Project

Presentation of the project:

The main objective is to share a scientific experiment on the same theme: light.

Each team offers an experience that is observed by others, explained in each class, and sometimes testing by the other teams.

25 classes, 18 differents countries participated in this project, to celebrate the International Year of the light.

1000 Students from 5 to 19 years and have exchanged their scientific experiments.

Christophe Galfard, writer and astrophysicist, was our mentor and presented an award

Awards

Congratulations to all teams for participating!
Here are the winners of this great project.
Each winning team will receive the new book by Christophe Galfard.

Do not hesitate to add comment on this project !!



5 years 11 years: The prize is awarded to

The school  "El Sol i la Lluna", Spain


http://elsolilallunapile1415.blogspot.com.es/

    PRESENTATION FROM BARCELONA

                                           

12 years 15 years: The prize is awarded to

4th Junior High school in Petroupoli. Greece

From the shadow of a stick to the ....circumference of earth

Repetition of Eratosthenes Experiment

On the 20th of March 2015, the closest to the vernal equinox date, our school had calculated the circumference of Earth. What we had done is use a cylinder of a map case (we call this a “gnomon”), measure its length, hold it vertical to the ground and measure its shadow at solar noontime, when the shadow is the shortest. Then we calculated the angle that sunrays hit the ground.

 Other schools that date, had the same procedure of measurements, too. We exchanged data with those schools and using in a method of three the difference of the angles of the sunrays to the ground, we calculated the circumference of earth.

We did this, because of the participation of our school in etwinning project Eratosthenes 2015, an ongoing etwinning project that celebrates its ten years of life.

On March the 20th, 16 schools of this project had also measured their gnomons and shadows.	Matching our data with theirs, the most accurate calculation for our school, came from matching those of the French college Antonin Perbosc in Lafrancaice, France.

 The circumference of earth calculated as 39954 Km.

This is a repetition of Eratosthenes experiment, which originally took place 2200 years ago. Watching this video you'll get a description of it (click on the following picture):	And more vividly and precisely the mathematician’s part is explained in this one (click on the following picture):

 You can also repeat this experiment!

We are looking forward to exchange measurements with you!

16 years 19 years: The prize is awarded to

The school Francisco Fernandes Lopes, Olhao,  Portugal

Flash Info

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Opinions on the project .

International year of light is our first etwinning project...this is the first year we participate in etwinning and IYL was the first project we were applied and accepted.
But that is not the only reason we will always remember this project. We enjoyed our participation because we could see all various approaches of light our partners had offered us: light in physics, in chemistry, in technology, in art...light and life.
We had  long discussions in classroom of the materials we obtained from the project's twinspace and we much appreciated the opportunity to familiarize the concept of light before we get involved with that in our curriculum...it is our last experiment in our curriculum for A grade Physics and that is the reason we posted our light experiment just on time before the project is closed...
We also appreciate the freedom we have to create our material in the way we wished...a freestyle approach  without pressure...
Thank you all from the bottom of our heart for the collaboration, sharing and acceptance
Thank you for lighting up our days
Wish you all the bests
A grade pupils in 4th Junior High School in Petroupoli

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An interesting experience, an open invitation for each partner to approach the main concept on his own....illuminating this variety of aspects that light has in different counties' school curriculums proves that the central idea of the project was brilliant. I feel very pleased of having participated in. Merci.

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The theme is wonderful, it has been a little difficult to develope it in our course

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It is a project with so many participants, ideas and good experсеnce! It`s great to be a part of it!

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It was enlightening!!!