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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.

Thursday, November 10, 2011

In a windy day, build a kite

The legend says that a chinese man, without any purpose in creating such an object, in a windy day; he must had failed because that’s the first reference to a kite. No one knows the exact date this episode occurs it happened about 2000 years ago.
To build one of these millenary toys it's a good way to enjoy a windy day. We found a lot of different ways to build a kite, this one seemed the cheaper, safer and easier.

What we need

  • trash bag, the biggest you can find, white ones work best to decorate, but the black ones are ok,
  • 2 wooden sticks, they should be thin and have about 20 and 23 in,
  • scissors,
  • exact-O knife,
  • string, with 0,05in diameter,
  • 1 small ring, 1/2 in diameter,
  • ruler,
  • tape,
  • Color markers, ribbons, and any other materials you wish to use.
How to:
  1. Open the plastic bag in order to get a plastic "sheet";
  2. Measure 1in in each of extremities of both wooden sticks;
  3. With the exact-O knife open a small cut, around the wooden sticks, on each one of the marks, those will be needed to place a piece of string;
  4. Measure 6in on the larger stick and 10 on the smaller;
  5. With the help of the adhesive tape attach both wooden sticks on those points, at the end you should have a structure in T;
  6. Place this T on top of the plastic sheet;
  7. With the marker and the ruler, draw 4 straight lines linking the 4 extremities of the wooden sticks;
  8. Now, get the scissors, and cut around the lines with a margin of 2in;
  9. Tie the string with a knot to the first cut on the wooden stick;
  10. Take the string to the second cut, repeat the action;
  11. Do the same to the 4 cuts, see figure;
  12. Place this T back on the plastic;
  13. Fold the 2in plastic margins to cover the string;
  14. Glue the plastic with the adhesive tape;
  15. The kite is ready; decorate it as you wish;
  16. Attach a ribbon to the larger end of the "t".
Placing the wire:
  1. Carefully make a small hole in each extremities of wooden sticks, about 1 1/2in from the end;
  2. Pass the wire through these holes and tie a knot, according to the figure, these knots must be strong and tight otherwise the kite can broke with the wind;
  3. Look to the image, attach the 4 wires at the center using the ring; 
  4. Wrap the remaining wire in a "reel", broom stick type, but smaller, about 8in wide;
  5. Tie the other end of the wire to the ring;
Et voilá!
Ready to fly! Watch out for electrical wires and trees.


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