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Keck In Motion


I have posted about Very Large Telescope (Chile) in past, this time posting a beautiful video showing Keck observatory in action. Keck observatory is located at the summit of dormant volcano in Hawaii and is used for probing our near and distant universe with great precision (nanometer precision level). The observatory hosts worlds largest optical and infrared telescopes; telescopes are about eight storeys high and weigh more than 300 tons while the diameters of their primary mirror are about 10 m! The telescope uses adaptive optics (AO) which changes it’s shape depending on changes in environmental conditions and thereby eliminates any kind of aberrations or distortions in images resulting from turbulence in earth’s atmosphere. For adaptive optics to work, a bright, nearby reference star is required but since bright stars are limited in the sky, astronomers at Keck have created their own little neighborhood star– by using a laser and exciting sodium atoms in upper atmosphere (90 km above the earth’s surface) resulting in  a bright artificial star which adaptive optics can use as their reference. In this cool video, you can see the Keck observatory in action. In the beginning of video, you see the hexagonal object, that’s the keck 2 telescope. Enjoy the video along with the cool music!

Leave a Comment February 18, 2012

# IAmScience

“Magical things can happen when you enthusiastically open your mouth on the internet.” – Kevin Zelnio

Science writer and marine biologist Kevin Zelnio started the Twitter hashtag #IamScience last month, encouraging scientists to share their individual stories about their traditional or unconventional paths that brought them to where they are today. The response was overwhelming, with hundreds of tweets pouring in over just a few days.Mindy Weisberger compiled some of the tweets and added Reckless Kelly’s “Wicked Twisted Road” to create this video. If readers of this post can share their thoughts about how they got into their profession including science that would be great.

Leave a Comment February 12, 2012

Weekend Video: VDay Special- Look Into Her Pupils


Pupils? Did I mean Look into her eyes? Well the title of this post is correct. According to Bruno Laeng, Pupillometry expert from University of Oslo, we need to look closer and deeper into the pupils of individuals in order to gauge their emotional responses. Pupillometry is basically the measurement of diameter of eye’s pupils. It has been shown during past 50 years of pupillomtery that pupils respond not only to changes in light from surroundings but also to other stimuli including thoughts, emotions and mental loading. Typically, in response to strong emotions or heavy mental loading, pupils dilate which indicates increase in attention of the individual. In other words, if pupils of your loved one increase listening to your Vday proposal, its indication that she has got your attention and that’s a good sign!

Video credit: Science Friday podcast

Pupillomtery article:  Pupillometry A Window to the Preconscious? Laeng et al. | doi: 10.1177/1745691611427305 Perspectives on Psychological Science January 2012 vol. 7 no. 1 18-27

Leave a Comment February 11, 2012

Aurora 2012

While my blog was in hibernation, there was massive solar activity going on which resulted in some spectacular Aurora display on earth. Here is one breathtaking video captured by Christian Mulhauser in Norway during the week of Jan 24. Enjoy the video!

Leave a Comment February 11, 2012

Science is Scamming and Confusing America, How?

Last night’s The Daily Show was awesome as always. Take a look at the video and here is a word of caution: don’t let any scientist con you into believing in evolution or global warming or vaccination or any other “science junk”.

Leave a Comment October 27, 2011

Do You Know What Nano Means?

If not, then this video might help you in understanding what nano is. Beautiful video by Daniel Geis.

Leave a Comment October 27, 2011

Beautiful Aurora Display

It’s been a while I posted something, consider this a semi-hiatus from blogging. I will try to post something from time to time. I have posted several posts on Auroras. Here is another one with video and pictures taken by astronauts on ISS while passing over Indian Ocean on Sep 17th 2011. They took several  images and compiled a video which shows spectacular Aurora display. This particular Aurora display was a result of Coronal Mass Ejection event which occurred in the Sun on Sep 14th 2011, leading to stirring of the earth’s magnetic field and excitation of nitrogen and oxygen molecules in earth’s atmosphere. Greenish part of the Aurora glow is contributed by emission from excited oxygen molecule while blue or purple glow is from nitrogen molecule. Enjoy the Video. Towards the end of the video you can notice some specks and bright glows on earth’s surface which are infact forest wild fires and agricultural fires in Australia.

Image and video credit: NASA

Leave a Comment October 27, 2011

Symphony of Science: The Quantum World

Enjoy the symphony of quantum world featuring Morgan Freeman, Stephen Hawking, Michio Kaku, Brian Cox, Richard Feynman, and Frank Close.

Video credit: http://symphonyofscience.com

Leave a Comment September 7, 2011

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