Tuesday, June 14, 2011

Sea Anemones and Sea Cucumbers

While most Sea Anemones and Sea Cucumbers are relatively harmless to humans a few do contain strong toxic substances producing quite severe effects. One of these Sea Anemones and Sea Cucumbers is the stinging anemone (Actinodendron plumosum), a blue-grey to light brown animal which can look somewhat like a fir tree.Found under boulders and coral, red bristle worms have numerous fine needle-like bristles which break off when they have become embedded in the skin, causing severe irritation.Although Sea Anemones and Sea Cucumbers are one of the safest animals on the reef to touch, the numerous white Cuvierian tubules, which some eject when irritated, contain a toxin which can cause blindness if it comes into contact with the eyes. This toxin may also be present on the skin so you should wash your hands after handling these creatures.

Sea Anemones and Sea Cucumbers

Sea Anemones and Sea Cucumbers Although known widely as stinging or fire corals, these organisms are, in fact, colonial animals (Millepora sp) more closely related to hydroids.Sea Anemones and Sea Cucumbers having a hard coral-like skeleton, they vary in form from large upright sheets and blades to branching, finger-like 'antlers' with a yellow-green to brown colour.Sea Anemones and Sea Cucumbers Effects and treatment are similar to hydroid stings

The Psychology of Traveling

The 21^st century is ready to be called the CENTURY OF TRAVEL. The form of travel in the past centuries was different but always present in one form or another. First it was to discover other lands to settle, than it was wars to capture other lands that seemed greener and fertile. The new discoveries speeded up the act of traveling and the desire of learning about new cultures, customs, and cuisine become so strong that traveling became a second nature for the citizens of the world. Regardless of the effects of the climate change, lack of security in certain destinations, the desire to travel grew. The world and its citizens wanted to come closer and know each other better.

This desire to travel exceeded its boundaries in itself and tourism became a force that can and could shape the future economic growth of the nations. The economic value of tourism grew with the increase of travel and started molding the social, economic, diplomatic relations and behavior of the nations. Distances came closer with fast trains, good roads, luxury cruises, and comfortable, wide-bodied aircraft. Travel/Tourism industry became the fastest-growing economic sector in the world. The new excitement and craze was Traveling to unexplored regions, living unexpected experiences. Tourism became the new ism of this century, with dedicated followers of this travel cult.

When traveling your dimensions change, you jump into a totally different time zone. The hurries and worries can be left behind. There is hope in traveling of reaching to a destination that might change your life and bring unexpected happiness and pleasures making the life endurable. It is as if escaping from ones own prison. Freedom, mystery, challenge, fright, fulfillment are some of the defining words of travel that has given life to tourism.

21^st century is definitely the century of travel bringing prosperity to nations through the power of tourism that is and will shape further the future of nations that have the capacity to serve the demands of the traveling humans in all levels and situations.

courtesy by http://ftnnews.com/news-home/mice-corner/12628-the-psychology-of-traveling.html

Thursday, May 19, 2011

Space for Nature

In September 2009 Secretary of State for Environment, Food and Rural Affairs Rt. Hon Hilary Benn MP announced a review of England’s wildlife sites and ecological network. The ‘Space for Nature’ review panel, chaired by Professor Sir John Lawton, is exploring whether England’s collection of wildlife areas represents a coherent and robust ecological network that will be capable of responding to the challenges of climate change and other pressures. The review panel is currently gathering evidence and is due to report by June 2010.

Deep Sea Fishing - A 10 Point Article On The Exciting Pastime

There's nothing like deep sea nature fishing! First, there's the solitude and peace you find when you're out in the ocean with your best buds. Then there's the mental game, the strategy of finding, baiting, and winning the prize. It's a challenge where success can truly change the life of the fisherman. And failure is no failure at all - you've still had hours of peaceful, glorious communion with the mother of deep sea nature, the mysterious ocean.

Space for Nature

Wildlife Nature

nature under the water

The Nature of Space and Time: An Evening of Speculation

What is space? What is time? And how do we fit into it all? These are questions not only for physicists and mathematicians, but also for philosophers and theologians. The John Templeton Foundation has gathered together just such an eclectic mix of people for a public discussion entitled The Nature of Space and Time: An Evening of speculation to be held at Emmanuel College in Cambridge on the 7th of September 2006. The discussion panel for the evening comprises some very eminent names indeed: mathematician and Fields medallist Professor Alain Connes, Rev. Dr. Michael Heller from the Vatican Observatory, mathematicians Professor Shahn Majid and Sir Roger Penrose and theologian and physicist Rev. Dr. John Polkinghorne.

A black hole at the centre of a galaxy. To understand what happens at the centre of black holes one needs a theory of quantum gravity. Image taken by the Hubble Space Telescope, courtesy NASA, The Association of Universities for Research in Astronomy and The Space Telescope Science Institute.

While we all have an intuitive understanding of space and time that is sufficient to get us through everyday life, when it comes to deeper questions about them one might expect to turn to physics. The two current fundamental theories of physics are general relativity and quantum mechanics. Whilst general relativity is extremely accurate for describing the universe on the macroscopic level and quantum mechanics similarly on the sub-atomic level, the two theories have never been united. Complications arise when one considers situations simultaneously involving both large mass scales and very small distance scales, currently described by general relativity and quantum mechanics respectively. In order to solve these problems, physicists have been searching for a theory combining the two — called quantum gravity — for several decades. Such a theory would not only give additional insight into how the universe began in the Big Bang, but also predict its ultimate fate.

NATURE ART

NATURE HAVE MANY FACE'S OF DIFFERENT ART

Friday, March 25, 2011

NATURE TRAVEL

SEE THE BEAUTIFUL NATURE

NATURE TARVEL

NATURE FOUND A WAY TO TRAVEL

Monday, March 21, 2011

NATURE TRAVELING

Saturday, March 19, 2011

BEAUTIFUL WALLPAPER

Galaxies Nature

“A large galaxy usually has a central, compact massive object, termed a relativistic black hole for want of a better idea of what it is, that can produce great bursts of energy. When the black hole is surrounded by a cloud of old stars — the ‘bulge’ of the host galaxy — its mass is a few per cent of the mass of the bulge. This relationship, observed for black-hole masses ranging from about 1 million to 1,000 million solar masses, suggests that black holes and bulges evolved together. Other large, spiral-shaped galaxies have black holes of respectable mass (1 million to 100 million solar masses) and no perceptible bulge. How these bulgeless, or pure-disk, spirals and their black holes formed?” P. James E. Peebles (Princeton University, Princeton, NJ, US), “Astrophysics: How galaxies got their black holes,” Nature 469: 305–306, 20 January 2011,News & Views on John Kormendy, R. Bender & M. E. Cornell, “Supermassive black holes do not correlate with galaxy disks or pseudobulges,” Nature 469: 374–376, 20 January 2011, and John Kormendy & Ralf Bender, “Supermassive black holes do not correlate with dark matter haloes of galaxies,” Nature 469: 377–380, 20 January 2011.

“Most of the mass in galaxies does not exist in the form of stars but in a halo of dark matter (matter different from the hydrogen and heavier elements of which we and the stars are made). There is a substantial literature on the elegant idea that dark matter controls the size of the central black hole, but Kormendy and Bender show that this cannot be so. The nearby bulgeless spiral galaxy M101 (figure above) illustrates the situation: if M101 has a central black hole, its mass must be tiny relative to that of the black holes of other spirals with similar dark-matter haloes. There are roughly equal numbers of nearby large galaxies with and without bulges. For example, the galaxy next to ours, M31, has a prominent bulge and a black-hole mass close to 100 million solar masses, whereas our Galaxy, which has a similar dark-matter halo, is bulgeless, and the black-hole mass is only a few per cent of that in M31.

Stars Nature

Stars - An Overview

The Nature of Stars

Our Sun is an average star. Like all stars, it is a large sphere of gas held together by gravity. Stars generate heat and light through nuclear fusion. This process combines hydrogen that was already present in the Universe at early times into helium. In more massive stars, further fusion reactions convert the helium into carbon, then oxygen, then silicon. Everything we see is made from the elements created in massive stars, including our own bodies. Stars are huge factories producing the materials that make up the Universe we see around us today.

Sizes of Stars

Our Sun is approximately 1.4 million km in diameter, but its size will change throughout its lifetime as it evolves. We can only compare stellar sizes at similar evolutionary stages.

White Dwarf stars can be one thousand times smaller than our Sun, whilst Red Giant stars can be over one hundred times larger. That means that stellar sizes cover a range of (approximately) 1,400 km to 1,400,000,000 km in diameter.