Radio waves for Communication Radio waves are electromagnetic waves with wavelengths larger than the infrared light. Like all other electromagnetic waves‚ they travel at the speed of light. The wavelengths can vary from the size of a football field to the size of a football. They can be produced naturally by large stars and by lightning. Man-made radio waves are used for transmitting signals and currents. Specific Properties of Radio Frequency (RF) Current Radio frequency is the frequency of radio
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Black Feminism in Britain Black feminism in Britain is a very strong issue. This topic could be addressed in so many ways‚ so I decided to address the issue through others writings. Black women have been pressing the issue of equality for a very long time now‚ and being black women presents a two -fold issue on equality. Being Black automatically make you a minority and being a woman takes away from your standpoint even more. This is why Hazel Carby feels that being just a feminist is nit
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water waves caused by the displacement of a large volume of a body of water‚ typically an ocean or a large lake. The effects of tsunami will bring a lot of problem to the nation and community. The effects of tsunami will bring a lot of problem to the nation and community .The general cause of tsunami is earthquakes and it will makes environmental impact and destruction. Firstly‚the main cause of tsunami is from the effect of earthquakes.Tsunami‚ also called seismic sea waves or‚ incorrectly
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A Summary of Virginia Woolf’s Feminism Mary Wollstonecraft and other feminist and abolitionists had a major influence on Virginia Woolf’s feminism. Wollstonecraft wrote A Vindication of the Rights of Women in 1797. Her tract was based on the enlightenment that she used in many of her arguments. She believed that reason‚ rationality and virtue lead to a better society. She also believed that reason and education would improve the status of women‚ and that the improvement of women leads to the
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The Awakening Feminism has consistently been a major theme of literature throughout history. It has been used as a commentary on the status of women in a given time period‚ or to show how people’s attitudes have changed over time. Feminism in literature can also be used‚ as in the case of The Awakening by Kate Chopin‚ as a way to show how individual people‚ especially women can have a positive effect on the world around them. The actions of Edna and Adele Ratignolle in The Awakening are examples
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A Feminist Outlook on Maternal vs. Paternal Instincts in Beloved Since the beginning of time‚ the mother and child relationship has differed greatly from the father and child relationship. Though both parents love their child greatly‚ both parents dare not cross certain boundaries. The limitations of protection for a mother are far different from paternal limitations. In her novel‚ Beloved‚ Morrison introduces the subject of infanticide‚ and explores the differences in justification between men
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Longitudinal and transverse waves Sound is transmitted through gases‚ plasma‚ and liquids as longitudinal waves‚ also called compression waves. Through solids‚ however‚ it can be transmitted as both longitudinal waves and transverse waves. Longitudinal sound waves are waves of alternating pressure deviations from the equilibrium pressure‚ causing local regions of compression and rarefaction‚ while transverse waves are waves of alternating shear stress at right angle to the direction of propagation
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The book The Wave by Morton Rhue is a fiction story but is based on an incident that occurred in a high school in Palo Alto‚ California. In the book‚ history teacher Ben Ross shows a movie to his high school class about Germany while studying World War Two. After a series of questions after the movie‚ Ross conducts an experiment to roughly explain the cruel behavior of the German Nazis during the Holocaust. He starts an organization called the Wave in his class that spreads rapidly throughout the
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The issue of feminism has been critical while at the same time being controversial in most of the nations in the different parts of the globe since the 18th century (Hannam‚ pg. 3). To most of the people‚ feminism has come to be perceived as just an ideology that is mainly practiced by those in the political arena. In most parts of the world‚ people have organized some demonstrations whose primary goal was to call for reforms that would enhance equal sharing of resources to the women just like their
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What are UltraSonic Waves? Ultrasonic waves are sound waves with frequencies high about human hearing and short wave lengths. Sound waves have frequencies about 20‚000 to 100‚000. Also Ultrasound frequencies range from 20 kHz (the upper range of hearing for a young adult human) through 150 kHz (audible to some bats and other creatures)‚ right up to 10 MHz (used in some medical treatments and industrial cleaning applications). While these frequencies overlap with those of radio waves‚ they are different
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