Tag Archives: science

Brain Hemispheres

We have two brain hemispheres, the left and the right hemisphere. It seems that right-handed people use their left hemisphere (linear sequence) more than their right hemisphere, and left-handed people use more their right hemisphere (visual simulatneousness).

In a few words, the left hemisphere needs to finish a task before it starts another, while the right hemisphere combines different tasks at the same time (this generates an excellent multitask hability).

Which is your predominant hemisphere?

Go to this link, and depending on the direction you see the dancer turning around is the predominant hemisphere in your brain. If you see the dancer turning clockwise it means that you use more your right hemisphere and vice versa.

NOTE: The dancer can change direction if for example you start singing, multiplying, reading, etc.


  • Verbal
  • Analytic
  • Temporal
  • Rational
  • Digital
  • Logical
  • Linear


  • Not verbal
  • Synthetic
  • Not temporal
  • Irrational
  • Spatial
  • Intuitive
  • Holistical

The video shown below is one of the best I’ve seen on the TED collection. It shows a doctor’s experience with a brain stroke in her left hemisphere. The video narrates what is happening to her, physically and mentally during the stroke and how her perception of things and her attitude towards life changes after this event.

I HIGHLY recommend it.



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A little bit of numbers

Triángulo de Pascal

Pascal's Triangle

The concept is simple: each number inside each box represents the sum of the number written above it and the number written on its left.

This triangle created in 1665 by Blaise Pascal has become one of the most representative images of the history of science, mainly because it contains numerous mathematical patterns.

For example, the first column in the left side shows number “1” numbers, the next column shows countable numbers “1,2,3,4…”, the third column shows triangular numbers “1,3,6,10…”, the fourth column shows tetrahedral numbers “1,4,10,20…”, and so on.

It also contains probability patterns, polynomial numbers, horizontal sum sequences and the Fibonacci sequence, among other things that can be seen here.

Is math in everything?

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Filed under I only know that I don't know anything