Waves

interior portion of the center, known as the "inner core" is thought to be solid iron. Answer 2: The main evidence for the structure of the Earth comes from studying waves generated during an earthquake. When stress builds up and rocks at depth break, then elastic waves, just like sound waves are sent from the point of rupture. These waves speed out and move through the earth. When we put seismometers…

and position of targets. They work by sending a beam of electromagnetic waves at a specific frequency, at a moving object. When a microwave bounces off the object, its wavelength shifts as the object moves (this is known as the Doppler effect). The radar detects the shift and calculates how fast the object is traveling, along with it's location. 2. Polarized sunglasses block reflected light (glare). Since polarized light waves travel in a generally horizontal direction, the glasses have a…

Sushil Bhandari (1997) defined vibration as a repeated movement in the normal rest position. The parameters involved with vibration are commonly amplitude or displacement and velocity or acceleration of the ground movement (Visvan, 2005). During demolition operation, vibration is normally caused by the impact of fallen structures or by the use of explosives (BS 6187:2000), which could pose detrimental effects of structural damage of adjacent premises, buried services like gas pipes, disturbance…

In order to extract energy from ocean waves, one must first understand how waves are formed. Solar radiation from the sun is absorbed differently on the earth’s surface. The imbalanced heating of the earth’s surface causes the warm air to expand and rise, whereas the cool air sinks due to its higher density, thereby generating a pressure gradient. In order to return to an equilibrium state, the air from the high pressure zone has to replace the air in the low pressure zone. The movement of…

international tourist arrival.(S. Kim, 2012). Essentially to location and site associated with Korean TV dramas. Hallyu phenomenon, or the K-wave or also called Korean Wave, refers to Korean generated popular cultural products that includes, manga, music, games, movie TV dramas, food and fashion, that made a strong penetration in the Asian Market . (“Hallyu Wave and Tourism,” 2013)but also all around the world with the involvement of his personal image. But essentially in Shout East and Est…

So it makes sense to harness the very essence of energy and use it as an alternative energy source, and wave generators aim to do just that. Like all generators, a wave generator works by converting mechanical energy into electrical energy via electromagnetic induction. In 1831 Michael Faraday discovered that moving a wire through a magnetic field induces a voltage in the wire that is…

Explosive blast waves and the unseen damage to the human brain. Before the war in Iraq and Afghanistan traumatic brain injuries, mostly occurred due to vehicular accidents or sport injuries, since “2000-2011 229,106 U.S. service members suffered a TBI incident” (Magnuson, Leonessa, and Ling 570). To understand how the explosive blast waves affect the human brain you need to understand how explosives cause a change in atmospheric pressure. As well as knowing what can happen to the brain when it…

In Rick Yancey’s The Fifth Wave, Cassie, a teenager, wants to save her brother. The Others invaded with different waves and Cassie is living through them. The First Wave destroyed all electronics including vehicles all vehicles. The Others used an EMP to take out the lights. It was over in seconds but the lights stayed off. The Second Wave was slightly longer. The Third Wave was the Blood Plague, this wave lasted weeks upon weeks. Cassie’s mom started to show symptoms of the plague. So her…

Waves It’s two o’ Clock on a warm 90 degree Iowa day. I’m headed down the road with the windows down and my hand out the window on the beautiful day. I have the music cranked up in my car listing to my favorite song. I’m in a wonderful mood because I had early sign out and its warm out and at the moment I have no worries in the world. I am cruising along in 5th gear about 60 miles per hour on the road going home from school enjoying the rest of my day. I see a car coming and decide to wave but…

popular culture entered the global market via its television series better known as K-drama. The export of Korean dramas sparked off a palpable craze for Korean cultural commodities in early 2000. This popular cultural phenomenon known as the Korean Wave or Hallyu has seen a surge in interest in Korean culture especially through the study of the Korean language and understanding of the culture through travel. In this essay I would like to shed light on how this popular culture came to be and the…