The Yellowstone Caldera is a volcanic feature formed by the collapse of a volcano into it’s own magma chamber in the North Western edge of Wyoming. Calderas are cool, I’ll give you that. But do you know what’s even cooler? A supervolcano. Supervolcanoes are even more powerful than regular volcanoes.
It is the accumulation of iron in the center of a star which triggers a supernova explosion and the subsequent scattering of the vital atoms of life throughout the cosmos. It was the drawing by gravity of iron atoms to the center of the primeval earth that generated the heat which caused the initial chemical differentiation of the earth, the outgassing of the early atmosphere, and ultimately the formation of the hydrosphere. It is molten iron in the center of the earth which, acting like a gigantic dynamo, generates the earth’s magnetic field, which in turn creates the Van Allen radiation belts that shield the earth’s surface from destructive high-energy-penetrating cosmic radiation and preserve the crucial ozone layer from cosmic ray
The mass of a Star determined the Star's development and time of death. The most of the Star's have age from one billion to ten billion years.The Solar System has a planet where there is a life. The Solar System locates in the Milky Way and the Solar System has 26,000 light years from the center of the Milky Way. The Solar System has known to be life a unique planet. This planet is the Earth.
Craters On The Moon’s Surface Purpose We are trying to find out how the moon’s craters are formed on the moon’s surface. We are also trying to find out if the size and distance of an asteroid, comet, or meteor does or does not have an effect on the size and shape of the crater it creates Hypothesis The size and distance of an asteroid, comet, or meteor does have an effect on the size and shape of the crater it creates. Materials Flour Cocoa powder Shallow pan Small rocks, balls, or marbles Ruler or tape measure Procedure Place the flour in the shallow pan to a depth of about 5 cm. Sprinkle the cocoa powder over the flour. Drop the small marble from shoulder height into the pan.
“This quake was so big”(Los Angeles Times 2). “The most important conclusion is not to panic”(Scientific American 2). In July 1958, Lituya Bay, Alaska was hit by three Geo processes. These were a massive earthquake, a harrowing rockslide, and a devastating tsunami. In 1980, Mt.
The article, ‘Nuclear Winter’ was written in 1983 by renown professor of astronomy at Harvard, and later, professor of astronomy and space sciences at Cornell University, Carl Sagan. This piece of scientific writing was published in Parade magazine, reaching approximately 20 million readers, informing them of the possibility and dangers of a nuclear war. The term ‘Nuclear Winter’ was first coined by Carl Sagan himself, and has since come to refer to the expected global climatic cooling after worldwide firestorms as a result of a nuclear war. Sagan’s article regarding this topic aimed to explore the catastrophic effects of a nuclear war on the Earth’s biosphere, and to educate the general public about the truth of the dangers that it would pose. This article was extremely relevant in the 1980s because of the looming threat of a nuclear war between the United States and Russia.
Here is how to make your dreams come true. What is The Perseid Meteor Shower? The Perseid Meteor Shower is an event that nature can brag about. Every year, the earth passes through a debris cloud left by the comet Swift –Tuttle during its 133-year orbit. I know what you’re thinking… debris?
Birth of Plate Tectonics Plate tectonics is a scientific theory, coined in the 1950s, to explain the large-scale motion of Earth’s lithosphere (the outermost shell of planet Earth). This theory is based on the idea that Earth’s lithosphere is divided into several “plates” that move across the Earth’s surface, relative to each other, gliding over the mantle. The theory of plate tectonics was developed between the 1950s through the 1970s. It is basically the modern version of the theory of continental drift, proposed in 1912, by German scientist Alfred Wegener. His theory however did not explain how continents move around the planet.
Walker (2005) states that ‘Not only is the carbon atom the building block of life (…) it also provides us with a means of dating life’. Radioactive dating is based on the disappearance or development of an isotope because of radioactive decay (for example, artificially produced isotopes 137Cs/134Cs). Isotopes are atoms of elements with different numbers of neutrons. An atom is the smallest unit that defines the chemical elements and their atoms. The nucleus is situated at the centre of an atom and contains protons (positively charged
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion (thermonuclear weapon). Both reactions release vast quantities of energy from relatively small amounts of matter. The first fission ("atomic") bomb test released the same amount of energy as approximately 20,000 tons of TNT (see Trinity (nuclear test)). The first thermonuclear ("hydrogen") bomb test released the same amount of energy as approximately 10,000,000 tons of TNT. To illustrate the destructive effect of the atomic bomb, On August 6, 1945, during World War II (1939-45), an American B-29 bomber dropped the world’s first deployed atomic bomb over the Japanese city of Hiroshima.
The bomb almost exactly hit it’s mark. It was more than 9,000 pounds and uranium 325. The bomb exploded 2,000 feet above Hiroshima. The blast equaled to 15,000 tons of TNT. It destroyed 5 square miles of the city (“The Atomic Bombings of Hiroshima and Nagasaki”).
Figure 7. Stratigraphic exposure at profile 13-6 within the maar crater showing base-surge deposits (D1), bedded scoria from the post-maar cinder cone eruptions (unit D2), laminated lacustrine high stand rhythmite (unit D3), and recent slopewash (unit E). Inset photograph provides a close-up view of the unit D3 lacustrine rhythmite. Figure 8. Calibrated radiocarbon ages (black), OSL ages (gray), and inferred timing of ZSL eruptions.