Hi everyone! You might be wondering why I thought of writing about the periodic table. Well, the answer is “just for fun!” History of the Periodic Table The first human classification of elements was done by Antonie Lavoisier back in the 18th century. In his classification, he included certain elements like Oxygen, various compounds andContinue reading “The Periodic Table as a mirror”
It’s been a long time since I posted my last article. Of course I had enough time to write articles on Science and stuff, but I couldn’t make my mind, because of all these things happened and happening in Sri Lanka one after another which made me very frustrated. How can I talk about ScienceContinue reading “What is happening to Sri Lanka?”
Today I decided to tell you about the meteor shower, ‘Geminids’ which had its peak on 13-14 December. Most of you are aware of this meteor shower and I know that you have observed it too. This is one of the most popular and attractive meteor showers where about 120 meteors fall per hour. InContinue reading “Geminids Meteor Shower”
Have you ever felt that overwhelming feeling when you look at a sky full of stars? Well, I have. It is a feeling I cannot describe. It is mysterious. It is some kind of a mixture of happiness and excitement. A sight of a dark sky filled with sparkling little stars is able to bringContinue reading “World’s best stargazing spots”
A beam of morning sunlight
fell on my book
and made me look
at the silvery dust particles
sparkling in the air.
A man said,
“Oh! It’s raining. What a muddy day.
Today’s gonna be a very bad day.”
Then the sky said,
“Don’t you like it?
Then let it be a sunny day
with a lot of sunlight.
On October 6, 2020 (today), Mars comes to its closest distance from earth which is only 62.07 million kilometers (38.6 million miles)! You’ll be able to see it in your eastern sky as a red bright ‘star’ when the dark falls (For most of the countries including Sri Lanka) and it will come to itsContinue reading “Mars’ Closest Approach October 6, 2020”
As I said in my previous article on spherical trigonometry, spherical triangles are made out of 3 parts of 3 great circles. Now we will discuss about great circles. Great circles and small circles. Great circles of a sphere are circles that are drawn on a sphere with the same diameter of the sphere. IfContinue reading “Basics for Astronomy Olympiads and Quizzes: Introduction to Spherical Trigonometry (Part 2)”
https://anchor.fm/dulshi-ranaweera/episodes/Thank-you-SO-MUCH-etc3ec Click this if you want to listen! Dear adults, Thank you so much for contributing to ruin our future. You’ve taken a very good decision this time. You took the same decision over the past years since we got independence from Britain and that idea you have to ruin your children’s lives have grownContinue reading “Thank you SO MUCH!”
Spherical Trigonometry is the subject related to Spherical Triangles. Simply, spherical triangles are triangles that are drawn on a sphere, but to be a spherical triangle, the sides of the triangle should be made out of great circles of the sphere. I will explain more about Spherical Triangles and great circles in my next article.Continue reading “Basics for Astronomy Olympiads and Quizzes: Introduction to Spherical Trigonometry (part 1)”