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eHam.net News
/////////////////////////////////////////// Eye on Education: Ham Radio Club: Posted: 13 Feb 2016 04:23 PM PST http://www.eham.net/articles/36172 Bishop Ryan's amateur radio class has entered a week-long, worldwide competition for the first time this year. John Doran stopped by to see how the students enjoyed going over the waves. (John Doran-KX News) For the first time, Bishop Ryan school is getting competitive with their ham radio, entering into the "School Club Roundup" competition. (Joe Ferrara-Ham Radio Teacher) "The idea here is to talk to, to get high schools, middle schools and universities all over the world on it the same week." (John Doran-KX News) The objective of the contest, which involves every level of schooling, is to see how many people you are able to connect with using a ham radio. Using the radio isn't just as simple as picking up a microphone, however, there's plenty of science and mathematics involved. Students like 8th grader Corbin Okeson know that fitting this in with the rest of their curriculum will one day help land him in a good college. (Corbin Okeson-Bishop Ryan 8th Grader)"It looks really good on degrees. Say you're trying to get a job in engineering and they say, 'oh you took ham radio?' It teaches you a lot and it's going to set me up for life." (John Doran-KX News) Joe Ferrara, the teacher, has seen many students come through his class go on and pursue successful careers. Especially in its inaugural year about 10 years ago. (Joe Ferrara-Ham Radio Teacher) "When we started this we had three kids in our amateur radio class and one is a Navy Seal, one has a PhD in Mathematics and the other has a PhD in optics, so it seems to work." (John Doran-KX News) But what draws students to ham radio is the fascinating ability to instantly connect with people around the globe with no cell phones and no internet. /////////////////////////////////////////// Prediction Methods in Solar Sunspots Cycles: Posted: 13 Feb 2016 04:22 PM PST http://www.eham.net/articles/36171 The Sun is an important source of energy in our life. The sunspots and solar flares have been observed and studied by many researchers. Many models which are developed from the Ohl's Precursor Method1 have yielded varying degrees of success in predicting an upcoming solar activity. In this study, a simplified movable divided-blocks diagram is proposed to explain the underlying physical principle of the Ohl's Precursor Method. Based on the movable divided-blocks diagram, the most promising and interesting regions for statistical evaluation are identified. The strong correlationship between the sunspots activity numbers and the geomagnetic index is numerically calculated and subsequently verified. It is consequently shown from a statistical study of the time-delayed solar events that the electromagnetic pole members to which the sunspots are associated, are moving with a time interval which is determined statistically in this study, toward the Sun's Equator in each solar cycle under the influence of electromagnetic torques which are the higher-orders corrections to the rotating magnetic dipoles. The sunspots, though seem to have occurred randomly on the Sun, have exhibited another regular feature. A butterfly pattern, which is observed in each of the solar cycles over the centuries, has long been a puzzling phenomenon. The butterfly pattern, as shown below, could be inferred from the various projected end-points left by the precessing motion of the magnetic moments under the influence of the electromagnetic torques. The calculated results are compared with the observed sunspot butterfly diagram. The similarity between them is interesting for further investigation and discussion. A recent attention has been focusing on the possible forthcoming new ice-age like climate2, which is based on a mathematical regression model that extracts two principal components in the solar background magnetic field. This effect would have a serious impact in our life. An understanding of the sunspots activity and a long-term planning would help us to better prepare with the changes. The correlation factors are calculated from the solar and geomagnetic data sets with the selected time-windows as implied and chosen from the movable divided-blocks diagram. A statistical study of the time-delayed events, which would eventually produce a reasonable prediction on the timing of the peak in the monthly sunspots numbers in the ascending phase of an upcoming solar cycle, is presented for further investigation. |
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