Multiple satellite methods exist for remote sensing of rip currents each with their own benefits and drawbacks. Photobathymetry, currents interaction using with Synthetic Aperture Radars (SARs), wave refraction, and wave kinematics bathymetry (WKB) are current technologies that are used most often due to the current satellite knowledge. Each of these techniques can be applied using low orbit satellites that are already currently orbiting Earth. All techniques aside from WKB have been tested as satellites
An electric current is flow of electric charge in electric circuits this charge is frequently carried by simply moving electrons inside a wire. It can be carried by simply ions with in the electrolyte, or by simply both ions and electrons like plasma. Ohm’s law states the current all through a conductor among two points directly relation to the optional differences across two points. Introducing this constant of proportionality, the resistance one get to the usual mathematical situation that identifies
Horizontal and vertical ocean currents Ocean currents are horizontal or vertical movement of both surface and deep water throughout the world’s oceans (Briney, n.d.). The primary generating forces are wind and differences in water density caused by variations in temperature and salinity. Currents generated by these forces are modified by factors such as the depth of the water, ocean floor topography and deflection by the rotation of the Earth. Horizontal currents are wind driven, fast moving and
In the last decade, current mode circuits have become popular. Current mode circuits exhibit reliable high frequency response, have simpler architecture, provides better dynamic ranges and operate at lower voltages than their voltage mode counterparts. Among all current mode devices, Dual output second generation Current Conveyor (CCII±) by far is the most popular one. It is widely considered as the op amp equivalent in current mode signal processing. Its performance is characterized by the voltage
Nikola Tesla, arguably one of the most renowned inventors in American history, developed the AC current, patented in 1888, to further ease the use of electricity. He sought for a more efficient way to transport energy and spoke out against Thomas Edison’s use of the direct current. Being a worker for him for some time he got to witness Edison’s tactics firsthand when it came to generating power. Starting as early as the 1880’s, people from around the world started contemplating on how to effectively
desired output voltage or current and frequency. A static semiconductor inverter circuit does this electrical energy inverting transformation. The terms voltage-fed and current-fed are used in relation with the output from inverter circuits. Conventionally, inverters are classified into two broad categories – voltage source inverter (VSI) and current source inverter (CSI). A VSI is one in which the dc input voltage would have to keep constant and independent of the load current drawn. The inverter dictates
the deficit of the U.S. current account. A current account is made up of four separate categories, the combined balance of which results in a surplus or deficit. The four categories are: The Merchandise Trade Account, Services, Factor Income, and Unilateral Transfers. Each account either has a surplus or a deficit, depending on whether money is flowing into or out of a particular country. The U.S. Trade Account deficit currently is the largest contributor to the U.S. Current Account deficit. This
Current Event Article Analysis Article # 1 Titled: Yes: There are Limits to the right to bear arms Source: Union Tribune or Signonsandiego Date: Dec. 21 2007 By: Kristen Rand Summary/Analysis : This article discusses the amendment about gun control specifically the right to bear arms. But it isn’t discussing it on the U.S. mainland but instead on the District of Columbia. The Controversy is whether or not the District is bound to the same laws and amendments that the rest of the United
The Current State of the U.S. Economy The United States economy is racing ahead at dangerous speeds, and it may be too late to prevent the return of widespread inflation. Ideally the economy should move ahead gradually and grow at a steady manageable rate. Mae West once stated “Too much of a good thing can be wonderful” and it seems the U.S. Treasury Secretary agrees. The Secretary announced that due to our increasing surplus and booming economy, instead of having an outsized tax cut, we should
investigate currents. According to the oxforddictionaries.com, a current is a body of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement. Currents can be generated both on the ocean surface flowing horizontally and sub surface flowing vertically. However these currents are generated by different factors. Horizontal currents are generated by the wind blowing across the ocean surface while vertical currents are generated
Current Trends in Educational Technology Abstract Current trends in Educational Technology offer quite an array of subject matter to study. I have selected a few articles demonstrating trends I found most interesting. These include trends in research, holistic technology education, pedagogic balance in technology education and using open source software in the school. Hopefully these trends will be an eye opener for the reader. This paper is based on these journal articles: Research in
great innovators of the age. The combatants, Thomas Edison and Nikola Tesla, were fighting over the prize to power cities in the ever more industrial world. Thomas Edison championed his direct-current (DC) system whereas Nikola Tesla was proposing his system using alternating-current (AC). This “War of the Currents” ushered in the electrical age, from which our modern society arose. Just as the AC and DC electrical generating systems where diametrically opposed to each other; so were Nikola Tesla and
The War of Currents era which was in the late 1880s, was over direct current (DC) and alternating current (AC) for electric power distribution. DC or direct current, which means current flows in only one direction, differs from AC or alternating current which when flowing in a circuit is constantly being reversed back and forth. Both sides had there “Giants” in the scientific world, AC had Nikola Tesla and George Westinghouse and DC had Thomas Edison. Because of their differing ideas these men would
The largest and richest world economy belongs to the United States (“North America,” 2011). Interestingly, this same monstrous economy also holds the title for the largest current account deficit. The U.S. current account deficit is funded from net capital inflows from abroad and has continued to grow throughout the last two decades (Holman, 2001). Economists in the early part of this century theorized that this huge U.S. external deficit was sustainable because it would gradually correct itself
The Current State of Virtual Art and Exhibition Virtual art is the product of long-standing traditions in art merged with revolutionary technological advances. With innovations emerging almost as fast as end-users can test and master new systems, technology has dramatically altered our daily lives and changed our thought processes. Like many technological advances, virtual and cyber realities have been embraced, and often created by, artists that experiment with the myriad of possibilities that
Technology and Adult Learning: Current Perspectives Throughout the 20th century, changes in technology have had social and economic ramifications. Although each successive wave of technological innovation has created changes to which adults have had to adjust, "what perhaps differentiates earlier technological changes from today’s is the current emphasis on educational applications" (Merriam and Brockett 1997, p. 113). The most pervasive of the technologies with educational applications are
Factors that Affect the Current Needed to Melt a Wire Aim: Investigate one factor that affects the current needed to melt a wire. Plan: I am going to investigate what factors affect the current needed to melt a wire. In this investigation, I have decided to change the thickness of the wires that I use, and then while increasing the resistance, I will measure the current needed to melt the different wires. I will start with the variable resistor set to the maximum. I will slowly decrease
Establishing the Current-Voltage Relationship For a Metal Conductor Investigation- To Establish The Current- Voltage Relationship For A Metal Conductor. In this experiment I will be investigating the current- voltage relationship for a metal conductor. The variables that I need to keep constant in this experiment are: 1. Thickness of the wire. 2. Length of the wire 3. Input of voltage coming from the power supply should be kept constant. 4. Temperature of wire should be
There where to main players in The War of the Currents and they were Thomas Edison and Nick Tesla. This war was not a war of violence it was a war about which way we would power everything in America. The two way were A/C (Alliterative Current) and D/C (Direct Current) both of these methods had there ups and downs. Edison was on the D/C side and Nick Tesla was on the A/C both in a fierce competition to prove that there way was the best and disprove the others. This war was for money and fame to power
I chose to do my report on Nikola Tesla. He is a Serbian-American Inventor who was most known for creating the Alternating Current Motor. He was born July 10, 1856. In what is now Croatia. Growing up Nikola’s mother was a huge influence on him becoming a scientist. His father was pushing him to become a priest, but Tesla was more interested in becoming a scientist. In the early years of his life, Nikola’s brother was killed in a riding accident. That is the main reason for him having mental illnesses