Electrostatics is the branch of physics which
deals with the study of electro charges:
The year 2006 was the golden
anniversary, or the 50th birthday, of the Dwight D. Eisenhower
National System of Interstate and Defense Highways. This system, usually
referred to as The Interstate Highway System, is a system of freeways named
after the U.S. President who supported it. The system is the largest highway
system in the world, consisting of 46,876 miles (75,440 km) of freeways. The
construction of the interstate highway system is an important part of American
history. It has played a major role in preserving and maintaining the America way of life.
The interstate highway system has
several major functions. One of its major functions is to facilitate the distribution of US good. Because the
intestate passes through many downtown areas, it plays an important role in the
distribution of almost all goods in the United States.
Nearly all products travel at least part of the way to their destination on the
Interstate System. Another major function of the interstate is to facilitate
military troop movement to and from airports, seaports, rail terminals and
other military destinations. The Interstate highways are connected to route in
the Strategic Highway Network, which is a system of highways that are vital to the U.S. Department of Defense.
Today, most of the Interstate system
consists of newly constructed highways. The longest section of the Interstate
system runs from Boston, Massachusetts to Seattle, Washington. It covers
3,020.54 miles. The shortest two-digit interstate is from Emery, North Caroline
to Greensboro, North Caroline. It covers only 12.27 miles. All state capitals
except five are served by the system. The five that are not directly served are
Juneau, AK, Dover, DE, Jefferson City, MO, Carson City, NV, and Pierre, SD. The
Interstate Highway System serves almost all major U.S. cities.
EACH Interstate highway is marked
with a red, white, and blue shield with the word “Interstate,” the name of the
state, and the route number. Interstate highways are named with one or
two-digit numbers. North-south highways are designated with odd numbers; east-west highways are
named with even numbers. The north-south Interstate highways begin in the west
with the lowest odd number; the east-west highways begin in the south with the
lowest even numbers. There all mile markers at each mile of the interstate
system, starting at the westernmost or southernmost point on the highway. Every
Interstate highway begins with the number “0”. Interchanges are numbered
according to their location on the highway in relation to mileage; an exit
between milepost 7 and milepost 8 would be designated “Exit 7.” This system
allows drivers estimate the distance to a desired exit, which a road is leading
off the highway. Despite the common acceptance of the numbering system on the
Interstate highways, some states have adopted different numbering systems. For
example, a portion of the Interstate 19 in Arizona is measured in kilometers
instead of miles since the highway goes south to Mexico.
Since the Interstate highways are
freeways-highways that do not have signs and cross streets – they have the
highest speed limits in the nation. Most interstate highways have speed limits
between 65 – 75 miles per hour (105 – 120 kilometers per hour), but some areas
in Texas and Utah have an 80 mile-per-hour (130 kilometer-per-hour) speed
limit.
The federal government primarily
funds interstate highways. However, they are owned and operated by the
individual states or toll authorities in the states. The federal government
generally funds up to 90% of the cost of an Interstate highway, while the
states pay the remainder of the cost.
Which President supported the Interstate
Highway System?
Educational planning should aim at meeting the educational needs
of the entire population of all age group. While the traditional structure of
education as a three layer hierarchy from the primary stage to the university
represents the core, we should not overlook the periphery which is equally
important. Under modern conditions, workers need to rewind, or renew their
enthusiasm, or strike out in a new direction, or improve their skills as much
as any university professor. The retired and the age have their needs as well.
Educational planning, in their words, should take care of the needs of
everyone.
Our structures of education have been built up on the
assumption that there is a terminal point to education. This basic defect has
become all the more harmful today. A UNESCO report entitled ‘learning to Be’
prepared by Edgar Faure and others in 1973 asserts that the education of
children must prepare the future adult for various forms of self – learning. A
viable education system of the future should consist of modules with different
kinds of functions serving a diversity of constituents. And performance, not
the period of study, should be the basis for credentials. The writing is
already on the wall.
In view of the fact that the significance of a commitment of
lifelong learning and lifetime education is being discussed only in recent years
even in educationally advanced countries, the possibility of the idea becoming
an integral part of educational thinking seems to be a far cry. For, to move in
that direction means such more than some simple rearrangement of the present
organization of education. But a good beginning can be made by developing Open
University programs for older learners of different categories and introducing
extension services in the conventional colleges and schools. Also these
institutions should learn to cooperate with the numerous community
organizations such as libraries. Museums, municipal recreational programs,
health services etc.
What should be the major
characteristic of the futureeducational system?
Lilly loves her town. She loves
the mall. She loves the parks. She also loves her school. Most of all, though,
Lilly loves the seasons. In her old town, it was hot all of the time.
Sometimes it is cold in Lilly’s
new town. The cold season is in winter. Once in a while it snows. Lilly has
never seen snow before. So far her, the snow is exciting as well as very
beautiful. Lilly has to wear gloves to keep her hands warm. She also wear a
scarf around her neck.
In spring, flowers bloom and the
trees turn green with new leaves. Pollen falls on the cars and windowsills and
makes Lilly sneeze. People work in their yards and mow their grass.
In summer, Lilly wears her old
shorts and sandals- the same ones she used to wear in her old town. It is hot
outside, and dogs lie in the shade. Lilly and her friends go to a pool or play
in the water sprinkler. Her father cooks hamburgers on the grill for dinner.
Lilly’s favorite season is autumn.
In autumn, the leaves on the trees turn yellow, gold, red, and orange.
Halloween comes in autumn, and this Lilly’s favorite holiday. Every Halloween,
Lilly wears a costume. Last year she wore a mouse costume. This year she will
wear a fish costume.
One evening in autumn, Lilly and
her mom are on sitting together on the porch. Mom tells Lilly that autumn is
also called “fall”. This is a good idea, Lilly thinks, because in the fall all
of the leaves fall down from the trees.
Which of the following words best
describes the way Lilly feels about living in her new town
On January 3, 1961, nine days after
Christmas, Richard Legg, John Byrnes, and Richard McKinley were killed in a
remote desert in eastern Idaho. Their deaths occurred when a nuclear reactor
exploded at a top-secret base in the National Reactor Testing Station (NRTS).
Official reports state that the explosion and subsequent reactor meltdown
resulted from the improper retraction of the control rod. When questioned about
the events that occurred there, officials were very reticent. The whole affair,
in fact, was discussed much, and seemed to disappear with time.
In order to grasp the mysterious
nature of the NRTS catastrophe, it help to know a bit about how nuclear
reactors work. After all, the generation of nuclear energy may strike many as
an esoteric process. However, given its relative simplicity, the way in which
the NRTS reactor functions is widely comprehensible. In this particular kind of
reactor, a cluster of nine-ton uranium fuel rods are positioned lengthwise
around a central control rod. The reaction begins with the slow removal of the
control ro, which starts a controlled nuclear reaction and begins to heat the
water in the reactor. This heat generates steam, which builds pressure inside
the tank. As pressure builds, the steam looks for a place to escape. The only
place this steam is able to escape is through the turbine. As it passes through
the turbine on its way out of the tank, it turns the giant fan blades and
produces energy.
On the morning of January 3, after
the machine had been shut down for the holidays, the three men arrived at the
station to restart the reactor. The control rod needed to be pulled out only
four inches to be reconnected to the automated driver. However, records
indicate that Byrnes yanked it out 23 inches, over five times the distance
necessary. In milliseconds the reactor exploded. Legg was impaled on the
ceiling; he would be discovered last. It took one week and a lead-shielded
crane to remove his body. Even in full protective gear, workers were only able
to work a minute at a time. The three men are buried in lead-lined coffins
under concrete in New York, Michigan, and Arlington Cemetery, Virginia.
The investigation took nearly two
years to complete. Did Byrnes have a dark motive? Or was it simply an accident?
Did he know how precarious the procedure was? Other operators were questioned
as to whether they knew the consequences of pulling the control rod out so far.
They responded “Of course! We often talked about what we would do if we were at
a radar station and the Russians came.
“We’d yank it out.”
Official reports are oddly
ambiguous, but what they do not explain, gossip does. Rumors had it that there
was tension between the men because Byrnes suspected the other two of being
involved with his young wife. There is little doubt than he, like the other
operators, knew exactly what would happen when he yanked the control rod.
Based on information in the
passage, it can be inferred that, after the explosion and subsequent meltdown,
the reactor was
A great deal of discussion countries as to the real extent
of global environmental degradation and its implicational. What few people
challenge however is that the renewable natural resources of developing
countries are today subject to stresses of unprecedented magnitude. These
pressures are bought about, in part, by increased population and the quest for
an ever expanding food supply. Because the healthy, nutrition and general
well-being of the poor majority are directly depends on the integrity and
productivity of their natural resources, the capability of governments to manage
them effectively over the long term becomes of paramount importance.
Developing countries are becoming more aware of the ways in
which present and future economic development must build upon a sound and
sustainable natural resources base. Some are looking at our long tradition in
environmental protection and are receptive to US assistance which recognizes
the uniqueness of the social and ecological systems in these tropical
countries. Developing countries recognize the need to improve their capability
to analyze issues and their own natural resource management. In February 1981,
for example AID funded a national Academy of Sciences panel to advise Nepal on
their severe natural resource degradation problems. Some countries such as
Senegal, India, Indonesia and Thailand, are now including conservation concerns
in their economic development planning process.
Because so many governments of developing nations have
recognized the importance of these issues, the need today is not merely one of
raising additional consciousness, but for carefully designed and sharply
focused activities aimed at management regimes that are essential to the
achievement of sustained development.
Some of the developing countries of Asia and Africa have
The
history of civilization shows how man always has to choose between making the
right and wrong use of the discoveries science. This has never been more true
than in our own age. In a brief period amazing discoveries have been made and
applied to practical purpose.
It
would be ungrateful not to recognized how immense are the boons which science
has given to mankind. It has brought within the reach of multitudes benefits
and advantages which only a short time ago were the privilege of the few. It
has shown how malnutrition, hunger and disease can be overcome. It has not only
lengthened life but it has depended its quality. Fields of the work of science
the ordinary and fuller life than was ever possible to his grandparents.
What
on the whole, has science doe mankind?
Right now, I am looking at a shelf
full or relics, a collection of has-beens, old-timers, antiques, fossils. Right
now I am lolling at a shelf full of books. Yes that’s right. If you have some
spare cash (the doing rate is about $89) and are looking to enhance your reading
experience, then I highly suggest you consider purchasing an e-reader.
E-readers are replacing the books of old, and I welcome them with open arms (as
you should).
If you haven’t heard of an e-reader
and don’t know what it is, then please permit the following explanation. An
e-reader is a device that allows you to read e-books. An e-book is a
book-length publication in digital form, consisting of text, images, or both,
and produced on, published through, and readable on computers or other
electronic devices. Sometimes the equivalent of a conventional printed book,
e-books can also be born digital. The Oxford Dictionary or English defines the
e-book as “an electronic version of a printed book, “but e-book can and do
exist without any printed equivalent.
So now you know what an e-reader is.
But you still may be wondering why they put printed books to shame. E-readers
are superior to printed books because they save space, are environmentally friendly,
and provide helpful reading tips and tools that printed books do not.
E-readers are superior to printed
books because they save space. The average e-reader can store thousands of
digital book, providing a veritable library at your fingertips. What is more,
being the size and weight of a thin hardback, the e-reader itself is relatively
petite. It is easy to hold and can fit in a pocketbook or briefcase easily. This
makes handling ponderous behemoths such as War and Peace, Anna Karenina, and
Les Miserables a breeze. Perhaps the only drawback to the space-saving aspect
of an e-reader is that it requires you to find new things to put on your
shelves.
In addition, e-readers are superior
to books because they are environmentally friendly. The average novel is about
300 pages long. So, if a novel is printed 1000 times, it will use 300,000
pieces of paper. That’s a lot of paper! If there are about 80,000 pieces of
paper in a tree, this means it takes almost 4 trees to make these 1000 books.
Now, we know that the average bestseller sells about 20,000 copies per week.
That means that it takes over 300 trees each month to sustain this rate. And
for the super bestsellers, these figures increase dramatically. For example,
the Harry Potter book series has sold over 450 million copies. That’s about 2
million trees! Upon viewing these figures, it is not hard to grasp the severe
impact of printed books on the environment. Since e-reader use no trees, they
represent a significant amount of preservation in terms of the environment and
its resources.
Finally, e-reader are superior to
books because they provide helpful reading tips and tolls that printed books do
not. The typical e-reader allows its user to customize letter size, font, and
line spacing. It also allows highlighting and electronic bookmarking.
Furthermore, it grants users the ability to get an overview of a book and then
jump to a specific electronic bookmarking. Furthermore, it grants users the
ability to get an overview of a book and then jump to a specific location based
on that overview. While these are all nice features, perhaps the most helpful
of all is the ability to get dictionary definitions at the touch of a finger.
On even the most basic e-reader, users can conjure instant definitions without
having to hunt through a physical dictionary.
It can be seen that e-readers are
superior to printed books. They save space, are environmentally friendly, and
provide helpful reading tips and tools that printed books do not. So what good
are printed books? Well, they certainly make nice decorations.
As used in paragraph 5, which is the
best synonym for ‘sustain’?
Paul’s wife knows Paul loves to read cookbooks. She decides to
get him one for his birthday. Paul tells her he will try to make a new recipe
for three days in a row. On Monday, Paul makes blueberry pancakes for
breakfast. He gets the blueberries from the farmers’ market. On Tuesday, Paul
makes beef soup for dinner. He puts in cubes of beef, carrots, and onions. The
recipe calls for cream, but Paul does not cream. He uses water instead. On Wednesday,
Paul makes a tomato salad with cucumbers and onions. He picks the cucumbers and
tomatoes from his garden. He likes this dish best. It was also the easiest for
him to make.
What does Paul get cucumbers and tomatoes?
It is easy to make delicious-looking hamburger at home. But would this
hamburger still look delicious after it sat on your kitchen table under very
bright lights for six or seven hours? if someone took a picture or made a video
of this hamburger after the seventh hour, would anyone want to eat it? More
importantly, do you think you could get millions of people to pay money for
this hamburger? These are the questions that fast food companies worry about
when they produce commercials or print ads for their products. Video and photo
shoots often last many hours. The lights that the photographers use can be
extremely hot. These conditions can cause the food to look quite unappealing to
potential consumers. Because of this, the menu items that you see in fast food
commercials are probably not actually edible.Let's use the hamburger as an
example. The first step towards building the commercial hamburger is the bun.
The food stylist--a person employed by the company to make sure the products
look perfect--sorts through hundreds of buns until he or she finds one with no
wrinkles. Next, the stylist carefully rearranges the sesame seeds on the bun
using glue and tweezers for maximum visual appeal. The bun is then sprayed with
a waterproofing solution so that it will no get soggy from contact with other
ingredients, the lights, or the humidity in the room.Next, the food stylist
shapes a meat patty into a perfect circle. Only the outside of the meat gets
cooked-the inside is left raw so that the meat remains moist. The food stylist
then paints the outside of the meat patty with a mixture of oil, molasses, and
brown food coloring. Grill marks are either painted on or seared into the meat
using hot metal skewers.Finally, the food stylist searches through dozens of
tomatoes and heads of lettuce to find the best-looking produce.One leaf of the
crispest lettuce and one center slice of the reddest tomato are selected and
then sprayed with glycerin to keep them looking fresh. So the next time you see
a delectable hamburger in a fast food commercial, remember: you are actually
looking at glue, paint, raw meat , and glycerin. Are you still hungry?
Question:
According to the passage, fast food companies use things like glue and glycerin on hamburgers that appear in advertisements because
I. no one actually has to eat the food used in the commercial
II.it is important that people who see advertisement would pay for the food being advertised
III.filming a commercial or a print ad can take a very long time
