DNA Strand simulation using Excel

Excel can be used to create neat little simulations for classroom traings. I remember a long time back, I had a tough time trying to understand how the strands of a DNA coil around each other. Well....I tired my hands at creating a rotating DNA strand using 3-D bubble charts.....stright 'n simple for the most part......the trick lies in making the base and linking pairs change ...

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DNA Strand simulation using Excel

The long march of evolution

Posted on 01 September 2008

The long march of evolution
Interesting to see how humans travelled from Africa and moved to Asia (75,000 years ago), Europe (50,000 years ago) and Americas (35,000 years ago). Here are the important learnings: 1. Adam and Eve lived in Africa and started eveything 2. The Russians were the first ones to discover America 3. It took man nearly 50,000 years to walk all ...
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Local crab vs. the Helix Nebula

Posted on 24 August 2008

Local crab vs. the Helix Nebula
The former is a local crab. Discovered by me and will probably only ever get a mention in its lifetime in this post. Radius around 5 cm. The later is the Helix Nebula located 650 light-years away in constellation Aquarius. Discovered by Karl Ludwig Harding, probably before 1824. (according to wikipedia). Often been refered to as the eye of the God. Radius 2.87 light years. Image Courtesy NASA/JPL-Caltech. http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=sig07-016 The local crab is ...
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