February 15, 2014 navigator சூழல் Leave a comment

Indonesian Volcanic Eruption – Covers Cities with White Ash

On 13th February, 2014, night time volcano eruption caused massive disturbance in Indonesian island Java, where the Mount Kelud is located. More than 100,000 people are evacuated, said Indonesian disaster agency. Mount Kelud, known for most powerful eruptions over history, blasted ash and debris more than 12 miles into air and the eruption could be heard upto 200 kilometers away. mount Kelud’s eruption created a white ash bed over an area of 500 km in diameter, covering almost one third

February 13, 2014 navigator Featured, வானியல் Leave a comment

Your Eyes as Time Machines

Have you ever wished you could go back in time to see what the universe looked like in the past? Well, you are doing that when you look into the sky, where light takes time to come to you. The moon, for example is about 240,000 miles away; it takes light about 1.3 seconds to travel from there to here. If a giant asteroid hit the moon, we wouldn’t see the explosion until 1.3 seconds later. Light from the sun,

February 13, 2014 navigator சக்தி Leave a comment

National Ignition Facility Creates Record Amount of Fusion Energy

Scientist at National Ignition Facility, U.S, has created more energy than what they put into the fuel, it is the first time in 50 years of research, scientist could not able to achieve that before. Fusion is the reaction that powers the stars, including our own Sun, and if one could create the same process that energize the core of the star, here in Earth, that will lead to be a source of abundant, cheap and green energy. Still these

February 10, 2014 navigator வானியல் Leave a comment

13.6 Billion Years Old Star Found

Astronomers in Australia on Sunday had announced that they have found the oldest star, that is 13.6 billion years old. This star was formed few hundred million years after the big bang. Previously observed known oldest stars are around 13.2 billion years old, they are two stars discovered in 2007 and 2013. This oldest star, the 13.6 billion old one, is actually in our own galaxy – Milky Way and around 6000 light years away from Earth. The star catalog

February 9, 2014 navigator பொதுவிடயம் Leave a comment

Science Visualization Challenge 2013

National Science Foundation and ‘Science’ journal teams up every year to sponsor the International Science and Engineering Visualization Challenge. The challenge is all about bringing meaningful scientific data to beautiful art, that is easily understandable visuals. Last Thursday, 18 winning entries were announced out of 277 submissions for 2013 competition. Here is the list of winners and their work. Photography – First Place Invisible Coral Flows reveal the hidden flow generated by small hairs (cilia) covering the surface of the

February 8, 2014 navigator பொதுவிடயம் Leave a comment

Oldest Foot Print Outside Africa Found in Britain

Last summer in a village of Happisburgh, Norfolk, rough sea season washed away some portion of the seashore and revealed about 50 foot prints. The researchers then manage to estimate the age of those prints and amazingly they are 800000 to 1 million years old and now the oldest evidence of humans ever found in northern Europe. The previous record of the footprint in Britain is just 7500 years old, therefore this discovery is significant to understand how humans originated

February 7, 2014 navigator வானியல் Leave a comment

Kepler Finds Very Wobbly Planet

NASA’s planet hunting space telescope Kepler had identified a strange world 2300 light-years away, named Kepler-413b in the constellation Cygnus. Whats interesting about this planet is that its unusual wobbles on its spin axis like a child’s top. This planet from binary star system can wobble as much as 30 degrees over 11 years and therefor making the seasons in the planet so erratic. You can compare this to Earth’s precession of 23.5 degrees over 26000 years. This kepler-413b is