reach the moon''giant''maximum visibility of the rare event will happen at midnight tonight. How not happened in 18 years, will reach the minimum distance from the earth, we could see an event that only happens every twenty years: the so-called "giant moon."
The satellite will reach in fact the minimum distance from the earth (the highlight is scheduled at midnight, when it comes to about 353,400 km) and appear huge human eye, reaching 14% more of his greatness. An event made even more spectacular by the fact that full moon is scheduled for tonight.
The phenomenon of the lunar perigee:
Renamed the simple words "super moon," the phenomenon is called perigee lunare.E in fact simply means that the minimum distance will be affected by ground An event not rare, considering that not happened since 1993, ie 18 years.
From the astronomical point of view, is explained by the fact that the moon revolves around the Earth along an elliptical orbit, and every 19 years moving around the orbit due to the gravitational perturbations caused by other, perhaps, like the sun. ;
Thus the points at which the moon reaches the minimum distance (perigee) and maximum (apogee) swinging around a moving point average.
Of all the life forms on this planet, the butterflies are in my view of living beings who have incredible , through a process of different stages of growth and ; mutation irreversibly turn into a beautiful nature that is unique in the animal world, nature could not create something more amazing ...
There are four main stages of a life cycle of a butterfly: egg, larva, pupa and adult.
Egg: Just before the moment of hatching the egg darkens, and the young caterpillars can be seen moving inside. Before carving out a kind of circular cover nell'involucro hard egg, then push the egg outside the body twitching. This is one of the most vulnerable stages.
Caterpillar: The caterpillar chooses a suitable rod and a pad of silk weaving in the tail attacks. So fixed a belt of the same material that is passed around the center of the body and remains attached to the support offered by the stem. The cuticle of the caterpillar crack along the back and the pupa begins to emerge. At this point the pupa takes its final shape.
Pupa
Pupa: Shortly before the flicker, the color of the adult butterfly becomes faintly visible. The shell of the pupa cracks and the butterfly begins to come out hard. When it is fully out, the butterfly from the end gives the abdomen a liquid called meconium, which contains the waste products accumulated during the pupal stage.
After hatching, the butterfly with its wings folded and left dangling, and expands pumping haemolymph into the wing ribs. It is important that the insect's wings expand enough quickly before hardening, otherwise, would remain permanently deformed.
Adult: The moth has fully developed a way of life completely different from that of the caterpillar: while it feeds on leaves to grow, the butterfly spent the time to suck the nectar of flowers and to mate.
Vanessa (peacock's eye)
Generally the life of a butterfly is quite short, ranging from a few days to a week or two and only in some cases, can amount to months of life. For example, Vanessa I, or Eye of peacock (Inachis I), spends the winter in hibernation before placing groups of more than 500 eggs at a time to beginning spring, so it can go through two seasons.
The butterfly is the largest existing or butterfly Ornithoptera alexandrae Queen Alexandra that can reach a wingspan of 31cm, a body length of 8 cm and weighing up to 12 grams.
The Queen Alexandra butterfly (Ornithoptera alexandrae) is the largest butterfly in the world.
The name of this species was given by Lionel Walter Rothschild in 1907, in honor of Queen
Ornithoptera alexandrae (Male
Alexandra of Denmark's first European to discover the species was in Albert Stewart Meek 1906, a collector in the service of Lord Walter Rothschild to collect natural history specimens from Papua New Guinea
The females of the Queen Alexandra butterfly is bigger than the males with wings markedly large and rounded. Females can reach a wingspan of 31cm , a butterfly to a huge extent. Males are smaller than the females with wings drawings brown iridescent blue and green and a bright yellow abdomen.
Female
The Queen Alexandra butterfly females lay about 27 eggs during their entire life , this estimate was made by Ray Straatman dissecting some adult females. The newborn larvae eat the shell of the egg before they feed on the leaves. The time to develop from egg to chrysalis is about six weeks, while the pupa stage lasts a month or more. The adults emerge from pupa in the early morning when the humidity is still high, given the enormous wings may dry until they have fully extended if the humidity vanish. Adults live for three months or more and have few predators, other large spiders of the genus Nephila and some small birds.
Monarch Butterfly
Adults are good flyers most active early in the morning, the courtship is brief but spectacular ; males hovering over a potential mate, with a sprinkling pheromone that induces mating. The receptive female will allow the male rest and mate, while those not receptive the male will fly away or discourage in some way. Males are highly territorial and will drive away potential rivals, sometimes chasing small birds as well as troidini other species. The flight is usually high in foliage of the forest, but both men and women descend a few meters from the ground to feed or lay blue eggs.
The Queen Alexandra butterfly is considered at risk by the IUCN, being restricted approximately 100 square kilometers of rain forest near Popondetta in Oro Province Papua New Guinea. The greatest threat to this species is the destruction habitat to make way for plantations palm oil. Because of this, this butterfly has a extremely high value on the black market. The species is also highly valued by collectors, with samples also sold for illegal thousands of dollars.
Kingdom of Butterflies
The Nature Museum sweep "in the Kingdom of Butterflies" City of Vicenza, contains a collection of 10,000 butterflies meticulously preserved (Butterfly, Lepidoptera), representing all of Italy diurnal species known until now, strictly classified by species, subspecies, sex and shape.
The Butterfly House Butterfly Arc is the brainchild of the entomologist naturalist, Enzo Moretto already in the first half of the seventies. This is expressed first in a series of experiences and temporary exhibitions.
Then, thanks to the fundamental naturalist Gabirella Tamino, was born the first Italian Butterfly House was inaugurated in 1988 in Montegrotto in the province of Padua. Today, The Butterfly House of Montegrotto is one of the most important living museum and is the center of efforts to reach world and the place of planning and design of the Butterfly House Italian more important as the Milano Marittima, Emilia Romagna, center of the great museums of Bordano in Friuli Venezia Giulia and the experience of Monsteserra in Sicily.
Moths, like butterflies, belong to the order Lepidoptera, but
habits usually at night.
antennae of moths, unlike those of butterflies, may have different forms: pinnate or bipinnate, that is like a comb branched, thin, rod-shaped, etc.., While the wings, at rest, are closed-roof or open.
differences that distinguish them are numerore and dedicate to these wonderful creatures of nature a separate post in the future.
