1, 2, 3, 4, 5, 6, 7, 8, 9... and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history of numerical systems.
Rex D' Rozario was not a scientist. Nor was he a science graduate. When it comes to the most influential science journalists, his is a revered name. He was with Kishore Bharati, a Prof Anil Sadagopal's initiative.
The date for an important exam is looming. You know you have to study for it. Suddenly, it’s the evening before the dreaded date, and you feel like you haven’t studied enough, if at all. It’s time to cram all the information you can into your brain.
We know that to do well in exams, you have to remember your material to then demonstrate your knowledge during the test. But is an intense night of study an effective way of learning?
This article explains couple of important properties of triangular numbers, how they can be used in puzzle solving, and how triangular numbers are related to combinations. Concepts are explained in the form of puzzles and graphical illustrations. Triangular numbers are the count of objects that can be arranged in the form of an equilateral triangle. (Just like how square number s are the count of objects that can arranged in the form of a square).
We are bequeathed a legacy of clever and painstaking experiments by the pioneers of modern science. In the age of information overload, it is prudent to consider why we need to dirty our hands doing experiments, instead of merely depending on processed information to push the frontiers of science.
Google celebrates 340th anniversary of the Scietific world's discovery that light travels at a constant velocity. The doodle is based on Romer’s observation study of Jupiter’s moon Io, that subsequently led to his calculation of the velocity of light.
The crucial discovery was made by Danish scientist Ole Rømer in 1676, while working at the Royal Observatory in Paris. Romer's discovery later became the foundation for several pathbreaking discoveries in Physics.
You might have already seen Arvind Gupta explaining the basic shapes in mathematics (& simple organic molecules) by a matchstick model. They are easier to make and very important tools helping learners visually the structures spatially.
“Science is not a subject to be taught just through books”, teacher Narendra Sharma said. “If we provide opportunities to children to learn while doing, they are able to learn easily and do not have to take the path of rote-learning."