future bounty. Butterflies of every color are seen flittering and fluttering,
while insects of all kinds are heard buzzing and humming. Butterfly and insects
eagerly emerge from their winter homes intent on the tasks which lie ahead. The
landscape is a palette of every shade of green imagineable. Before my very eyes,
a kaleidoscope of colors splash the horizon as buds, leaves, and blossoms spring
forth and pollen fills the air. The nests of foul, squirrel, and othe .....
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Acid Rain Legislation
.... they can have on the
environment. Acid rain is harmful to the environment because of it's low pH.
It can harm the biotic components of earth, and also the abiotic components.
It's high acidity degrades soil to the point where it cannot support any type of
plant life. Trees in forests are killed over long-term exposure. When these
trees are killed, an imbalance in the hydrologic cycle can occur. Without
living trees to consume the precipitate, it must be consumed by the earth or any
other plants. These will receive an excess of water, causing other problems in
the hydrologic cycle. This in turn causes a chain reaction of .....
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Acid Rain
.... water, the result is sulfuric acid.
When nitrogen oxide gas combines with water, the result is also another acid.
When the clouds releases rain or other precipitation, the acid goes with it.
This is called acid rain.
The level of acid is measured in pH levels. The pH scale begins at 0
and ends with 14. A reading lower than 7 is called acidic, and a reading higher
than 7 is called basic. Seven is neutral. Normal rain is slightly acidic with a
pH level of about 6.5. Rain with a pH of 5.5 is then times more acidic than
normal rain and rain with pH of 4.5 is a hundred times more acidic than normal
rain. In parts of the country, r .....
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ACID RAIN
.... that pollution from coal-powered electric
generating stations in the midwestern United States is the ultimate cause of the
severe acid-rain problem in eastern Canada and the northeastern United States.
Nor are the destructive effects of acid rain limited to the natural environment.
Structures made of stone, metal, and cement have also been damaged or destroyed.
Some of the world's great monuments, including the cathedrals of Europe and the
Colosseum in Rome, have shown signs of deterioration caused by acid rain.
Scientists use what is called the pH factor to measure the acidity or
alkalinity of liquid solutions. On a scale fr .....
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Acid Rain
.... to
another area and the acid rain could fall there. The regions effected more by
acid rain is large parts of eastern North America, Scandinavia, and central
Europe. In alot of places acid rain isn't a probelm because some soils can
neutralize the acid and it doesn't effect the crops. Areas more sensitive to
acid rain is in the western United States most of Washington all of Oregon,
sectons of California and most of Idaho. Maine, New Hampshire, Vermont and a
large section of north east Canada. The soil in these places can not neutralize
acid rain deposits, then the nutrients are stripped which means the crops in
those places .....
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