This technology comparison matrix helps select the right NoSql database based on the data model and nature of queries required by your application
The big data technology landscape consists of such a large number of choices, that often the most critical step in successfully implementing a solution is choosing the right platform that will address the requirements of the problem at hand, and that is sustainable in the long term. With such a …
You know, people think mathematics is complicated. But mathematics is the simple bit, it’s the stuff we can understand. It’s cats that are complicated. I mean, what is it in those little molecules and stuff that make one cat behave differently than another, or that make a cat? And how do you define a cat? I have no idea.
Why are human faces so unique?
What’s in a face? The amazing variety of human faces — far greater than that of most other animals — is the result of evolutionary pressure to make each of us unique and easily recognizable, according to a new study out of UC Berkeley.
Behavioral ecologist Michael J. Sheehan explains that our highly visual social interactions are almost certainly the driver of this evolutionary trend. Many animals use smell or vocalization to identify individuals, making distinctive facial features unimportant, especially for animals that roam after dark, he said. But humans are different.
In the study, Sheehan and coauthor Michael Nachman asked, “Are traits such as distance between the eyes or width of the nose variable just by chance, or has there been evolutionary selection to be more variable than they would be otherwise; more distinctive and more unique?”
As predicted, the researchers found that facial traits are much more variable than other bodily traits, such as the length of the hand, and that facial traits are independent of other facial traits, unlike most body measures. People with longer arms, for example, typically have longer legs, while people with wider noses or widely spaced eyes don’t have longer noses. Both findings suggest that facial variation has been enhanced through evolution.
“Genetic variation tends to be weeded out by natural selection in the case of traits that are essential to survival,” Nachman said. “Here it is the opposite; selection is maintaining variation. All of this is consistent with the idea that there has been selection for variation to facilitate recognition of individuals.”
How can you use science to make a better paper airplane? Join Ross of the Live Science Team as he investigates how a wing works, the physics of flight and the science behind making a paper plane: http://youtu.be/AGzOOM0Pz98
Dahanu and Tarapur are coastal forts in picturesque locations at the northern end of the Maharashtra coast with pristine beaches along side – a great holiday!
Glimpses from Veloraid 2014
Morning ride to Gorai, Manori, Madh and Versova… Realized how much I missed Mumbai