Bees and Wasps Facts

Bees and wasps are two of the insects most beneficial to human beings. Normally bees produce honey and wax and serve as imperative pollinators. However, wasps attack and destroy numerously kinds of harmful insects including flies and caterpillars. Despite their value, several kinds of bees and wasps are unwelcoming in and around buildings because of their ability to sting and their tendency to defend their nests.

Wasps are rather like bees in appearance and honey bees are often blamed for the misdeeds of some of the social wasps such as hornets and yellow jackets. Wasps can sting repeatedly while the honey bee stings only once and leaves a stinger at the site of the sting.

Although, both wasps, and bees can be readily controlled with insecticides. Honey bees present more serious removal problems because of the larger size of their colonies and their tendency to nest within the walls of buildings.

Honey bee swarms

In the spring and early summer season, honey bee colonies mostly divide by swarming. Half or more of the worker bees leave their home to begin a new colony, usually with their old queen. They cluster temporarily on some object such as a tree branch for a period of a few hours to several days and then enter a new home such as a hollow tree or the wall of a building.

Swarms are not usually, a problem unless they land in an inconvenient spot or if they are molested. They are best left alone until they leave. Otherwise, contact the local police department or other agencies for the names of beekeepers willing to collect swarms. Thus, the little value of the bees themselves and other difficulties of collecting swarms have forced numerous beekeepers to charge for the service.

An alternative is to have the bees killed by a pest-control operator who will also charge for doing the job. If one person agrees to come for the bees, do not contact other people about doing the same job.

Honey bees in buildings

When a swarm enters a building, it begins to build combs of wax in which to rear young bees and store honey. Only at this time, when the bees first enter, can they be killed without having to open the wall and remove large quantities of dead bees, wax, and honey. If the colony has been in place for a month, it must be removed after it is killed, to prevent problems from the odors of decaying bees. However, the other insect pests penetrating the wall, and they released within the wall as combs melt or are demolished by other insects or mice.

Moreover, the insecticides are the safest and most suitable materials for killing bees in buildings. Do not use fumigants or other poisonous or flammable compounds. Carbaryl (Sevin), chlordane, lindane, and malathion are most suitable. All of them are toxic to humans and must he have used with care according to the directions on the container label.

Before applying an insecticide, you must know the location of the colony in the wall, especially in relation to the flight entrance. In many cases, the colony’s nest is far enough away from the entrance that insecticides applied at the entrance will not reach the bees.

The Honey bees’ nest should be sited by tapping on the wall at night and carefully listening for the area of loudest buzzing sounds. The bees keep the nest center at about 95° F., a temperature high enough to warm the wall beside it so that you may be able to feel as well as hear the nest location.

Either dust or spray formulations can be used within walls or other cavities but dusts generally disperse better within them. Apply the insecticide at night through the entrance hole if the colony is close to it in the wall. Or else, drill a hole in the wall above the colony and put on the dust or spray through it. After that, you need to seal the hole and all other holes through which bees might penetrate or leave the wall.

Therefore, if there is a very large colony may need additional treatment after about 10 to 12 days to kill emerging young bees. After all sound and flight activity has ceased, or at least within 2 weeks, open the wall and remove all dead bees, combs, and honey. These must be burned or buried because they are attractive to other bees and are toxic to both bees and people.

Do not expose the honey and wax where other bees can reach it, or you may damage valuable honey bee colonies nearby. The location within the wall will be attractive to other swarms unless it is sealed tightly to keep them out. An additional application of lindane or chlordane spray will also help to prevent the entry of another swarm.

There is an element of risk, or at least uncertainty, in dealing with bees, and you may prefer the job done either by a competent pest control operator or an experienced beekeeper. No matter who does the job, it may pose problems and considerable expense, at least in man¬ hours of labor. Systems of trapping the bees or removing them alive from the wall usually are not satisfactory and are not recommended.

When bees or wasps enter a room or an automobile, they rarely sting and usually fly to a window. Moreover, in a room they can be killed with an aerosol spray encompassing one of the insecticides. If a bee enters your vehicle, be calm, stop the car, and open the windows to let it out. A bee or wasp on the windshield or rear window may have to be “herded” out with a map or newspaper or crushed quickly with a handkerchief or wad of paper.

  

Other bees

Bumblebees are sporadically a problem when they nest in and around buildings or near walks. Naturally, they like to build a nest in old mattresses, car cushions, and other places such as mouse nests. The colonies may vary widely in disposition and size, with rarely more than a few hundred bees. They can be killed by insecticide dust or spray applied to the nest at night. Thus, you must use the same compounds suggested for use on honey bees.

The carpenter bees are big metallic colored bees alike in size and overall appearance to bumblebees. They are solitary bees that hardly sting, but often scare people when they boreholes and nest in redwood or other softwoods around a home. They can be killed by injecting insecticide dust, spray, or aerosol into their individual nest holes. Use the materials suggested for honey bees.

Wasps

Hornets, yellow jackets and paper wasps are social wasps that build gray-colored paper nests in the open or underground. Normally they frequently sting humans who approach the nests located under eaves, in the shrubbery, or in underground cavities close to buildings or walks. The solitary wasps, even the very large cicada-killer wasp that nests in the ground, rarely sting unless they are handled or get caught in your clothing. They have no instinct to protect their nests as the social species do.

Nests above ground should be sprayed at night with chlordane or lindane. Mix the spray from emulsifiable concentrate or wettable powder. Aerosol spray cans are not suitable for this purpose. Underground nests can be treated by spraying or dusting the same materials into the entrance at night. Also, cover the entrance with a shovelful of moist soil after treatment.

Precautions

The insecticides may be injurious to man and other animals if used improperly. Use them only when needed, and handle and store them with care. Bees and wasps are highly beneficial insects. Kill only those that may be a hazard to people around your home, farm, or place of business. Also Read - The Honey Bees are Beneficial

The white-breasted kingfisher (Halcyon smyrnensis)

The white-throated kingfisher (Halcyon smyrnensis) is a tree kingfisher and familiar and common resident, breeding bird of India, Bangladesh, Pakistan, Sri Lanka and Myanmar. In Marathi language it is called ‘Khandya, Dheesa and Dheewar.’ This bird is less dependent on water than other members of the Alcedinidae. Normally the breeding season of the White-breasted Kingfisher is March till July.

The white-throated kingfisher is also known as the white-breasted kingfisher. The adult kingfisher has red large bills and legs. The bird is bright blue back, wings and tail with white throat and breast. The flight of bird is very rapid and direct while the short rounded wings whirring, and large white patches are visible on the blue and black wings.

Courtship Display

Courtship starts from March; in that period the long beak birds are very vocal during and utter their cackling call ‘kili-kili’ repeatedly from a treetop for extended periods of time. Birds sit close to each other and repeatedly call.

Nest of White-breasted Kingfisher

Normally the bird nest is a horizontal tunnel, up to a meter long, which ends in a widened egg chamber and has a 7 cm wide entrance. It is excavated in a vertical cutting of earth on the bank of a river, stream, nullah or a roadside land cutting. The egg chamber is slightly inclined, perhaps to prevent the flow of water into the chamber.

Also, it makes disposal of waste material from within easy, as the chicks grow. In some nests the egg chamber is curved to the left or right. Lining of the egg chamber was not observed. Both the birds participate in nest excavation. One of the birds flew full tilt at the prospective spot and hit it with the tip of its bill. It immediately returned to the perching site while its partner repeated same process. This went on until a nest entrance had formed.

After the entrance was at least 5 cm long, both birds took turns to sit at its edge and excavate the tunnel further. Excavation ceased if the pair encountered problems such as rocky or hard soil, and a new site was selected. The pairs occupying the same area for 3 to 4 years. However only ringing will confirm the reuse of a nest or site by the same pair. However, the White-breasted Kingfisher is known to use various location situations for constructing its nest.

Food

The kingfisher quite often found near the water, where he likes to feeds on a wide range of prey that includes many things, like small reptiles, crabs, amphibians, small rodents and even birds.

Eggs & egg laying

A clutch may comprise of four to seven eggs, but usually contains 5 to 6. Eggs are white and spherical-oval in shape. The average size of 30 eggs is 29.4 x 26.2 mm. The eggs laid at regular intervals of 24 hrs or at least one gap of 48 hrs in the egg laying process.

Incubation & Hatching

There was negligible incubation up to the laying of last egg after which, it commenced at night. Both birds participate in incubation. The birds destroyed undigested food pellets that collected in the nest during incubation. During changing over of duties, the relieving bird uttered a call to the incubating bird, at which the latter left the nest.

After the eggs hatched, the attending bird removed the shells. In one of the nests the adults also removed an infertile egg. The incubation period is to be the extent of time from the laying of the last egg of a clutch to the hatching. The Incubation period is 21–22 days and fledging period 20–21 days.

Mortality

During one infertile egg the hatching period, black ants attacked the chicks and eggs. At another nest, weaver ants attacked a chick. Other common causes of chick mortality include accidental drowning, caving in of the nest chamber and, falling out of nest hole. Speeding vehicles occasionally knock down adult birds. In a study shows that the five nests that were observed, 22 eggs were laid, of which one egg was infertile and black ants attacked one chick and 3 eggs. The remaining 17 eggs hatched successfully.

White-throated kingfisher lifespan

The white-throated kingfisher hasn’t famous for longer life. One of oldest kingfisher is recorded to live 21 years of age. Hence the average lifespan is 4 to 5 years.

1. Belted Kingfisher (kingfishers)
2. Ruddy Kingfisher ! A Perfect Photogenic Bird
3. The Crested Kingfisher (Megaceryle lugubris)

The Legal and Ethical Issues in Salvaging the Titanic

The Titanic has engaged the huge attention of a rapt world audience for more than a century now. As the most famous and historic of all shipwrecks, it is enshrouded in a cloak of mystery and debate. The traumatic effect that the loss of the massive ship had on the public at the time of the disaster has not abated, making the Titanic seem almost eternal. Although many plans to salvage the ship and its cargo were developed over the hundred years that the Titanic lay undiscovered 4 km below the ocean surface.

RMS Titanic has not discovered until 1985 that salvage became feasible, when Robert Ballard of the Oceanographic Institute in Woods Hole, Massachusetts, discovered the ship’s exact location as part of a joint American-French research team. Hence, the serious issues were directly raised over the controversial question of salvage rights. The main issue is that the shipwreck lay in international waters. Because, there is no legal protection in international waters for Titanic Wreck of historical or archaeological significance.

In this type of case, shipwrecks are subject to salvage law, which stipulates that the first salvor on the site has exclusive rights to the site. Thus, other salvors are prevented from accessing the site if expeditions are being planned and conducted to recover artifacts from the wreck. Robert Ballard could not legally claim salvage rights to the Titanic Wreck since he uncovered it while working on a government research project.

The French Oceanography Institute, which was the French component of the joint American-French research team and had received little acknowledgment for its contribution in the discovery of the wreck, had no such constraints, however. It was soon involved in the formation of the commercial salvage company that was to become RMS Titanic, Inc.

More than 1,500 people including rich and poor, representing over 20 countries perished in the disaster. The ship had broken into two separate parts, with the stern section lying about 804.5 m beyond the bow portion. A huge field of debris covers the ocean floor between the two pieces. RMS Titanic, Inc., stated early on that they only intended to record the site; recover, conserve, preserve, and tour just those artifacts recovered from the debris field. It keeps the collection together rather than sell it to individual buyers around the world.

The culmination of the project would be a Titanic Memorial Museum in which all the artifacts recovered would be kept. Although it should be noted, that RMS Titanic, made available for sale to the general public authenticated coal from the sea bed. The reaction was very strong and instant. The individuals and organizations from around the world fervently opposed the idea of salvage work being done on the Titanic. They were claiming that the wreck was a “gravesite” and should be left undisturbed as a memorial to those who died.

These organizations as the Titanic Historical Society (the largest and most senior of the Titanic enthusiast bodies) of the United States and the Ulster Titanic Society of Northern Ireland “where the ship was built” set themselves against the salvage operation. Robert Ballard, who firmly believes in the sanctity of the site, worked to get a United States federal law passed making it illegal to buy or sell artifacts from the site in the U.S. Other individuals and institutions allied themselves with the salvage, if it was done well and in good taste.

They were really concerned that artifacts would be sold and dispersed if a company other than RMS Titanic, Inc., were the salvors dealing with the wreck. The unscrupulous salvors interested only in pure commercial profit would not employ the same sort of painstaking recording, recovery, and conservation methods that RMS Titanic, used to save materials recovered during the four research and unearthing expeditions conducted between 1987 and 1996.

Stimulatingly, although the Ulster Titanic Society opposes the salvage of the wreck, the society believes that if salvage work continues, RMS Titanic, Inc., is the best salvor to do the job. In the face of serious international and, hostile criticism from the public, maritime archaeologists, and museum professionals, the National Maritime Museum of Greenwich joined RMS Titanic, in a partnership to present the first exhibition of artifacts recovered from the wreck.

In 1994–95, around 150 of the several thousand artifacts recovered from the debris field were displayed in an exhibition titled “Wreck of the Titanic.” The exhibition was billed as the “largest-ever public display of Titanic artifacts” and was a huge success in terms of audience attendance and media coverage.

More than 500,000 visitors saw the show. The exhibit brought the museum into direct conflict with the ICMM (International Congress of Maritime Museums), however, of which it is a member. The museum and ICMM disagreed about salvors and salvage law.

The ICMM was concerned that the exhibition included artifacts recovered from the site since 1990, and “relics raised illegally or in inappropriate circumstances after 1990. They are considered out of bounds for ICMM-member museums.”1 Richard Ormond of the National Maritime Museum claimed that “the objectives of the exhibition were to demonstrate the technical achievement of finding and exploring the site.

That shows conservation techniques and the extraordinary survival of objects on the sea bed, and to examine the controversy in detail. The museum stressed that none of the artifacts on display came from the hull of the ship. Which was the true “gravesite” of the victims? Michael McCaughan were a Titanic expert from the Ulster Folk and Transport Museum in Northern Ireland visited the exhibition and felt that the “150 artifacts were displayed sensitively in a variety of contexts.

Fundamentally this was not an exhibit about the past, but about the present and its appropriation of the past. The exhibit was not a requiem for the dead, nor did it address the metaphorical meaning of Titanic. Rather, it was enshrinement of the triumphs of deep-sea exploration and the stimulating wonders of conservation laboratories. Regardless of the controversy and arguments over the salvage work conducted by RMS Titanic, Inc., there is no doubt whatsoever that the company’s work is legal.

RMS Titanic, Inc., was granted salvor-in-possession rights to the Titanic Wreck by a U.S. federal court in 1994. Despite a challenge, these rights were reconfirmed in 1996, giving the company exclusive rights to own artifacts recovered from the wreck. The 1996 judgment took into consideration the site recordings, artifact conservation, and commitment of RMS Titanic, Inc., to keep the artifact collection together for public display. Rare Titanic Pictures / Legal and Ethical Issues in Salvaging Titanic Wreck

Facts about Amazon River Dolphins

The Amazon is classified as a “whitewater” river, i.e., it is turbid, yellowish-brown, and very limited in transparency because of the large load of suspended sediment. The tributaries, channels, and lakes are classified as “blackwater,” i.e., they are more transparent due to a lack of suspended sediment but are of a dark color due to high concentrations of dissolved fumic and fulvic acids.

The abundance of the Amazon river dolphin (Inia geoffrensis, also known as the boto, bufeo or pink river dolphin), and the tucuxi (Sotalia fluviatilis) along ca. about an area of 120 km of the Amazon River bordering Colombia, Brazil, and Peru. Dolphins in riverine environments include some of the most endangered of the world’s cetaceans. The principal threats are incidental mortality in fisheries, habitat loss and degradation, directed the killing, death in construction, and collision with boats. The current population is decreasing day by day.  

The baiji (Lipotes vexillifer) is considered the most endangered cetacean. It is likely that this species will become extinct within the next decade. The situation is no more promising for many of the other dolphins of the superfamily Platanistoidea. The bhulan (Platanista minor) and the baiji are listed as “endangered” and the susu (P gangetica) and the Amazon river dolphin (also known in Spanish as bufeo colorado, and in the Portuguese language it is called as boto) (Inia geoffrensis, hereafter referred to as Inia) as vulnerable.

The status of the tucuxi (also known in Spanish as bufeo negro) (Sotalia fluviatilis, hereafter referred to as Sotalia), a delphinid, is unknown. The biology and conservation of platanistoids hoping in improvement of techniques to estimate the population sizes of these dolphins and to determine trends in their abundance. The fresh-water cetacean populations are a challenge.

It is not easy to photograph species that spend most of their lives in dark and turbid waters, and when at the surface, tend to be inconspicuous, shy, and unpredictable. Moreover, given that all cetacean populations that inhabit freshwater ecosystems live in the watersheds of developing countries, the funding and technology available to conduct research are limited.

The Inia and Sotalia are distributed in the Amazon and Orinoco basins, the largest river system in the world. Most of what is known about these dolphins in the wild are from work conducted since the early 1980s near Manaus, Brazil. Pigmentation patterns on the dorsal ridge of Inia are the most prevalent mark type and are often used as one of the principal marks for photo-identification of the species.

Pigmentation patterns are likely the result of discoloration of the skin, parasites, or abrasions caused by rubbing against objects or by injuries from their conspecifics. Pigmentation patterns of many species remain unchanged across multiple years such as in bottlenose whales.

Thus, pigmentation patterns on the flanks are considered supplementary. Despite this, they were one of the main features used to describe body coloration. Pigmentation patterns were first described for Inia in the same Amazon location in Trujillo but it was not known whether these would be reliable marks across multiple years.

The supplementary mark types (scratches, scrapes; black marks; white marks; pigmentation patterns on the flank, neck, and head) are, overall, not reliable over the long term but are useful for identifying individuals. The Scrapes and scratches can be formed from tooth rakes of conspecifics or can be single or parallel lines that may be produced by inanimate objects such as flooded vegetation.

These marks cannot be used to identify Inia dolphins for a period longer than one week and one month, respectively. Therefore, the scratches are highly prevalent in Inia dolphins; however, as has also been observed in other species, they have high gain and loss rates and, thus, limited persistence. For instance, scratches are like the linear marks and tooth rakes described in long-finned pilot whales (Globicephala melas), which are also not persistent in the population.  

Further, the Znia is the most geographically prevalent of the platanistoid dolphins, being found in several parts of Bolivia, Colombia, Colombia, Ecuador, Peru, Guyana, and Venezuela. Also, the Sotalia is normally found in the Amazon-Orinoco River system but also inhabits the sea and can be found in the Caribbean off the coast of Panama and along South America’s north and northeastern shores from Colombia to southern Brazil.

The observations of the abundance of Znia or Sotalia, and most were incidental to other activities and limited to a few sightings in small areas. Only a few of these previous works produced quantitative estimates of density or abundance.

The water level of the Amazon River reaches a maximum in May, coinciding with the peaks of the rainy seasons in the Peruvian and Ecuadorean headwaters and reaches a minimum during July-August. The Amazon River ranged between approximately 0.5 and 2 km in width as maximum widths of the tributaries ranged between 60 and 200 m.

The Amazon river dolphin or boto (Inia geoffrensis) is found in the Amazon and Orinoco river basins. It inhabits slow and fast-flowing rivers, side channels, lakes, and flooded forests and grasslands. The principal limits to its distribution seem to be impassable rapids and cold waters in small tributaries at the headwaters of the Amazon basin in the Andes. 

Although the Amazon river dolphin is the most widespread freshwater dolphin in the world, its distribution is limited compared to that of most marine odontocetes and it is therefore very likely to become a threatened species. For the management of Amazon river dolphins in the wild, information is needed about the population size, age composition and sex ratio, seasonal distribution, diet, energy requirements relative to seasonal prey distribution and density, and about competition with other animals and with fisheries.

This information could facilitate prey management to allow for a certain number of Amazon river dolphins in their distribution area. The Amazon river dolphin is a generalist feeder, whose diet is known to include over 50 fish species.

Fish types are taken by Amazon river dolphins (mainly sciaenids, cichlids and characins in order of importance) and their proportions in the diet. However, very little is known about the energetic requirements of individual odontocetes of various ages and, sizes. As it is, at present, impossible to measure their energetic requirements in the wild. The Amazon river dolphin is usually seen in one or two but may also appear in pods that seldom contain more than eight individuals.

Further to the image-identification, the natural marks have been used in other species too, to assess an individual’s age. For instance, Risso’s dolphin (Grampus griseus) adults become lighter with the age due to loss of pigment. Thus, individuals with a moderate to a very high level of scarring are considered adults Marks of Inia could also be used to assess the age and sex of individuals.

The color, especially the pinkness of some adult males, could potentially be a proxy for Inia’s maturity. This could be investigated marks on individuals that are already sexed, aged, and artificially marked. However, these features would not appear to be useful for Inia dolphins in the Orinoco, where all individuals in our study were grey and without pink patches.

Read More - Greatest Amazon River is Home to Several Extremes / The Snapping Turtles (Chelydra serpentina) / Blue-ringed Octopus – World’s Most Venomous Marine Animals / The Eastern Bluebird (Sialia sialis)

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The Complex Behavior of Songbird

For Songbirds singing is a complex behavior that must be learned. It has stimulated rapidly advancing researching various disciplines, notably neurobiology and behavioral ecology.  But do not understand in detail how sound is produced by the birds’ vocal organ, the syrinx. The main reason for this is that the syrinx is located at the base of the trachea (windpipe).

To making it relatively inaccessible to direct physiological studies the powerful, direct methods that have been effectively used to study sound production in the human voice box cannot easily is adapted to investigate the avian syrinx.

So, the ideas about sound generation in birds are based on indirect approaches, such as analysis of vocalizations and of the morphology of the syrinx, and theoretical models. The combination of indirect and direct approaches can support to overcome these difficulties. The careful analysis of zebra finch (Taeniopygia guttata) song revealed linear and nonlinear phenomena.

That is including switches from periodic to a periodic or chaotic oscillations and period doubling. Also, transitions from linear to nonlinear dynamics occurred rapidly (within 1 ms), without silent intervals between the two states. The transitions arise from intrinsic properties of the vibrating components of the syrinx rather than from complex neural control.

So far, it was presumed that the central nervous system directly controls the often-intricate temporal pattern of song. In birds, singing contains the expiratory muscles that line the body wall and generate pulses of increased air pressure by compressing the posterior air sacs. These pulses define the coarse temporal pattern, which can be modified by activity of the syringa muscles.

These muscles are well attached to the syrinx. Because they turn sound production on and off by opening and closing the airways through the syrinx. Also, the respiratory and syringeal muscles also control the acoustic structure of song such as sound frequency and amplitude, and frequency modulation. An intricate network of brain areas controls the respiratory and syringeal muscles during song production.

But we now learn that intrinsic mechanical properties of the syrinx can contribute to temporal and acoustic song patterns. These patterns are independent of complex central control, needing a minimal contribution (in the form of slowly changing pressure from the respiratory and vocal muscles.

This is discovered by studying the vibratory behavior of the zebra finch syrinx in an in vitro preparation. Moreover, the sounds induced by drawing air through the excised syrinx in some species of bird. The acoustic versatility of the song is an indicator of male reproductive fitness. So, this may be important for the choice of mate and encounters between members of the same sex.

Also, If the peripherally generated acoustic structure requires a less precise motor control than complex sound modulation controlled by the action of muscles. It is also weighted differently by a listener who is trying to work out the ‘quality’ of the singer? The findings are also of practical importance for researchers trying to quantify the quality of birdsong.

The assessment of songbird complexity is firmly linked to knowledge of sound-producing mechanisms, and now that peripheral contributions to song structure must be added. The task has become even more challenging. At last, they remain the question of whether nonlinear dynamics might also be mixed up in singing by other species of bird.

The nonlinear effects contributing to the temporal and acoustic pattern in bird vocalizations will be described. Also, nonlinearity is well known in the physiology of the human vocal organ. But to those who suffer from roughness of voice, it must be of little comfort to know that nonlinearity can also be a mechanism to enhance vocal properties.

The well-known debate between Niels Bohr and Albert Einstein on the nature of quantum reality, a well asked question central to their debate the nature of quantum interference has resurfaced. Dürr, Nonn, and Rempe, have used an atom interferometer to show that Schrödinger’s concept of ‘entanglement’ between the states of particles is the key to wave-particle duality, and to understand much that is weird about quantum mechanics.

This is quite different from the usual textbook explanation of duality in terms of unavoidable measurement disturbances. It confirms that entanglement is essential in establishing quantum weirdness and in the emergence of classical behavior at larger scales. Quantum entities can act like particles or waves, depending on how they are observed.

They can be diffracted and produce interference patterns (wave behavior) when they can take different paths from some source to a detector in the usual example. The electrons or photons go through two slits and form an interference pattern on the screen behind. On the other hand, with an appropriate detector put along one of the paths, the quantum entities can be detected at a specific place and time, as if they are point-like particles.

But any attempt to determine which path is taken by a quantum object destroys the interference pattern. The central mystery of quantum physics, and Bohr called this vague principle ‘complementarily’, and explained it in terms of the uncertainty principle, put forward by Werner Heisenberg, his postbox at the time.

To persuade Einstein that wave-particle duality is a vital part of quantum mechanics. Bohr constructed models of quantum measurements that showed the futility of trying to determine which path was taken by a quantum object in an interference experiment. As soon as enough information is acquired for this determination, the quantum interferences must vanish.

Because any act of observing will impart uncontrollable momentum kicks to the quantum object. This is quantified by Heisenberg’s uncertainty principle, which relates uncertainty in positional information to uncertainty in momentum when the position of an entity is con-strained, the momentum must be randomized to a certain degree.

This explanation in terms of the uncertainty principle has become a talisman foursome, but it has left others uneasy, as it views the measurement and momentum kicks as ‘locally realistic’ in other words, as idealized classical measurements, rather than quantum mechanical phenomena them-selves.

This is a treacherous position, and it has led to a debate in this journal between a group centered on the Max-Planck Institute for Quantum Optics and one in Auckland, on whether momentum kicks are necessary to explain the two-slit experiment. Apparently, momentum is involved, because a diffraction pattern is a map of the momentum distribution in the experiment.

But how is it involved? Is it everything, as Bohr would have claimed? This is the question addressed by Dürr. Who has studied the interference fringes produced when a beam of cold atoms is diffracted by standing waves of light? Their interferometer displays fringes of high contrast but when they encode within the atoms information as to which path is taken, the fringes disappear entirely. The internal labeling of paths does not even need to be read out to destroy the interferences: all you need is the option of being able to read it out.

Read More – The Snapping Turtles (Chelydra serpentina) / Blue-ringed Octopus – World’s Most Venomous Marine Animals / The Eastern Bluebird (Sialia sialis)

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The Eastern Bluebird (Sialia sialis)

In the right terms, "Sialia" is the Latinized, neuter plural version of the Greek word sialis, a noun meaning a "kind of bird." Since the Eastern Bluebird (Sialia sialis) was the first bluebird classified by Carolus Linnaeus in (1707-1778). He gave it the species name sialis, though he placed it in the genus Motacilia which is now reserved for the wagtails. It was William Swainson (1789-1855), who, in 1827, decided that the bluebirds needed a genus of their own within the thrush family (Turdidae).

He selected the generic name "Sialia" which he simply adapted from the species name Sialia which Linnaeus had used. Therefore, the scientific name for the Eastern Bluebird is Sialia sialis. Similarly, the Western Bluebird and Mountain Bluebird, the two other species within the genus, were named Stellemexieana and Sialia currucoides respectively.

Their species names are descriptive of their locations. All three-bluebird species are native only 10 the North Ameri can continent, although each inhabits different regions generally separated by the Rocky Mountains and by altitudinal preferences. While the adult birds all show differing plumages, the young of all three species look remarkably alike, prominently displaying spotted breasts and large white eye-rings.

This similarity in plumage was the principal reason the Society chose the juvenal bluebird for its logo. Since bluebirds almost always choose to raise their young in small enclosed cavities, a young bluebird sitting near a nesting box seemed to -symbolize our mission. The hope of any species resides in its young. Because of bluebird nesting preferences, the survival of their young may depend on the nesting box, especially since natural cavities, for a variety of reasons, are disappearing rapidly.

The theme of bluebird young nurtured in man-made structures will be a recurring one in our art and literature. We hope that this theme will remind all about the plight of the bluebird and will stimulate action which will allow this beautiful creature to prosper. many years bluebirds have been in trouble trying, usually in vain, to maintain their population.

Various factors have been involved in the bluebird population decline, but the principal causes are believed to be a shortage of the natural cavities they require for nesting plus severe co petition from the alien House Sparrows and European Starlings for most available cavities. Consequently, efforts to help the bluebird have been confined largely to supplying them with nesting boxes mounted in suitable habitat, and in trying to protect the bird s during the nesting season from their natural and imported enemies.

Public concern over the plight of the bluebird has increased enormously in recent years. Hundreds of people have become actively involved in helping these beautiful birds and many thousands of bluebird nesting boxes have been erected throughout the United States and Canada. A brief review of some of the important milestones in the bluebird conservation effort should, therefore, be of interest.

Before the advent of the white man in North America, American Indians were said to have erected hollowed-out gourds in their Villages to attract Purple Martin s. The purpose was evidently to help control objectionable flying insects since martins consume large numbers of such insects. Hollowed-out gourds are still used to attract martins, particularly in some parts of the South.

Since bluebirds frequently use these gourds for nesting, it is assumed that they also used some of the gourds supplied by the Indians before any Europeans settled in America. This then probably represents the beginning of the custom of attracting bluebirds by supplying artificial nesting sites.

In early Colonial times, the Eastern Bluebird is known n to have been much admired and was often called the " blue robin " since it reminded the colonists of their beloved European Robin. The bluebird gradually became a symbol of love, hope, and happiness.

This symbolism persists today. Through the years the bluebird has been mentioned more frequently than any other bird in American poetry and in the lyric s of our popular songs. It seems probable that some of the early colonists attracted bluebird’s close to their homes with nesting boxes of some sort, although document at ion of this is obscure.

The bluebirds were very active, flying about, eating weed seeds, cat chin g Insects, walking about on the ground and gravel road and even perching on top of the air vent of the buried gas tank. They were only a short distance from the truck, often only a few feet from it. It was a most enjoyable lunch hour for both of us.

A nesting box mounted six feet or more above the ground on a smooth metal pole, such as a piece of galvanized water pipe, and located 75 feet or more from any wooded area is unlikely to be of any interest to flying squirrels. These beautiful little animals feel at home only in or very close to woodlands. If the mounting pole is kept covered with soft automobile grease during the nesting season the box will be still better protected from squirrels and most other climbing predators.

Read More – The Snapping Turtles (Chelydra serpentina) / Blue-ringed Octopus – World’s Most Venomous Marine Animals

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