Part 14
The theory of lunar eclipses will be understood from Fig. 1, where _S_ represents the sun, _E_ the earth, and _M_ the moon. If the sun were a point of light there would be a sharply outlined shadow or umbra only, but since the luminous surface is so large, there is always a region in which the light of the sun is only partially cut off by the earth, which region is known as the penumbra (_P P_). Hence during a lunar eclipse the moon first enters the penumbra, then is totally eclipsed by the umbra, then emerges through the penumbra again.
An eclipse of the sun is an occultation of the whole or part of the face of the sun occasioned by an interposition of the moon between the earth and the sun; thus all eclipses of the sun happen at the time of new moon.
Fig. 2 is a diagram showing the principle of a solar eclipse. The dark or central part of the moon’s shadow, where the sun’s rays are wholly intercepted, is here the umbra, and the light part, where only a part of them are intercepted, is the penumbra; and it is evident that if a spectator be situated on that part of the earth where the umbra falls there will be a total eclipse of the sun at that place; in the penumbra there will be a partial eclipse, and beyond the penumbra there will be no eclipse.
As the earth is not always at the same distance from the moon, and as the moon is a comparatively small body, if an eclipse should happen when the earth is so far from the moon that the moon’s shadow falls short of the earth, a spectator situated on the earth in a direct line between the centers of the sun and moon would see a ring of light around the dark body of the moon; such an eclipse is called annular, as shown in Fig. 3; when this happens there can be no total eclipse anywhere, because the moon’s umbra does not reach the earth.
An eclipse can never be annular longer than twelve minutes twenty-four seconds, nor total longer than seven minutes fifty-eight seconds; nor can the entire duration of an eclipse of the sun ever exceed two hours.
An eclipse of the sun begins on the western side of his disc and ends on the eastern; and an eclipse of the moon begins on the eastern side of her disc and ends on the western.
The average number of eclipses in a year is four, two of the sun and two of the moon; and as the sun and moon are as long below the horizon of any particular place as they are above it, the average number of visible eclipses in a year is two, one of the sun and one of the moon.
What are Dreams?
The dictionary tells us that a dream is a train of vagrant ideas which present themselves to the mind while we are asleep.
We know that the principal feature, when we are dreaming, is the absence of our control over the current of thought, so that the principal of suggestion has an unlimited sway. There is usually a complete want of coherency in the images that appear in dreams, but when we are dreaming this does not seem to cause any surprise.
Occasionally, however, intellectual efforts are made during sleep which would be difficult to surpass when awake.
It is said that Condillac often brought to a conclusion in his dreams, reasonings on which he had been employed during the day; and that Franklin believed that he had been often instructed in his dreams concerning the issue of events which at that time occupied his mind. Coleridge composed from two to three hundred lines during a dream; the beautiful fragment of “Kubla Khan,” which was all he had committed to paper when he awoke, remaining as a specimen of that dream poem.
The best thought points to the fact that dreams depend on natural causes. They generally take their rise and character from internal bodily impressions or from something in the preceding state of body or mind. They are, therefore, retrospective and resultant, instead of being prospective or prophetic. The latter opinion has, however, prevailed in all ages and among all nations, and hence the common practice of divination or prophesying by dreams, that is, interpreting them as indications of coming events.
What Makes Our Teeth Chatter?
When one is cold there is apt to be a spasm of shivering over which the brain does not seem to have any control. The spasm causes the muscles of the jaw to contract very quickly and as soon as they are contracted, they let the jaw fall again of its own weight. This occurring many times in rapid succession is what causes the teeth to chatter.
There are two kinds of spasms, “clonic” and “tonic.” In the former, the muscles contract and relax alternately in very quick succession, producing an appearance of agitation. In the latter, the muscles contract in a steady and uniform manner, and remain contracted for a comparatively long time.
The Story in a Honey-Comb[12]
When one thinks of honey one instinctively closes the eyes and a mental picture of fruit trees laden with snowy bloom, of beautiful clover fields, of green forests in a setting quiet and peaceful, comes before the mind so realistic that the delicate perfume of the fragrant blossoms is almost perceptible and the memory of the musical hum of the little honeybee as she industriously flits from blossom to blossom, or wings her homeward way heavily laden with the delicious nectar, rests one’s jaded nerves. Into this picture fits closely the old bee master among his old-fashioned skeps, with the atmosphere of mystery that has so long been associated with the master and his bees that one is almost reluctant to think of the production of honey as a great commercial industry, employing great factories in the manufacture of beehives and other equipment necessary for the modern beekeeper that he may take full advantage of the wonderful and almost inconceivable industry of the honeybee in storing the golden nectar of the blossoms.
The development of the industry has been very slow; only during the past fifty years has real progress been made, although honey formed one of the principal foods of the ancients, which was secured by robbing the wild bees. During the early history of the United States, beekeeping was engaged in only as a farmer’s side line, a few bees being kept in any kind of a box sitting out in the backyard, boarding themselves and working for nothing. Even under such conditions amazing results were often obtained. Lovers of nature and the out-of-doors were attracted by the study of bee life, and early beekeepers were invariably bee lovers. The mysteries of the hive as revealed in the story of the family life of the bee--typical in many ways of our modern city life--is as fascinating as a fairy tale.
[Illustration: FERTILIZING A PUMPKIN FLOWER]
The average population of the modern beehive varies from forty to sixty thousand, with a well organized system of government. Intense loyalty to the queen mother is apparent in all their activities and arrangements. The close observer will discover a well-defined division of labor, different groups of bees performing certain operations. The housekeeping operations seem to be delegated to the young bees under sixteen days old, while the policemen are the older ones whose dispositions are not so mild and who would be more likely to detect a stealthy robber. It was this intensely interesting side of bee life that attracted the attention of a clergyman in failing health, forced to seek out-of-door occupation, in the early forties. He began to investigate bee life from a commercial standpoint, and about 1852 devised the movable hanging frame, which entirely revolutionized the bee business, making modern commercial beekeeping possible. Up to this time the box hive and straw skep were the only ones known, the combs being fastened to sticks, or the roof of the box, making it impossible to have any control over the activities of the hive. The new device or frame to which the bees fastened their combs in which brood was reared could be removed, one or all, at any time desired. This opened up undreamed-of possibilities in the bee business, which up to this time could hardly be called an industry.
[Illustration: AN ITALIAN ARMY OF BEES]
[Illustration: ITALIAN DRONE]
[Illustration: ITALIAN QUEEN]
[Illustration: ITALIAN WORKER
(All are enlarged to about three times their size.)]
[Illustration: A STRANGE HOME--BUT THE BEES ARE MAKING HONEY]
The man who has been most active in developing practical bee culture and who has contributed more to the growth of the industry in the United States than any other person, lives in Medina, Ohio. In 1865 this man was a successful manufacturer of jewelry in the village of Medina. One day his attention was attracted to a swarm of bees flying over. One of his clerks noticing his interest asked what he would give for the bees. He replied that he would give a dollar, not expecting that by any means the bees could be brought down. Shortly after, he was much astonished to have the workman bring the bees safely stored inside a box and demand his dollar, which he promptly received, while his employer had the bees and soon developed a lot of bee enthusiasm. The returns from that swarm of bees convinced him that there were possibilities in the bee business, and very soon he gave up the jewelry business to engage in the bee business and manufacture of beehives. In this new move he encountered the opposition of his family and friends, for the general impression was that any man who would spend money or time on bees was either lazy or a fool. Knowing that this particular man wasn’t lazy he was called a fool to risk so much on an uncertain enterprise. In his defense he remarked that he expected to live to see the time when honey would be sold in every corner grocery; but we doubt if he expected to see his prophecy fulfilled to the extent it has been, for not only is honey sold over every grocer’s counter, his own private brand is sold in all the principal markets of the United States.
[Illustration: A HAPPY HOME OF THE HONEY BEES]
[Illustration: “ALL HAIL, THE QUEEN”]
Shortly after securing his first swarm of bees he commenced the manufacture of beehives in the same room where he had his jewelry business, using a large windmill for power. Soon the business outgrew the small quarters and was moved to the present location of the plant. Hardly a year has passed that additions or new buildings have not been added, and the mammoth plant as it stands today covers sixteen acres of floor space, giving steady employment to several hundred people, and for many years modern agricultural appliances have gone from this factory to all parts of the world.
The old method of straining honey has long since been replaced by the centrifugal honey extractor, which simply empties the cells of honey, not injuring the combs. The combs are then replaced in the hive to be refilled by the bees, thus saving them the labor of rebuilding the costly structure, increasing the quantity of extracted honey which a single colony can produce, while comb honey is produced so perfect in appearance as to cause some to believe it to be manufactured by machinery; but comb honey, nature’s most exquisite product, comes in its dewy freshness untouched by the hand of man, from the beehive to the table, a food prepared in nature’s laboratory fit for the Gods.
As beekeeping developed as an industry, the close relationship to fruit growing and horticulture became apparent, as bees were discovered to be the greatest pollen carrying agents known. The government then began to spend more money on the development of the various branches of agriculture; a Department of Apiculture was established and through the work of this department beekeeping is recognized as one of the most profitable branches of agriculture.
[Illustration: THE RESULT OF A BEE’S STING]
The intense enthusiasm of this pioneer beekeeper was contagious and resulted in many taking up beekeeping. As no attention had been given to developing a market for honey and production increased, older beekeepers became alarmed and raised the cry that he was making too many beekeepers. Seeing the need for some means of increasing the demand for honey, a small honey business was started to dispose of the product of customers who had no market. Soon a definite educational campaign on the value of honey as a food was started, enlisting the co-operation of beekeepers wherever possible. Immediately the necessity for more care in selecting and marketing honey was apparent.
[Illustration: A LARGE SWARM OF ITALIANS ON A YOUNG LOCUST TREE]
[Illustration: ARRANGEMENT OF CELLS IN COMB]
[Illustration: HIGHLY MAGNIFIED EGG]
[Illustration: AN OLD-STYLE HIVE--What is inside?]
The introduction of Italian bees into the United States in the early sixties marked an epoch in beekeeping, as they soon demonstrated their superiority as honey gatherers, their gentleness and other traits proving them more adaptable to domestication and to modern methods of beekeeping. The marked superiority of some colonies over others attracted the attention of beekeepers to the possibility of race improvement by careful breeding, which gradually developed a new branch of beekeeping aside from honey production--that of queen rearing--as it was discovered that improvement of stock must come through the queen mother. The average production of honey per colony has been materially increased, due not alone to improved methods, but to improvement in stock by careful breeders; and there are many beekeepers engaged exclusively in this branch of the industry who enjoy international reputation as breeders of superior strains of queens, and many thousands are annually sent through the mails to all parts of the world. Live bees are shipped by express as easily as poultry or other live stock.
[Illustration: LOADING AN UP-TO-DATE CENTRIFUGAL EXTRACTOR]
[Illustration: IN ACTION--FOR A FEW MINUTES ONLY]
[Illustration: A MAN-SIZE HIVE OF ITALIAN BEES]
[Illustration: WE MUST BRUSH THE BEES OFF SO THAT WE CAN SEE THE COMB]
[Illustration: AFTER CELL CAPPINGS ARE CUT OFF--READY TO EXTRACT]
The honey industry is unique in this respect, that there is hardly a part of the United States where one cannot engage in it with profit. Locality has much to do with the flavor and quality of honey, owing to the different sources from which it is produced. Honey is simply blossom nectar gathered by the bees, distilled or evaporated in the beehive with the same distinctive flavor as the perfume of the blossoms from which it was gathered; consequently we have as many different flavors of honey as plants that bloom in sufficient profusion to produce honey. For this reason it is easy to recognize the distinct flavors of honey produced in different localities. In California orange honey we get the delicate aroma of the orange blossoms, and the water-white honey from the mountain sage has its characteristic flavor. Throughout the states east of the mountains and west of the Mississippi, are produced the well-known varieties of honey--alfalfa, sweet clover and other honeys from fall flowers. From the Middle West and Eastern states comes the matchless white clover honey, basswood and the dark aromatic buckwheat. The Southern states produce a multitude of different honeys, the sweet clover, tupelo, and the palmetto being the most common. The total annual production of honey in the United States as given by the best authorities is approximately 55,000,000 pounds. This, compared with other crop reports, may appear very small, but when considered from the standpoint of the enormous amount of bee labor represented, it is stupendous. Undoubtedly present reports will greatly exceed those given.
[Illustration: “FRESH AIR BEES”--No hive needed.]
[Illustration: QUEEN CELLS--Note size compared with worker cells.]
[Illustration: MAGNIFIED VIEW OF SECTION OF HONEYCOMB]
[Illustration: SOME OF THE BEST HONEY COMES FROM SUCH LOCALITIES]
[Illustration: A NICE, EVEN FRAME OF BEES]
[Illustration: A MODEL ARRANGEMENT FOR KEEPING BEES FOR PLEASURE]
[Illustration: REMOVING BEES FROM COMB]
[Illustration: SECTIONS OF HONEY AS TAKEN FROM THE SUPERS]
[Illustration: STAGES OF WORK IN BUILDING A SECTION OF HONEY]
* * * * *
Where do Figs Come From?
[Illustration: URUK GIRLS SPREADING FIGS]
[Illustration: TYPICAL SMYRNA FIG ORCHARD]
The fig tree, which is of the mulberry family, belonged originally in Asia Minor, but it has been naturalized in all the countries around the Mediterranean. It grows from fifteen to twenty, or even thirty, feet high.
In good climates it bears two crops in a season; one in the early summer, from the buds of the last year; the other, which is the chief harvest, in the autumn, from those on the spring growth.
Figs, particularly dried figs, form an important article of food in the countries of the Levant, and are exported in large quantities to America and Europe. The best come from Turkey.
What are “Fighting Fish”?
Fighting fish are a small fish and belong to the climbing perch family. They are natives of the southeast of Asia and are remarkable for their pugnacious propensities.
In Siam these fish are kept in glass globes, as we keep goldfish, for the purpose of fighting, and an extravagant amount of gambling takes place about the result of the fights.
When the fish is quiet its colors are dull, but when it is irritated it glows with metallic splendor.
How is the Exact Color of the Sky Determined?
An instrument called a “cyanometer,” meaning “measurer of blue,” is used for ascertaining the intensity of color in the sky.
It consists of a circular piece of metal or pasteboard, with a band divided by radii into fifty-one portions, each of which is painted with a shade of blue, beginning with the deepest, not distinguishable from black, and decreasing gradually to the lightest, not distinguishable from white. The observer holds this up between himself and the sky, turning it gradually round till he finds the tint of the instrument exactly corresponding to the tint of the sky.
What is a “Divining Rod”?
A divining rod is a wand or twig of hazel or willow used especially for discovering metallic deposits or water beneath the earth’s surface.
It is described in a book written in 1546 and it has also a modern interest, which is set forth by Prof. W. F. Barrett, F.R.S., the chief modern investigator. The use of the divining rod at the present day is almost wholly confined to water finding, and in the hands of certain persons it undoubtedly has produced results along this line that are remarkable, to say the least. The professional water-finder provides himself with a forked twig, of hazel, for instance, which twig, held in balanced equilibrium in his hands, moves with a sudden and often violent motion, giving to the onlooker the impression of life within the twig itself. This apparent vitality of the twig is the means whereby the water-finder is led to the place where he claims underground water to exist, though its presence at that particular spot was hitherto wholly unsuspected. While failure is sometimes the outcome of the water-finder’s attempts, success as often and, indeed, according to the testimony of Professor Barrett, more often crowns his efforts. Various explanations, scientific and other, of the phenomenon have been advanced. Professor Barrett ascribes it to “motor-automatism” on the part of the manipulator of the divining rod, that is, a reflex action excited by some stimulus upon his mind, which may be either a sub-conscious suggestion or an actual impression. He asserts that the function of the forked twig in the hands of the water-finder may be to act as an indicator of some material or other mental disturbance within him. While a hazel or willow twig seems to be preferred by the professional water-finders, twigs from the beech, holly or any other tree are employed; sometimes even a piece of wire or watch spring is used, with apparently as good results.
The Story of Electricity in the Home[13]
How wonderful to youth always has been the magical story of Aladdin and the wonderful lamp which, through its supernatural powers, he could gently stroke and thereby make genii of the unknown world his slaves.
In the rush of modern affairs there is that which is even more fascinating, even more wonderful, than the story of Aladdin and the magical power exerted through his lamp, but which is given but a passing thought because of the rapid changes through which we are passing.
Mythical as it may sound, yet nevertheless it is true, that man has harnessed for his use every snowflake that falls in the mountain tops and settles itself in the banks of perpetual ice and snow. How man has tapped the mountain fastnesses and converted the melting snows into a servant more powerful, more magical, more easily controlled, than Aladdin’s genii, should be known to everyone. This servant is electricity.
This silent, invisible servant is ever present, always ready at the touch of a button or the snap of a switch, without hesitation, without grumbling, to do silently, swiftly, without dirt, without discomfort, without asking for a day off or for higher wages, the work which is laid out for it.
The use of electricity is so common today that the average person does not stop to think of it as a magical power wielding a tremendous influence for betterment in every-day affairs.
Electricity has rapidly found its way into the home for domestic purposes, eliminating at its entrance a host of cares of the household.
So recently, as to seem almost yesterday, the genius of man’s brain coupled electricity with mechanical devices for the comfort and efficiency of the home.
Although a number of attempts have been made to build appliances for use in the home that would utilize electricity, the real beginning of the present almost universal use of electrical appliances seems to have been in the manufacture of the electric iron. One instance, at least, coupled with the manufacture of this household necessity, offers something of romanticism.
To a certain western state, a young electrical engineer betook himself, obtaining a position as superintendent of an electric power company and establishing his abode in a tent far up a canyon, more for the benefit of his wife’s health than for the thought of being near the power plant and his work. The melting snow which gathered in little rivulets made a roaring mountain stream which generated such an excess of power for the company, that the young electrical engineer began looking about for other means of utilizing it than for lighting the homes of the villages below the mouth of the canyon. He designed a crude electric iron, placed a number of them in use, and found they gave fairly good service and at the same time enabled the power company to sell additional current. Development of the device was rapid, so rapid, in fact, that the young engineer’s time was soon taken up with it and he resigned from his position with the power company to organize a small concern for the purpose of manufacturing electric irons which at first were sold to the consumers of the power company and later to a large nearby city.