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 What makes flies different from a dragonfly or a butterfly? How do the lovely iridescent bluebottle and greenbottle flies help solve murders? What do insect bites, galls and chocolate have in common? Do flies have taste-buds? How do we introduce flies in science classrooms? This article explores the fascinating world of true flies, their incredible variety, and the diversity of services they provide us with, ending with an activity that teachers can use to unravel one aspect of the life of flies to students.

How did bad weather and a chance observation of what was most likely a failed experiment, lead to the Nobel-prize winning discovery of radioactivity? In this article, the author narrates the story of Henri Becquerel’s experiments with uranium salts, describing a series of scientific investigations that arose to understand an unexpected and unusual observation, originally made by this physicist.
Are all that children surmise from their day-to-day experiences, actual scientific truth? In this article, we discuss three  examples that show how children have such 'prior mental models' before they enter classrooms, and how these could persist, even into adulthood. We also discuss potential ways to help learners replace these 'prior mental models' with correct scientific models.
 
Introduction
Who were the first people to think of the concept of atomic weights? How were atomic weights of elements first calculated? In this article, the authors explore the long scientific journey from the origins of the widely used conceptual framework of atomic weights to the debates on the topic prevalent even today. 
 
Introduction
How long has the use of anaesthetics during surgical procedures been in existence? What were the pitfalls encountered in finding an ideal anaesthetic? How is an ideal anaesthetic defined? Who were the main scientists and doctors involved in getting anaesthesia to the present level of sophistication? This article throws light on the history of this important medical aid.
 
Introduction
This article in an interview with Dr. Satish Khurana, who is currently working as a Research Associate at University of Leuven, Belgium. His research interests include exploring intrinsic and extrinsic (HSC "niche") factors regulating hematopoietic stem cell (HSCs) function, HSC homing, proliferation and ageing. Before this, Dr. Khurana was completing his doctoral work, also on HSC’s, from the National Institute of Immunology, New Delhi, India.
 

Hridaykant Dewan

Anant Gangola

The concept of Education for All is the foundation for an inclusive society but it cannot be made possible just by extending the existing idea and system of education. A paradigm shift in thinking is required. That is why, it is essential to think about the beliefs, ideologies, practices and resources in the current system of education and assess whether these are appropriate or need fundamental changes.

Are shadows completely dark? Are there some shadows that are darker than others? What do a mobile phone camera and the human eye have in common? Are there any natural pin-hole cameras? How many mirrors do we need to see our right hand appear as it would to others? In this article, the author explores many simple ways in which the teaching of light can link everyday observations to concepts using shadows and reflections.
 
Introduction 
What made J.B.S. Haldane one of the most respected scientists of the 20th century? At the same time, why was he called a ‘great rascal of science’? What are his contributions to science and what kind of a person was he? This article takes us through the remarkable life of one of the most interesting and accomplished scientists of the 20th century.

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