Gravitational collapse

Posterior Cruciate Ligament Everybody has experience an injury in their life. If people where to sit down and think about all the injury’s they have had they could name a few. Some people would say their shoulder. Many people would say their hand or their foot. A lot of people can say that they injured their knee. It seems like knee injuries are more common now than ever. There are many athletes every year that suffer from a knee injury. Wither it be a professional athletes or a college athlete…

Rebecca McKenney Frontiers of Astronomy Mrs. Alburg 26 April 2017 Our Galactic Universe 1. Galaxies can be as large as a few thousand to several hundreds of thousands of light years across. 2. Astronomers, at the time this was released, believe that there are over a hundred billion galaxies in the universe. 3. It is estimated that a light year is 5.88 trillion miles. 4. Galaxies come in three different main type shapes. There are spiral, elliptical, and irregular. 5. Spiral galaxies…

In the early 1900’s the United states was a powerhouse, they were the top industrial producer in the world along with the economy being at its highest in history. But this time was not as shiny and new as it seemed. Mark Twain coined the 1920’s as the “Gilded Age” for a reason. While everyone was buying up the newest models and highest fashions as fast as they possibly could; the country was forming a bubble that would soon burst. There were tow sides to the economy the few who had rich…

The universe is very big. It could be infinite, we aren't sure exactly how big it is because it is still growing. It is home to countless stars, planets, galaxies, and nebulae. Everything is so far apart. For instance, our moon is 238,900 miles away from the Earth. It is about twice as many miles that someone might walk in eighty years, assuming they walk about 7,500 steps every day. The closest galaxy to us is the Andromeda Galaxy, it is approximately 2.9 million light years away. As long as…

simply distinguishing between light and dark. Box jellyfish also have twenty ocelli (simple eyes) that do not form images, but detect light and dark; they therefore have a total of twenty-four eyes. Near the rhopalia are statoliths which detect gravitational pull and help the animal to orientate…

you will return to the Earth in future. People on Earth would experience faster time than you that traveled with your rocket. The same with the speed, gravity also interferes with the flow of time (the other type of time dilation). A massive gravitational force from something just like the black hole which is for instance is so powerful that can bend any fabric of space-time around…

summer, and to be able to heat food and treat our water? - This all thanks to the sun - Without the sun, we all would be dead, it gives us light, heat and energy to heat up the Earth - Most of the energy stays inside of the sun because of its gravitational pull, and all small amounts leave the surface in the form of radiant energy Type of star: Age: Yellow dwarf 4.5 Billion Years Diameter: 1,392,684 km Mass: 1.99 × 10^30 kg (333,060 Earths) Surface Temperature: 10,000°C 5,600 °C How…

As a rule, the gill area is greater in fast-moving crabs (Portunids) than in sluggish bottom dwellers; decreases progressively from wholly aquatic, to intertidal, to land species; and is greater in young crabs than in older crabs. Often the gills are enclosed in protective chambers, and ventilation is provided by specialized appendages that create the respiratory current. As in cephalopod mollusks, oxygen utilization is relatively high—up to 70 percent of the oxygen is extracted from the water…

Chapter 2 LITERATURE SURVEY 2.1. Characteristics of Hydrogen Sulphide 2.1.1. Physical and Chemical Properties H2S is a colourless gas characterised by a rotten gas odour which is highly toxic. It is soluble in different liquids including water and alcohols. It is typically formed under deficit oxygen conditions in the presence of organic matter and sulphate compounds (WHO, 2003). Hydrogen Sulphide is also present in the atmosphere in the range of 0.0001-0.0002 ppm though it may vary with places…