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, November 18, 2011

Can phone

Can phone is a project extremely rewarding, because it really works, its easy to do and its fun to do and play with.
The sound makes each can to vibrate and this vibration is transmitted along the string connecting the two cans.

What we need :

  • 2 clean and empty cans,
  • hammer,
  • nail,
  • +-20 m (+-21yd) of string.
How to:
  1. Clean the cans;
  2. Make sure the can has no sharp ends;
  3. Place the cans, upside down, on a hard surface;
  4. Punch the center of the cans with the nail;
  5. Pass the string through the hole of the first can;
  6. On the end of the string attach a paper clip;
  7. The other string end goes on the second can, using same method, when you finish you will have 20m of string attached to 2 cans, one on each end;
  8. Give your restless one of the cans;
  9. Walk away until the string is fully stretched;
  10. Ask your child to place his/her can on the ear;
  11. Talk to the can;
  12. Now it's your turn to listen.
When we talk the air vibrates, thats how the sound travel, the can also vibrate, those vibrations travel along the string to the second can, this causes the air in the second can to vibrate, producing sound.

Et Voilá,
Fun fun fun!


No comments:

Related Posts Plugin for WordPress, Blogger...