24 Feb 2013

Keep learning! But how?

I read this interesting article in Big Think about the techniques for learning. New studies have lead to different conclusions from what was previously believed.

Being a lifetime learner I was drawn to some of these conclusions. The most striking one seems to be about the time period you should re-study taking into consideration the time you want to remember the suject.

Quoting: "Research has found that the optimal level of distribution of sessions for learning is 10-20% of the length of time that something needs to be remembered. So if you want to remember something for a year you should study at least every month, if you want to remember something for five years you should space your learning every six to twelve months. If you want to remember something for a week you should space your learning 12-24 hours apart."

Interesting, uhu?

I believe most people know by now that things have changed and we have to keep studying for all our lives. The pace of change is such that you really cannot avoid to freshen up what you know and if need be to learn again.

if you want to know more go to



11 Feb 2013

What a beautiful name for a star

(photo credit: NASA)


LL Ori is the name of a star in the Orion nebula. This young star produces a stellar wind that is much powerful than our sun's, who is not so young anymore. In this beautifull photo you can see it on the left, burning like fire.

One can see the nebula and some of its stars with a naked eye if the night is clear.

We shoud tell our chidren more about what's happening in the skyes above. Going to an observatory shoud be a good start. NASA has wonderful pictures of the universe that children can see on the screen. However, knowing that they can see them for themselves if they know where to look is another kind of experience.





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