history of science

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salts, describing a series of scientific investigations that arose to understand an unexpected and unusual observation, originally made by this physicist.
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

This teacher manual is based on the history of electricity. The purpose behind this Teacher Manual is to make teachers more confident in their content and pedagogy so that they could facilitate in developing nature of science in children by presenting it in the form of processes by which electricity was evolved and brought into existence. And what are the steps or necessary requirement for science student to inquire or explore.

One of the most insightful sentences I have come across for a (science) teacher is, "Take a thing you know and change one thing; its scale, its material and/or its context". Baahubali director S S Rajmouli had internalized that quote quite imaginatively. That was my first impression while watching the 2 parts. In many interviews he shared his childhood fascination for Amar Chitra Katha stories. He did change the scale of movie making, the material (story) was more or less oft-repeated.

Here is an Aha! moment in the history of science when Eratosthenes proved Earth is not flat. These clips are from the astronomer & master science communicator Carl Sagan's Cosmos.

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