Rabi‚ a physics professor at Columbia University‚ suggests a clock could be made from a technique he developed in the 1930’s called atomic beam magnetic resonance. 1949 Using Rabi’s technique‚ NIST (then the National Bureau of Standards) announces the world’s first atomic clock using the ammonia molecule as the source of vibrations. 1952 NIST announces the first atomic clock using cesium atoms as the vibration source. This clock is named NBS-1. 1954 NBS-1 is moved to NIST’s new laboratories
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Effects of Clinical Alarms: Alarm Fatigue Juleen Barnes Maria Galo-Parrilla Harriet Meulendyke Elynor Furlan HSN 510 February 23‚ 2015 Delores Deihl The Adverse Effects of Clinical Alarms: Alarm Fatigue Technology has taken over the patient’s bedside. The sounds of ventilator alarms‚ cardiac monitors‚ and infusion pumps are only a few reverberations heard through the halls of any hospital. As we attempt to protect our patients by using sophisticated technology‚ device alarms place them in danger
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“Runaway Love” Ludacris does a remarkable job of portraying his message about the struggles that some adolescents are faced with. “Runaway Love”‚ by Ludacris‚ featuring Mary J. Blige (2007)‚ represents the theme of struggle through hip-hop and rap music. It is about little girls who are “stuck up in the world on their own.” They have to take care of themselves because the people they are around do not care about them. They range from nine to eleven years in age‚ and their goal in life‚ at such a
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Homeowners Purchasing a High Water Alarm System The advantages of installing a high water alarm system are many for the homeowner. All it takes is for a sump pump to stop working or a pipe to freeze and burst and the homeowner could have thousands of dollars in damage to their home. The fact is that a high water alarm system is a necessity when you own a home. Many of the systems‚ such as the Glentronics‚ Inc. BWD-HWA Basement Watchdog Water Sensor and Alarm are designed to work with your sump
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An investigation on the activation energy for the iodine clock reaction Introduction: The iodine clock reaction is a presentation of chemical kinetics‚ which are the elements that affect the rate of chemical reactions. When the two colorless solutions are incorporated together‚ no reaction can be spotted. But after a short period of time‚ the solution turns into a dark blue solution. The term rate of reaction is stated as the decrease in the concentration of one of the reactions or the increase
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which non-rational or magical phenomena play a significant part’ (Manlove‚ 1975‚ 1). Following this definition‚ The Cuckoo clock would be classified as a fantasy by several elements in the story. To begin with‚ the story is based on the classic idea of a child communicating with animals or objects. In this case‚ that object would be the wooden cuckoo coming out of the clock. This idea itself is quite a common subject matter for children’s literature. For example in Little Princess‚ the little girl
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Runaway Slaves: Rebels on the Plantation by John Hope Franklin and Loren Schweninger In the book Runaway Slaves: Rebels on the Plantation ‚ by John Hope Franklin and Loren Schweninger‚ the plight of the African American slave is analyzed in strenuous detail. The authors use real stories of slaves‚ discovered in newspaper articles‚ court records‚ diaries‚ letters and runaway posters to give the reader a more personal approach as to the real situation African slaves faced. The book discusses discontent
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Sensitive LPG Leakage Alarm This project is an ultra-sensitive LPG sensor that generates loud beeps when it senses any gas leakage. It detects vapours of liquefied petroleum gas anywhere between 200 and 10‚000 ppm and drives a pies buzzer to catch attention for immediate action. The buzzer beeps until the concentration of gas in the air decreases to a safe level. The circuit uses an MQ6 gas sensor‚ which is designed to sense LPG‚ propane and isobutene gases. Circuit and working
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PHYSICS IV ECO CLOCK Investigatory Project SY 2011-2012 Submitted to: Mrs. Josalyn Ungos Submitted by: Group IV Fourth Year – Our Lady of Guadalupe Dela Cruz‚ Jensine Beatrice Diamante‚ Christine Jade Cruz‚ Chinny Marie Elumbaring‚ Ericka Joy Dajac‚ Sacha Bianca The researchers named their project as “Eco Clock.” They chose to investigate on this project because they are aiming to promote the use the natural resources as a source of electricity. They were able
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sprinkle the quarters on the morning town‚” which is to say‚ he heard the bell toll each quarter of an hour as though it were raining down upon him just to mock him. The man counted them one-by-one until‚ on the final ring before he met his fate‚ “the clock collected in the tower its strength‚ and struck”. The clock’s strength refers most probably to how heavily it must ring. To the man‚ on that final quarter hour toll‚ it must have sounded as heavily as he had ever heard it. For‚ truly‚ it would be the
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