The experiment of Michelson and Morley     

Amit Roy 《Resonance》2017,22(7):633-643

Light was assumed to propagate in a medium called ether which was all pervading and stationary. Earth’s motion through ether was expected to have an effect on the velocity of light in the direction of the relative motion by the law of addition of velocities. Michelson–Morley experiment used an interferometric technique to detect this effect and got a null result, which was the first strong evidence against existence of ether and eventually had a natural explanation in special theory of relativity.  相似文献   

Story of superconductivity     

Amit Roy 《Resonance》2017,22(5):461-473

Electricity is carried through metallic wires, called conductors. In the process, electrons move through metallic conductors that offer resistance (the value depends on the particular metal used), to the passage of electrons. This leads to the production of heat and loss of energy. This heating process is utilised in many electrical devices. However, for transmission of electrical energy from the power plants to the user and in many other applications, it would be a great boon if no energy was lost to resistance. The discovery of superconductivity by Heike Kamerlingh Onnes in 1911 at Leiden, offered a glimmer of hope to make this dream possible. It was a discovery totally unexpected at that time, and we owe this discovery to the painstaking and methodical investigations of Onnes–first to produce very low temperatures, and then measure properties of materials at these freezing temperatures.  相似文献   

Demons in physics     

Amit Hagar 《Metascience》2014,23(3):475-484

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Demonstration model of self inductance using relay     

Amit Ram Morarka 《Resonance》2016,21(5):457-465

Using an electrical component like a relay, the phenomenon of self inductance caneasily be demonstrated to undergraduate students. By wiring simple electrical components like relay, neon bulb and a DC power supply, intermittent back electromotive force (emf) can be generated in the range from 60 to 100 volt. The glowing of neon bulb provides visual evidence for the generation of large back emf due to self inductance.  相似文献   

Impact of AR-based collaborative learning approach on knowledge gain of engineering students in embedded system course     

Kumar  Amit  Mantri  Archana  Singh  Gurjinder  Kaur  Deepti Prit 《Education and Information Technologies》2022,27(5):6015-6036

Education and Information Technologies - Collaborative learning is the favored approach educators use to inculcate social skills and promote peer interactions in students. Embedded Systems is a...  相似文献   

Optimal educational climate among students at risk: the role of teachers’ work attitudes     

Freund  Anat  Zriker  Amit  Sapir  Zehava 《European Journal of Psychology of Education - EJPE》2022,37(1):207-226

European Journal of Psychology of Education - One of the most significant phenomena among students at risk is low resilience. However, very little is known about teacher-related factors that affect...  相似文献   

Parents' Perception towards Inclusion of Agriculture in School Curriculum in Rural India     

Amit Yadav 《The Journal of Agricultural Education and Extension》2016,22(3):241-254

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The ‘What is a system’ reflection interview as a knowledge integration activity for high school students’ understanding of complex systems in human biology     

Jaklin Tripto  Zohar Snapir  Miriam Amit 《International Journal of Science Education》2016,38(4):564-595

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Using Learning Style Instruments to Enhance Student Learning     

Thomas F. Hawk  Amit J. Shah 《Decision Sciences Journal of Innovative Education》2007,5(1):1-19

The emergence of numerous learning style models over the past 25 years has brought increasing attention to the idea that students learn in diverse ways and that one approach to teaching does not work for every student or even most students. We have reviewed five learning style instruments (the Kolb Learning Style Indicator, the Gregorc Style Delineator, the Felder–Silverman Index of Learning Styles, the VARK Questionnaire, and the Dunn and Dunn Productivity Environmental Preference Survey) in this article in order to describe the learning style modes or dimensions measured in the instruments; find the common measures and the differences; report on research on instrument validity, reliability, and possible improvement in student performance; suggest classroom activities that work with the different student learning styles; and recommend selection of models under several conditions. We also review one additional learning style instrument, the Revised Approaches to Studying Inventory, as a complementary approach to using one or more of the first five learning style instruments.  相似文献   

The Poor Man's Lamb Revisited? Assessing the State of LPFM at its 10th Anniversary     

Colleen Connolly-Ahern  Amit Schejter  Jonathan A. Obar 《The Communication Review》2013,16(1):21-44

In this article the authors report the results of a year-long investigation into the state of the low-power FM (LPFM) industry on its 10th anniversary. They question whether LPFM stations give voice to the previously voiceless as envisioned or, as some research has indicated, benefit religious communities' efforts to expand their cultural reach. Using a 2-phase study, the authors first mapped the LPFM industry using Federal Communications Commission data and public information provided by LPFM stations and their owners and operators over the Internet. The authors then conducted interviews with dozens of LPFM operators across the United States. Results indicate that large interests, in particular religious organizations, have created de facto networks that rely on outside entities for the majority of programming, thus circumventing the spirit of the original policy.  相似文献