|
Volunteer
Tutor Tips - Page One
by
Debra Sea
Your Sense of Taste
Happy belated Easter for those of you who celebrate the holiday!
Happy last Sunday of March for those that don’t! As we continue on
with exploring the senses, it seems especially appropriate to write
about the sense of taste – with all of the chocolate that has found
a temporary home at my house.
The following paragraphs describe a taste and smell experiment that
you can conduct with your students. All you need is a roll of
lifesavers or other fruit flavored candy. The other paragraphs
describe the relationship between the sense of taste and sense of
smell, which at times may get too technical for your students. As
always, use whatever makes sense.
Your Sense of Taste
Relationship between taste and smell:
Think of all the wonderful sensations taste can impart to us - the
delicious Honey Baked Ham, au gratin potatoes, Brussels sprouts of an
Easter celebration. Coffee, chocolate, lush strawberries - the list
goes on and on! Receptors on our tongues bind to chemicals in our food
and relay the information about the chemicals to our brain.
Surprisingly, all those wonderful tastes are transmitted to our brains
through only four types of receptors on our tongues – those for
sweet, sour, salt and bitter. How can this be so?
Life Savers or other flavored candies:
Work with the student or have the student work in pairs. One person
closes their eyes and holds their nose, while another feeds them a
lifesaver, without telling them the flavor. The student should try to
guess what flavor the lifesaver is, without letting go of their nose.
Observations should proceed for a minute or so as the candy dissolves
in their mouth. Is there any change in the taste of the candy from the
beginning to the end of the experiment? Describe the tastes.
There are only four different types of true tastes -sour, sweet,
salt and bitter. Each of these types of receptors bind to a specific
structure of a "taste" molecule. Sweet receptors recognize
hydroxyl groups (OH) in sugars, sour receptors respond to acids (H+),
the metal ions in salts (such as the Na+ in table salt. Alkaloids
trigger the bitter receptors alkaloids are nitrogen containing bases
with complex ring structures which have significant physiological
activity. Some examples of alkaloids are nicotine, quinine, morphine
and strychnine. Many poisons are alkaloids, and the presence of
receptors for the bitter taste at the back of the tongue may help to
trigger the vomiting response.
Approximately 80-90% of what we perceive as "taste"
actually is due to the sense of smell. Just think about how dull food
tastes when you have a head cold or a stuffed up nose. At first
students may not be able to tell the specific flavor of the candy,
just perhaps a sensation of sweetness or sourness. If students are
patient, some may notice that as the candy dissolves they can identify
the specific taste. This is because some scent molecules volatilize
and travel up to the olfactory organ through a "back door" -
that is up a passage at the back of the throat and to the nose. Since
we can only taste four different true "tastes", it is
actually smell that allows us to experience the complex, mouth
watering flavors we associate with our favorite foods.
by Karen Kalumuck
Copied from:
http://www.exploratorium.edu/snacks/your_sense_of_taste/
Back
to Top
Hearing
The tutor tips this month continue on a sensory theme, with the
sense of hearing the next topic. The mechanics of how we hear is
briefly described in the paragraphs below and is followed by a fun
exercise. Although the description of how we hear is technical with a
few new terms, it is fairly straightforward and might be useful while
viewing a diagram of the ear.
Find a good diagram at:
http://www.geocities.com/thmshelp/ear.html )
The exercise describes how to conduct
in 4/4 time. – try it with your favorite music.
The Ear
The ear is an organ for hearing and balance. It consists of three
parts: the outer ear, the middle ear,
and the inner ear. The outer and middle ear mostly collect and
transmit sound. The inner ear analyzes
sound waves and contains an apparatus that maintains the body's
balance. The outer ear is the part, which is visible and is made of
folds of skin and cartilage. It leads into the ear canal, which is
about one inch long in adults and is closed at the inner end by the
eardrum. The eardrum is a thin, fibrous, circular membrane covered
with a thin layer of skin. It vibrates in response to changes in the
air pressure that constitute sound. The eardrum separates the outer
ear from the middle ear. The middle ear is a small cavity, which
conducts sound to the inner ear by means of three tiny, linked,
movable bones called "ossicles." These are the smallest
bones in the human body and are named for their shape. The hammer (malleus)
joins the inside of the eardrum. The anvil (incus) has a broad joint
with the hammer and a very delicate joint to the stirrup (stapes). The
base of the stirrup fills the oval window, which leads to the inner
ear. The inner ear is a very delicate series of structures deep within
the bones of the skull. It consists of a maze of winding passages,
called the "labyrinth". The front (cochlea) is a tube
resembling a snail's shell and is concerned with hearing. The rear
part is concerned with balance.
"Keeping one's ear to the ground" means to keep up on
current trends. The phrase dates back to early 20th century
politicians and comes from frontier lore of both pioneers and Indians,
who listened for the sound of approaching hoof beats.
From: http://www.innerbody.com/text/nerv04.html
Fun exercise:
Pretend that you are a conductor. Here's how to follow the
conducting pattern for one of the more common time signatures (4/4).
Difficulty Level: Average Time required: 5 minutes
Here's How:
You can conduct with just your hand or with a baton. Orchestral
conductors usually use batons. Imagine a 'square' in front of your
body. For the purposes of this exercise, put the top of the 'square'
in front of your eyes, and the bottom somewhere above your waist.
Start with your right hand (holding baton if desired) in front of your
face, in the 'center' of the top line of the 'square'. 'Drop' your
hand straight to the bottom of the 'square' and stop. This is the
'downbeat'. For the next beat, move your hand to the left, to another
imaginary 'corner' and stop. For the next beat, move your hand to the
right to another imaginary 'corner' and stop. For the next beat, move
your hand to the original position in front of your face. Try this
basic pattern a few times. Allow your hand to 'bounce' a bit on the
bottom of the 'square' and turn up slightly at the 'corners'. Take out
the 'stops' and move your hand continuously, all the time counting (1,
2, 3, 4) and making sure your hand 'arrives' at each 'corner' at the
proper time. Try singing 'Mary had a little lamb' slowly, and
conducting. Figure out how many beats every note should get (hint: the
first 'lamb' gets two beats).
Tips:
Vary the pattern according to the results you want. Try making the
pattern a different size, conducting 'smoothly' (legato), faster or
slower. Be creative. Once you have the pattern down, add your other
hand. Try 'mirroring', or use it to indicate volume. The next time you
are at a concert (or see one on T.V.), watch the conductor to see how
they vary their conducting.
Copied from the website www.about.com
Back
to Top
'Round the Maypole : Celebrating May Day
May Day is celebrated around the world. It is a festival of
happiness, joy and the coming of summer.
Come all ye lads and lassies
Join in the festive scene
Come dance around the maypole
That will stand upon the green.
Background:
Beltane (Bright Fire) or May Day is the first day of summer, and
once marked when cattle were taken to pasture to graze after being
blessed with protective bonfire smoke. In later agricultural
societies, when people leapt over bonfires, the height of their leaps
was supposed to forecast the height of crops. While a German farmer's
calendar of 1493 shows all other months of the year illustrated by
hard-working farm folk, May alone represents leisure time—luxuriating
lovers. A man attentively plays a lute for a bathing woman. Beltane
especially celebrated love, attraction, courtship and mating--that
yearly groundswell of desire we know as "spring fever." Long
before our current high school prom king and queen, villages elected a
young, attractive couple to represent the King and Queen of the May,
also known as John Thomas and Lady Jane. Folk danced around the May
pole, the skyward symbol of life; they gathered flowers and spent
nights together under the stars in the forest. Beltane is the time of
milk and honey, the primary pagan time of pleasure, of blossoming and
blooming, of desire and satisfaction, so the cow and the bee are both
significant symbols for this celebration. The cow's miraculous ability
to create great amounts of milk and the bee's creation of honey, the
sweetest food on earth, were absolutely magical. Large oatcakes,
called bannocks, were eaten as part of the festivities. Traditionally
a portion of the cake was burned or marked with ashes. The unfortunate
soul who received the marked piece was sacrificed to the gods. More
recently, the recipient simply jumped over a small fire 3 times
instead. May Day traditionally features flowers, fruits and other
sweets, and dancing, especially around a May pole with streamers.
Background for the Teacher:
Italy: The people of ancient Rome honored Flora, the goddess
of flowers and springtime, with a festival called Florialia. The
goddess was represented by a small statue wreathed in garlands. A
procession of singers and dancers carried the statue past a sacred
blossom-decked tree. Later, festivals of this kind spread to other
lands conquered by the Romans. Today May Day is known as the happiest
day of the year in Italy. All varieties of flowers are placed in and
around places of worship. Boys often serenade their sweethearts on
this day.
Switzerland: In Switzerland, a May pine tree is often placed
under a girl's window.
Germany: German boys often secretly plant May trees in front
of the windows of their sweethearts.
Czechoslovakia: At night, boys at night place maypoles
before their sweethearts' windows.
England: The festivals begun in Italy reached their height
in England during the Middle Ages. On the first day of May, English
villagers awakened at daybreak to roam the countryside gathering
blossoming flowers and branches. A towering maypole was set up on the
village green. This pole, usually made of the trunk of a tall birch
tree, was decorated with bright field flowers. The villagers then
danced and sang around the maypole, accompanied by a piper. Usually
the Morris dance was performed by dancers wearing bells on their
colorful costumes. Often the fairest maiden of the village was chosen
queen of the May. Sometimes a May king was also chosen. These two led
the village dancers and ruled over the festivities. In Elizabethan
times, the king and queen were called Robin Hood and Maid Marian.
Maypoles were usually set up for the day in small towns, but in
London and the larger towns they were erected permanently. They were
considered heathen eyesores by the Puritans. May Day festivals became
so gay and wild that the Puritans were able to force the government to
forbid them. They soon sprang up again, however, and still continue in
many English villages.
Today in London children go from house to house bringing flowers in
return for pennies. After the pennies are collected, they are thrown
into a wishing well. Special wishes are made with hopes they will be
granted. The pennies are later collected and given to different
charitable organizations.
France: The French considered the month of May sacred to the
Virgin Mary, so they enshrined young girls as May queens in their
churches and May queens led processions in honor or the Virgin Mary.
Cows also play important roles in French May Day festivals. Bunches of
flowers are tied and draped around their tails as they are led in
parades. Everyone tries to touch the cows because it is believed to be
good luck.
On May Day morning, everyone drinks milk still warm from the
milking to assure good luck during the year.
Greece: Greek children set out early in the morning to
search for the first swallow of spring. When the bird is located, the
children go from door to door singing songs of spring. For their
efforts, neighbors offer special treats to eat, such as fruits, nuts,
and cakes.
United States: The Puritans frowned on May Day, so the day
has never been celebrated with as much enthusiasm in the United States
as in Great Britain. But May Dayis celebrated by dancing and singing
around a maypole tied with colorful streamers or ribbons. The dancers
twist the streamers around the pole to make a pretty pattern to be
enjoyed by all. On college campuses a May queen is often chosen and
the old dances are performed around a maypole. Children often gather
spring flowers, place them in handmade paper May baskets and hang them
on the doorknobs of relatives and friends--they ring the doorbells and
run away, leaving their flowers as a surprise. At May Day parties,
children select May queens, dance around the maypole, and sing May Day
songs. These festivals often occur in parks or schools.
May Day Trivia: The Traditional May Day celebrations were
pre-Christian agricultural festivals. Eventually the significance was
lost and the practices survived merely as popular festivities. A
widespread superstition held that washing the face in the May Day
morning dew would beautify the skin. In Hawaii, May Day is Lei Day.
Everyone gives the gift of a lei to another, putting it around the
receiver's neck and accompanying it with the traditional kiss. Lei Day
began in 1928. Some Hawaiian celebrations are complete with pageants,
a Lei Queen and her court. In 1889, a congress of world Socialist
parties held in Paris voted to support the U.S. labor movement's
demand for an 8-hour day. It chose May 1, 1890, as a day of
demonstrations in favor of the 8-hour day. Afterward, May 1 became a
holiday called Labor Day in many nations. It resembles the September
holiday in the U.S. The holiday is especially important in socialist
and Communist countries--when political demonstrations are held.
Last revised 4-9-02.
Copied from: http://www.umkc.edu/imc/mayday.htm
Back
to Top
The superstitions that baseball players have
One of my earliest memories is of my Grandmother avidly listening
to the Minnesota Twins play on her brown leather covered a.m. radio.
Although technology has come a long way, what hasn't changed is the
superstitions that baseball players have. Read through this list and
then watch a portion of a baseball game with your student. You will be
amazed at how many instances of superstitious behavior you will
identify from the list.
- A "hoodoo" ball is one the pitcher has spit on so it
will slip off the bat.
- A ball player on coming off the field will always lay his glove
in the same place for luck in hitting.
- A baseball player on going to the batter's box will spit on the
ground and rub his foot in it for luck in batting.
- A good baseball player will step on first base for luck in
reaching the base the next time he bats.
- A pitcher will think it is unlucky, if the second baseman throws
the ball to him.
- A third baseman will touch his base on going out and coming in
from the field so that he will be lucky in batting.
- A third baseman who makes the third "put out" will
touch his base for luck, especially if he is the next batter up.
- Always wear a red necktie to win in a baseball game.
- Always whirl your bat around your head three times for good luck
when you go to bat.
- An itching hand while playing baseball means that you will catch
the next foul ball.
- An outfielder will touch second base after the game so that he
will reach that base on the day following.
- An outfielder muffing his first fly indicates that his team will
win the game.
- Baseball teams always lay their gloves down in a row and the
player who does not put his glove in its proper place will have
bad luck.
- By common consent and with one impulse everyone stands up to
stretch while two sides are changing places at the end of the
seventh inning.
- By spitting on the ball a pitcher can make the batter miss it.
- Changing bats after you have taken one is unlucky.
- If baseball player starts out upon the field, forgets something
and returns for it, it will be unlucky in the game.
- If a baseball player is called back from the field and he
returns, he will have bad luck.
- If a baseball team on its way to the ball park meets a load of
beer kegs, it means good luck. If a batter fouls the first ball
pitched to him, it is a sign that he will strike out.
- If a batter on returning from home plate throws his bat down and
it crosses another bat, it will bring him bad luck.
- If a pitcher rubs slippery elm bark on his hands, he will cause
the batter to miss the ball.
- If a pitcher walk around another pitcher to start the inning
off, it gives them the other pitcher) the jinx and causes them to
lose the game.
- It is a sign that he will win, if the pitcher finds a toad in
the outfield before the game starts.
- It is unlucky for a pitcher to drop a ball when about to pitch
it.
- It is unlucky to let anyone from the visiting team sit on the
home team's bench.
- It is unlucky to drop a bat between home plate and the catcher.
- Keep a buckeye in your pocket while paying baseball and you will
have good luck.
- Never cross your bat with another batter when on your way to the
home plate or it will bring you bad luck.
- Some baseball players keep their caps turned backward for luck.
- Some baseball players will step on home plate before leaving the
park in order to have good luck the next day.
- Some baseball players will turn around three times in the
batter's box for good luck.
- Spit on the end of your bat for good luck.
- Stick a piece of chewing gum on the lower end of your bat and
you will make a good hit.
- Striking out the first man who comes to bat signifies that the
pitcher will win his game.
- The batter who passes between home plate and the pitcher's box
when going to bat will be hit by a pitched ball.
- The last half of the seventh inning is known as the "lucky
seventh" for the home team.
- To be put out at third base is unlucky.
- To strike out the first batter indicates that the pitcher will
lose his game.
- When an outfielder goes to the outfield, he will kick the same
base each time he passes it for luck.
- When you want to make a hit, put dirt on the bat.
Back to Top
The History of Mother's Day
By Cheri Sicard
While many people might assume that Mother's Day is a holiday
invented by the fine folks at Hallmark, it's not so. The earliest
Mother's Day celebrations can be traced back to the spring
celebrations of ancient Greece, honoring Rhea, the Mother of the Gods.
The Romans called their version of the event the Hilaria, and
celebrated on the Ides of March by making offerings in the temple of
Cybele, the mother of the Gods. Early Christians celebrated the
festival on the fourth Sunday of Lent in honor of the Virgin Mary, the
Mother of Christ.
The Mother Behind Mother's Day
The story behind Ana Jarvis's mother, one Anna Maria Reeves Jarvis,
is just as interesting than the story of Mother's Day itself. The
elder Mrs. Jarvis organized a series of "Mother's Work
Camps" in West Virginia to improve health and sanitary conditions
before the civil war. During the war she declared neutrality for her
organizations and regularly aided soldiers in need on both sides of
the struggle.
In more recent times, relatively speaking – England in the
1600s--the celebration was expanded to include all mothers with
"Mothering Sunday" being celebrated on the 4th Sunday of
Lent (the 40 day period leading up to Easter). Besides attending
church services in honor of the Virgin Mary, children returned home
from the cities with gifts, flowers, and special Mothering Day cakes
that were important parts of the celebration.
Mother's Day festivities in the United States date back to 1872
when Julia Ward Howe (her other claim to fame was writing the lyrics
for the "Battle Hymn of the Republic") suggested the day be
dedicated to peace. Ms. Howe would hold organized Mother's Day
meetings in Boston, Massachusetts ever year.
In 1907, Ana Jarvis, a Philadelphia, Pennsylvania schoolteacher,
furthered the cause by beginning a campaign to establish a national
Mother's Day. Ms. Jarvis persuaded her mother's church in Grafton,
West Virginia to celebrate Mother's Day on the second anniversary of
her mother's death, which happened to be on the 2nd Sunday of May that
year. By the following year, Mother's Day was also being celebrated in
Philadelphia.
Not content to rest on her laurels, Ms. Jarvis and her supporters
began to write to ministers, businessman, and politicians in their
quest to establish a national Mother's Day and in 1912, the Mother's
Day International Association was incorporated for the purpose of
promoting the day and its observance. By 1911, Mother's Day was
celebrated in almost every state in the nation. In 1914, President
Woodrow Wilson made it official by proclaiming Mother's Day a national
holiday that was to be held each year on the 2nd Sunday of May.
It is somewhat ironic that after all her efforts, Ana Jarvis ended
up growing bitter over what she perceived as the corruption of the
holiday she created. She abhorred the commercialization of the holiday
and grew so enraged by it that she filed a lawsuit to stop a 1923
Mother's Day festival and was even arrested for disturbing the peace
at a war mothers' convention where women sold white carnations --
Jarvis' symbol for mothers -- to raise money. Ana Jarvis' story is not
a happy one. Things went from bad to worse and she eventually lost
everything and everyone that was close to her and died alone in a
sanatorium in 1948. Shortly before her death, Jarvis told a reporter
she was sorry she had ever started Mother's Day.
Ana may be gone, but Mother's Day lives on, regardless of whether
it meets her approval. Many countries throughout the world celebrate
Mother's Day at various times throughout the year, but some such as
Denmark, Finland, Italy, Turkey, Australia, and Belgium also celebrate
Mother's Day on the second Sunday of May.
Copied from:
http://www.fabulousfoods.com/holidays/momsday/momdayhistory.html
Honor the anniversary on the Mount St. Helens eruption this
Saturday, May 18th.
Back to Top
MOUNT ST. HELENS ERUPTS:
At 8:32 a.m. PDT, Mount St. Helens, a volcanic peak in southwestern
Washington, suffered a massive eruption, killing 57 people and
devastating some 210 square miles of wilderness. Called Louwala-Clough,
or "the Smoking Mountain," by Native Americans, Mount St.
Helens is located in the Cascade Range and stood 9,680 feet before its
eruption. The volcano has erupted periodically during the last 4,500
years, and the last active period was between 1831 and 1857.
On March 20, 1980, noticeable volcanic activity began again with a
series of earth tremors centered on the ground just beneath the north
flank of the mountain. These earthquakes escalated, and on March 27 a
minor eruption occurred, and Mount St. Helens began emitting steam and
ash through its crater and vents.
Small eruptions continued daily, and in April people familiar with
the mountain, noticed changes to the structure of its north face. A
scientific study confirmed that a bulge more than a mile in diameter
was moving upward and outward over the high north slope by as much as
six feet per day. The bulge was caused by an intrusion of magma below
the surface, and authorities began evacuating hundreds of people from
the sparsely settled area near the mountain. A few people refused to
leave.
On the morning of May 18, Mount St. Helens was shaken by an
earthquake of about 5.0 Richter magnitude, and the entire north side
of the summit began to slide down the mountain. The giant landslide of
rock and ice, one of the largest recorded in history, was followed and
overtaken by an enormous explosion of steam and volcanic gases, which
surged northward along the ground at high speed. The lateral blast
stripped trees from most hill slopes within six miles of the volcano
and leveled nearly all vegetation for as far as 12 miles away.
Approximately 10 million trees were felled by the blast.
The landslide debris, liquefied by the violent explosion, surged
down the mountain at speeds in excess of 100 miles per hour. The
avalanche flooded Spirit Lake and roared down the valley of the Toutle
River for a distance of 13 miles, burying the river to an average
depth of 150 feet. Mudflows, pyroclastic flows, and floods added to
the destruction, destroying roads, bridges, parks, and thousands more
acres of forest. Simultaneous with the avalanche, a vertical eruption
of gas and ash formed a mushrooming column over the volcano more than
12 miles high. Ash from the eruption fell on Northwest cities and
towns like snow and drifted around the globe within two weeks.
Fifty-seven people, thousands of animals, and millions of fish were
killed by the eruption of Mount St. Helens.
By late in the afternoon of May 18, the eruption subsided, and by
early the next day it had essentially ceased. Mount St. Helens'
volcanic cone was completely blasted away and replaced by a
horseshoe-shaped crater-the mountain lost 1,700 feet from the
eruption. The volcano produced five smaller explosive eruptions during
the summer and fall of 1980 and remains active today. In 1982,
Congress made Mount St. Helens a protected research area.
Copied from www.historychannel.com
Back
to Top
Memorial Day is May 27, 2002.
Memorial Day is much more than a three-day weekend that marks the
beginning of summer. To many people, especially the nation's thousands
of combat veterans, this day, which has a history stretching back all
the way to the Civil War, is an important reminder of those who died
in the service of their country.
Memorial Day was originally known as Decoration Day because it was
a time set aside to honor the nation's Civil War dead by decorating
their graves. It was first widely observed on May 30,1868, to
commemorate the sacrifices of Civil War soldiers, by proclamation of
General John A. Logan of the Grand Army of the Republic, an
organization of former sailors and soldiers.
On May 5, 1868, Logan declared in General Order No. 11 that:
The 30th of May, 1868, is designated for the purpose of strewing
with flowers, or otherwise decorating the graves of comrades who died
in defense of their country during the late rebellion, and whose
bodies now lie in almost every city, village, and hamlet churchyard in
the land. In this observance no form of ceremony is prescribed, but
posts and comrades will in their own way arrange such fitting services
and testimonials of respect as circumstances may permit. During the
first celebration of Decoration Day, General James Garfield made a
speech at Arlington National Cemetery, after which 5,000 participants
helped to decorate the graves of the more than 20,000 Union and
Confederate soldiers buried in the cemetery.
This 1868 celebration was inspired by local observances of the day
in several towns throughout America that had taken place in the three
years since the Civil War. In fact, several Northern and Southern
cities claim to be the birthplace of Memorial Day, including Columbus,
Mississippi; Macon, Georgia; Richmond, Virginia; Boalsburg,
Pennsylvania; and Carbondale, Illinois.
In 1966, the federal government, under the direction of President
Lyndon Johnson, declared Waterloo, New York, the official birthplace
of Memorial Day. They chose Waterloo—which had first celebrated the
day on May 5, 1866—because the town had made Memorial Day an annual,
community-wide event during which businesses closed and residents
decorated the graves of soldiers with flowers and flags.
By the late 1800s, many communities across the country had begun to
celebrate Memorial Day and, after World War I, observances also began
to honor those who had died in all of America's wars. In 1971,
Congress declared Memorial Day a national holiday to be celebrated the
last Monday in May. (Veterans Day, a day set aside to honor all
veterans, living and dead, is celebrated each year on November 11.)
Today, Memorial Day is celebrated at Arlington National Cemetery
with a ceremony in which a small American flag is placed on each
grave. Also, it is customary for the president or vice-president to
give a speech honoring the contributions of the dead and lay a wreath
at the Tomb of the Unknown Soldier. About 5,000 people attend the
ceremony annually.
Several Southern states continue to set aside a special day for
honoring the Confederate dead, which is usually called Confederate
Memorial Day:
Mississippi: Last Monday in April
Alabama: Fourth Monday in April
Georgia: April 26
North Carolina: May 10
South Carolina: May 10
Louisiana: June 3
Tennessee: (Confederate Decoration Day): June 3
Texas: (Confederate Heroes Day): January 19
Virginia: Last Monday in May
Copied from http://www.historychannel.com/
Continuing on with our survey of common every day items - the next
item of interest is the can opener.
To make this more helpful, I have included information about reading
food labels for your students. Bring a canned food item to your
tutoring session and review the label with your student. For more
information, visit the Food and Drug Administration site http://www.fda.gov/opacom/backgrounders/foodlabel/newlabel.html
Back
to Top
The Can Opener
The first practical can opener was developed 50 years after the
birth of the metal can. Canned food was invented for the British Navy
in 1813. Made of solid iron, the cans usually weighed more than the
food they held!
The inventor, Peter Durand, was guilty of an incredible oversight.
Though he figured out how to seal food into cans, he gave little
thought to how to get it out again. Instructions read: "Cut round
the top near the outer edge with a chisel and hammer." Only when
thinner steel cans came into use in the 1860s could the can opener be
invented.
The first (patented in 1858) devised by Ezra Warner of Waterbury,
Connecticut, looked like a bent bayonet. Its large curved blade was
driven into a can’s rim, and then forcibly worked around its edge.
Stranger yet, this first type of can opener never left the grocery
store. A clerk had to open each can before it was taken away!
William Lyman of the United States invented the modern can opener,
with a cutting wheel that rolls around the rim, in 1870. The only
change from the original patent was the introduction of a serrated
rotation wheel by the Star Can Company of San Francisco in 1925. The
basic principle continues to be used on the modern can openers, and it
was the basis of the first electric can opener, introduced in December
1931.
Copied from: http://www.ideafinder.com/
The Food Label
Grocery store aisles are avenues to greater nutritional knowledge.
Under regulations from the Food and Drug Administration of the
Department of Health and Human Services and the Food Safety and
Inspection Service of the U.S. Department of Agriculture, the food
label offers more complete, useful and accurate nutrition information
than ever before.
With today's food labels, consumers get:
-nutrition information about almost
every food in the grocery store
-distinctive, easy-to-read formats that enable consumers to more
quickly find the information they need to make healthful food
choices
-information on the amount per serving of saturated fat,
cholesterol, dietary fiber, and other nutrients of major health
concern
-nutrient reference values, expressed as % Daily Values, that help
consumers see how a food fits into an overall daily diet
-uniform definitions for terms that describe a food's nutrient
content--such as "light," "low-fat," and
"high-fiber"--to ensure that such terms mean the same for
any product on which they appear
-claims about the relationship between a nutrient or food and a
disease or health-related condition, such as calcium and
osteoporosis, and fat and cancer. These are helpful for people who
are concerned about eating foods that may help keep them healthier
longer.
-standardized serving sizes that make nutritional comparisons of
similar products easier
-declaration of total percentage of juice in juice drinks. This
enables consumers to know exactly how much juice is in a product.
from: http://www.fda.gov/opacom/backgrounders/foodlabel/newlabel.html
Back
to Top
|