Send us your questions

Some of our visitors have sent emails with interesting questions, we decided to start having a space to answer them. In this space the blog "Restless Minds" will answer all questions you send us
Send us your question for the email: Restless Minds.

Science progress affects our daily life and "to know" means you are going to chose right, because it allows you to form your own opinion on scientific everyday issues. On the other hand, having an elegant and harmonious vision of the world where we live in leads to a feeling of intellectual satisfaction.
We believe this kind of scientific day to day knowledge should be encouraged from an early age, and that's why this project was born: science, culture, knowledge, crafts for your restless mind.

Friday, February 17, 2012

Instant facts- Just add water 50

The weight a person loses directly after intense physical activity is weight from water, not fat.
in http://www.allaboutwater.org

Thursday, February 16, 2012

Instant facts- Just add water 49

Dalmatians are completely white at birth.
in http://facts.randomhistory.com

Wednesday, February 15, 2012

Instant facts- Just add water 48

There are more bacterial cells in the body than human cells.
Scientists have estimated that about 95% of all the cells in the body are bacteria. The vast majority of these microbes can be found within the digetive tract.
in about.com

Tuesday, February 14, 2012

Be my valentine

Happy Valentine's Day:

Other Valentine's Day ideias here.

Et voilá!
Spread the love.

Enjoy!

Instant facts- Just add water 47

JK Rowling's Harry Potter and the Order of the Phoenix is the fastest-selling book ever.
in http://www.look4books.co.uk/

Monday, February 13, 2012

Instant facts- Just add water 46

To win a gold disc, an album needs to sell 100,000 copies in Britain, and 500,000 in the United States
in http://didyouknow.org

Friday, February 10, 2012

Swirling colors in a milk bowl

Try this and watch the colors swirl in a milk bowl. This is very easy to do and takes less then a minute to do.

We need:

  • bowl,
  • food coloring, red and blue,
  • toothpicks,
  • detergent,
  • milk.
How to:
  1. Pour a bit of milk on the bowl;
  2. Add 2 drops of blue food coloring;
  3. Now, away from the blue, add another 2 drops of red food coloring;
  4. Let your restless play with the toothpicks and the milk on the bowl, let them "draw" at will, What happens?
  5. Now, add a drop of detergent;
What happens?
The colors blend immediately, almost instantly, after we add the detergent

Why?
When we add the food coloring, it just stay there, exactly where we placed it.
Then, when we introduce the detergent to the equation, the colors blend in a sec. That’s because the detergent will make the surface tension to drop, and the "milk skin", that allows the color "to sit there", will disappear.
As we saw  here, this skin works as a coat that maintains other molecules at surface, and therefore preventing its dissolution n the milk. When his surface tension is disturbed, the food coloring (and other milk molecules) find less resistance and therefore they can move all around in the bowl.
But there is another phenomena happening in the bowl: Some milk protein denaturate by the action of detergent.
Both things contribute for the surface tension changes.

See the video:





Et voilá!
A ocean of colors!

Enjoy!
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