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Sunday, April 29, 2007


The Goshawk is a average large bird of prey in the family Accipitridae which also includes many other diurnal raptors such as eagles, buzzards and harriers.

It is a extensive species throughout the moderate parts of the northern hemisphere. In North America it is named as the Northern Goshawk. It is mostly resident, but birds from colder regions of north Asia and Canada wander south for the winter.

Goshawk in flight this kind nests in trees, building a new nest each year. It hunts birds and mammals in woodland, relying on surprise as it flies from a perch or hedge-hops to cruel circle its prey unaware. Animals as large as hares and Pheasant are taken. Its call is a ferocious shriek. Many older goshawks refuse to attack hares, if it was previously acutely kicked by a hare which it tried to catch.

In Eurasia, the male is confusable with a female Sparrow hawk, but is larger, much bulkier and has comparatively longer wings. In spring, he has a stunning roller-coaster display, and this is the best time to see this enigmatic forest bird.

Monday, April 23, 2007

Black capped Chickadee

The Black-capped Chickadee, Parus atricapillus or Poecile atricapilla, is a small songbird, a passerine bird in the tit family Paridae.Adults have a black cap and bib by means of white sides to the face. Their underparts are white with rusty brown on the flanks; their back is grey. They have a short dark bill, short wings and a long tail.Their breeding habitat is mixed or deciduous woods in Canada, Alaska and the northern United States. They nest in a hole in a tree; the pair excavates the nest, using a natural cavity or sometimes an old woodpecker nest. They may interbreed with Carolina Chickadees or Mountain Chickadees where their ranges overlap.They are permanent residents, but sometimes move south inside their range in winter. On cold winter nights, these birds reduce their body temperature to conserve energy.
The call is the familiar chick-a-dee-dee-dee which gave this bird its name. Recent study of the call shows that the number of dees indicates the level of threat from nearby predators. This is the provincial bird of New Brunswick and the state bird of Maine and Massachusetts.Taxonomic note: Most authorities retain Poecile as a subgenus within a broader view of the genus Parus, but the American Ornithologists' Union treats Poecile as a distinct genus.

Wednesday, April 18, 2007

Jet Airways

Jet Airways is an airline based in India, helping familial and worldwide routes. The airline operates over 250 flights to 44 destinations athwart the country, with the majority of flights operated from Chhatrapati Shivaji International Airport, Mumbai. It presently controls about 40% of India's aviation market.

Jet Airways was recognized on 5 May 1993 with a fleet of 4 Boeing 737-300 aircraft, with 24 daily flights helping 12 destinations.
Its 44 destinations contain most of the big cities in India. Its international destinations contain Kathmandu, Colombo, Singapore, Kuala Lumpur and London's Heathrow Airport. Jet Airways was the first personal airline of India to fly to international destinations. It was later joined by Air Sahara. The daily Delhi-London service started in October of that year.
Jet Airways and Air Sahara are the only personal airlines which survived the Indian business downward spiral of the 1990s. On January 19, 2006 Jet Airways announced that it is buying Air Sahara for $500 million. This is the biggest takeover in India's aviation history and the resulting airline will be the countries biggest.
In 2006 Jet Airways will be raising its way network from Delhi via the north Indian city of Amritsar, as it is to begin Amritsar-London and/or Amritsar-Birmingham.

Monday, April 09, 2007

Electronic mixer

An elepctronic mixer is a device for addition two or more electronic signals. There are two basic types of mixer. Additive mixers add two signals together, and are used for such applications as audio mixing. Multiplying mixers multiply the signals together, and create an output containing both original signals, and new signals that have the sum and dissimilarity of the frequency of the original signals.Additive mixers are typically resistor networks, surrounded by impedance matching and amplification stages.Multiplying mixers have been done in a wide range of ways. The most popular are diode mixers, gilbert cell mixers, diode ring mixers and switching mixers.

Thursday, April 05, 2007

Recording studio

A recording studio is a ability for sound recording.Recording studios normally consist of at least two rooms: the studio itself, where the sound for the recording is created, and the control room, where the sound from the studio is recorded and manipulated. Recording studios are carefully designed so that they have good acoustics and that there is good isolation between the rooms.
Equipment found in a recording studio usually includes:Reference monitors, which are loudspeakers with a flat frequency response And may also include:
Digital Audio Workstation
Music workstation
Outboard Effects, such as compressors, reverbs, or equalizers

Sunday, April 01, 2007

Sea water

Sea water is water from a sea or ocean. On average, sea water in the world's oceans has a salinity of ~3.5%. This means that for each 1 liter (1000mL) of sea water there are 35 grams of salts (mostly, but not entirely, sodium chloride) dissolved in it. This can be expressed as 0.6M NaCl. Water with this level of osmolality is, of course, not potable.
Sea water is not consistently saline throughout the world. The planet's freshest sea water is in the Gulf of Finland, part of the Baltic Sea. The most saline open sea is the Red Sea, where high temperatures and restricted circulation result in high rates of surface evaporation and there is little fresh inflow from rivers. The salinity in isolated seas can be considerably greater.
The density of sea water is between 1020 and 1030 kg/m3. Due to chemical buffering, seawater pH is limited to the range 7.5 to 8.4.