Surface Tension You can watch the summary of this post as video here. Picture 1: Floating Metallic Coin due to Surface Tension Picture 2: Surface Tension makes a needle float. Overview Looking at the pictures above, you may wonder what these floating objects are made of. Are they really metallic objects? Yes, they are metallic… Continue reading Surface Tension
Author: rvsundaram
Are We Alone in the Universe? Exploring the Possibility of Extraterrestrial Life
Are We Alone In the Universe? Exploring the Possibility of Extraterrestrial Life Picture credit: https://cdn.pixabay.com Watch video which provides the summary of this post. “Eternal silence of these infinite spaces frightens me.” Blaise Pascal, French philosopher and mathematician. Overview One of the unsettled questions, in the scientific community as well as in the mind… Continue reading Are We Alone in the Universe? Exploring the Possibility of Extraterrestrial Life
Special Relativity
Special Relativity https://www.maxpixel.net Overview In the year 1905, while working as a patent clerk in Switzerland, Albert Einstein published four papers which upended the world of physics. One of the papers was on special theory of relativity. By special relativity paper, Einstein put forward the following radical ideas about the nature of the universe.… Continue reading Special Relativity
What is time?
What is Time? Click here to watch the summary of this post as video. Overview Scientists often highlight the following baffling attributes of time: It is relative and is NOT absolute. Before the Big Bang, it did not exist. It dilates while moving. It freezes inside a blackhole. No surprise, these facts may make… Continue reading What is time?
S.N. Bose
S.N. Bose and His Discoveries S.N. Bose (1894 – 1974) Watch video that provides the summary of this post. Overview S.N. Bose (Satyendra Nath Bose) was an Indian mathematician and physicist who founded what is now known as Bose-Einstein statistics. Later, Einstein extended Bose’s ideas to atoms and predicted an exotic state of matter: Bose-Einstein… Continue reading S.N. Bose
Unveiling the Mystery of Non-Monthly Eclipses: Lunar and Solar Phenomena
Unveiling the Mystery of Non-monthly Eclipses Lunar and Solar Phenomena Watch this video which provides the summary of this post. Solar Eclipse Lunar Eclipse Eclipses As we know, lunar eclipses occur when the Earth’s shadow falls on the Moon as the Earth comes between the Sun and the Moon. This configuration occurs on a full… Continue reading Unveiling the Mystery of Non-Monthly Eclipses: Lunar and Solar Phenomena
Moon Near Horizon
Moon Near Horizon Picture credit: https://live.staticflickr.com Watch this video which provides summary of this post. Overview On a full Moon Day, in the evening, we often enjoy the breathtaking beauty of the rising full Moon in the eastern sky. As it rises from the horizon, it appears so beautiful and big. However, after a while,… Continue reading Moon Near Horizon
Origin of the Moon
Origin of the Moon You can watch the summary of this post as video here. Overview Our planet Earth‘s natural satellite, the Moon, is our closest astronomical object. There are several theories to explain the origin of the Moon. While the two terrestrial planets Mercury and Venus do not have any moon orbiting them, Mars… Continue reading Origin of the Moon
Black Holes
Black Holes Image credit: http://www.nasa.gov/sites/default/files/thumbnails/image/bh_visualization.jpg About the above image: It is a visualization of a black hole and its (hot, thin, rotating) accretion disk formed by the infalling matter spiraling toward the black hole. The disk is distorted because of gravitational lensing. Image credit: NASA’s Goddard Space Flight Center. Overview Can you visualize a… Continue reading Black Holes
Supernovae
Supernova Pic 1. Remnants of Cassiopeia Supernova A (29 Light Years across). Photo credit: Chandra.harvard.edu Watch the video that gives the summary of this post. Overview Supernova is a violent, explosive death of a very massive star. Nova is from the Latin word “novus” which means new, unusual or extraordinary. In 1572, the Danish… Continue reading Supernovae