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.

Tuesday, October 30, 2012

Halloween vs Day of all Saints

Halloween has its origins in Celtic culture.

2000 years ago, in the territory now called Ireland, Celts feasted Samhain, this festival happen on the 1th November. This festival marked the end of the year, the winter beginning and the last harvest.
At that time some people believe that in this date the souls had their last and final chance to return to the realm of the living

In this festival people gathered and lit fires and offer sacrifices to the deceased, believing this would stop them to return. Celts also dressed in clothes made from animal skins and offer food to the dead. As time passed by the festival changed and the people started dressing as ghosts, witches and other creatures known to be malevolent, and asking food and drinks. It is thought that this was the origin of the famous "trick-or-treat".

In the Catholic Church November 1st celebrates the day of "All Saints", in Mexico, for example, is celebrated as the day of "los Muertos" (Day of the Dead).

Samhain or All Saints Day?
People celebrate Samhain (Halloween) on the night of 31 October to 1 November, but using new and present rituals adapted to each country.
The All Saints Day comes as an attempt by the Catholic Church to annul the pagan festivals of the Celtic people. This attempt, despite being brilliant (according to some experts), has not had the desired impact, and the reunion of families around the table with the goal of honoring the Saints never managed to replace Samhain with the desired success.
Today we have a kind of fusion between the two parties- the Hallowe'en and All Hallows, or Halloween and All Saints Day (Hollow has its roots in the word sanctified or holy). The current version of Samhain on the evening of October 31 to November 1, and All Saints Day on November 1, are exactly the same, honoring the dead and settle down.
actividades de outono, Halloween, mitos,
sources:
http://www.history.com
http://ancienthistory.about.com

Et voilá!
Trick-or-treat?

Enjoy!

Tuesday, September 18, 2012

Bernoulli demonstration- Blow the ping pong ball

Use a hair dryer and a simple ping pong ball and you can make a simple but great Bernoulli Principle demonstration- check it out here.
Today we will see the same Bernoulli Principle working in a different way


What we need:
  • ping pong ball,
  • plastic soda bottle, funnel,
  • scissors.
How to:
  1. Cut the top of the bottle, the rounded section, just like shown in picture;
  2. Place the ping pong inside;
  3. Fill your lungs with air;
  4. Blow in the bottleneck, as many times as you want.
What happens?
Nothing! The ball stays in the plastic bottle section.

Why? 
The air you introduce in the plastic "cup" make its way leaning against the walls of the ball, as shown in the picture, causing it to rotate instead of rising.

Of course it is possible to make the ball "fly" but no lungs are able to do it.
See the video:



Et voilá!
Your Lungs can't do it!
Enjoy!

Wednesday, June 6, 2012

It's magic? No it's Science

With water, and a cardboard you can do a little magic with your restless.
This water is defying gravity.
Thats because the air in it can't escape to let in new air.


Et voilá!
It looks like magic, it sounds like magic, it tastes like magic, but it's science!
Enjoy!

Monday, May 7, 2012

Instant facts- Just add water 78

The Earth is 5th largest planet in our solar system.
in www.earthfacts.com

Friday, April 13, 2012

Cool Yogurts- Super Restless Mind

Marta Bolt in her blog "Caminhando juntos", shared with us a super restless idea: colorful yogurt. This yogurts  are really cool and easy to do, you just need a yogurt machine, and some smarties.

What we need:
  • smarties, or other similar chocolate,
  • usual ingredients to do normal yogurt (milk, natural yogurt... sugar),
  • yogurt machine.
How to:
  1. Preare the yogurt mix like usual;
  2. Choose your favorite smaties color;
  3. Add a few smarties, of that color, to your yogurt mix, before you turn the machine on;
  4. Turn on the machine normally and wait.
Marta says this is what it takes to get a cool and colorful yogurt
 
Et voilá!
multicolored yogurts!

Enjoy!

Instant facts- Just add water 77

Black coffee with no sugar contains no calories.
in http://gomestic.com

Thursday, April 12, 2012

Instant facts- Just add water 76

Catherine de Medici (1519-1589) is said to have taken the Italian peas "piselli novelli" to France (along with her chefs) when she married Henri II in 1533. This helped make petits pois a delicacy in France.
in peas.org
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