According to the Big Crunch theory, at some point all matter will reverse direction and crunch back into the single point from which it began. Another theory, called the Plateau theory, says that the expansion of the universe will slow to the point where it will nearly cease, at which time the universe will reach a plateau and remain essentially the same.
Measures refractive indices
During the famous Scopes trial in 1925, a Tennessee schoolteacher, John T. Scopes, was accused of breaking that state’s law by teaching Darwin’s theory of evolution rather than the Biblical origins of mankind. The trial was a sensation and astonished many who had never heard that humans might be related to the apes, and from this came the expression, “Well, I’ll be a monkeys uncle.”
Around the world, people have made paper from a wide variety of plant materials, such as wood pulp, rice, water plants, bamboo, cotton, and linen clothing. The ancient Egyptians made paper from papyrus reeds that grew abundantly along the Nile River. Today’s paper fiber comes mainly from two sources: pulpwood logs and recycled paper products. In fact, much of the paper today is a blend of new and recycled fiber. To make paper commercially, companies mash up these wood fibers and mix them with water.
This mixture is mashed into a thin sheet. The sheet is dried and pressed flat into large rolls, cut into different sizes, and converted into paper products. Recycling paper and paper products helps save trees and support the paper-making process. According to the American Forest and Paper Association more than half—53.4 percent—of the paper used in the United States was recovered for recycling in 2006.
Operation Cast Lead
In Victorian times, to “go to The Devil” was to visit a bar on Flat Street near the London Civil Courts. The Devil was a favourite pub for lawyers, who seemed to spend more time in that bar than in their offices. If a client thought his money had “gone to The Devil” to pay for his lawyer’s drinks, he might visit the legal offices to ask for an explanation, where he would be told that the absent lawyer had indeed “gone to The Devil.”
Grass will appear dark in color because it absorbs all other colors of the light except its own green color. The blue light falling on grass will be absorbed by it, and hence, it will appear dark in color.
A star is a huge ball of hot glowing gas, like the Sun, and a planet is a world, like Earth. Stars produce their own light; they undergo nuclear reactions that burn hydrogen in their cores. But planets are lit by light from the Sun. When you look up into the night sky, it is hard to tell planets and stars apart. However, early astronomers were able to tell the difference because planets in our solar system appear to move in complicated paths across the sky, but stars don’t. There are also other observational differences: planets almost never twinkle, but stars do.
If you have ever been to the zoo, you might think that some of the large animals, like the elephant, are the smelliest. But this title goes to one of the smaller mammals, the striped skunk. This black and white-striped creature sprays a foulsmelling, musky fluid as a defense against predators. Most wild skunks spray only when injured or attacked, as a defense mechanism. Their scent is composed of a chemical composition that can be released from one or both of their anal glands, located on both sides of their rectum. They can aim their glands at a target up to 15 feet (4.5 meters) away with great accuracy, but fortunately they tend to give a little bit of advanced warning: to signal being angry or scared, they often stamp their front feet, knead the ground like a cat, and hold their tail erect.
The nasal cavity is made up of two narrow passages that lead from the nostrils to the nasopharynx. In the nasal cavity, air is prepared for its journey into the lower airways and lungs. It is a sensitive space. Jellybeans (as well as other candies, nuts, and peas) are about the size of a child’s nostril, and when lodged inside might get stuck there, or travel too far backward to manually remove. It may take a special trip to a doctor to get any foreign objects removed. Your older sister (or brother) is right: don’t stick anything up your nose, ever.