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/
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
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
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.
Liceo Artistico Treviso : category 16 years to 19 years : 1
Alberto Sartori
5fs
My
project is composed by three drawings which are realized on black
sheets 50x70 with a white pencil. These three sketches wants to
represent three of the most common ways with which the light can show
itself in the real life.
I
have chosen these three subjects because i want to let to the people
to understand that also the things which we hold simpler (the
reflection in the eye, the turned on light bulb and the drop) are in
reality complex works and at the same time beautiful.
PROGETTO
LUCE:
SCAGLIONE
FABRIZIO CL.5F
For
this project based on the concept of light, I decided to articulate
my work on “the light of the future”. That is what mankind is
starting to use more and more; by this I refer to the LED lights or
neon signs characterizing for example the major cities of the planet.
This
type of lights attract and impress in a very particular way, the
attention of the viewers.
With
the passing of the years it has come to produce not only the white
light but all of the various shades conceivable. Thewavelenghtof
the light emitted, and thus its colour, depends on theband
gapenergy
of the materials forming thep-n
junction.
Insiliconorgermaniumdiodes,
the electrons and holes usually recombine by anon-radiative
transition,
which produces no optical emission, because these arein
direct band gap
materials. The materials used for the LED have adirect
band gapwith
energies corresponding to near-infrared, visible, or near-ultraviolet
light.
Francesca Camussa
5^ F
Liceo Artistico
Statale Treviso
"THE KISS OF THE SUN"
I've always associated the Light with the sun.
Probably because the sun is the biggest light source and it is infinite,
differently from bulbs that always burnt.
I decided to use the photography to express this concept. I wanted to represent
the sun without being ordinary, so I decided to use a filter: I decided to
photograph them kissed by the sun. They are Beatrice and Sara. In the first
picture Beatrice is layied down on the garden and she is looking at the camera.
Beatrice's face is divided between shadow and light. Her blond hair suggesting
the sun's rays shine the picture as the sun do with objects.
In the same way, Beatrice and Sara are wearing a white shirt that symbolizes
the light and they are coming out from the dark.
Bianchin Giorgia
5^F
01/05/2015
Lights
and Shadows
This project of mine is
entitled: “Lights and Shdows”.
It is a photographic
portrait that I took with my camera (Canon 1200 EOS) with the idea of
freezing the effects of the light on a human body.
It representes a friend of
mine who gently offered her self to be photographed.
To take this photograph I
used a lamp as a big source of light because my intention was to make
the light the very protagonist of this shoot.
For the same reason I
choose a dark background to make sure we could identify better the
effects of the light.
I took this photograph in
order to capture the idea of light in contrast with darkness.
Moreover I chose this
black and white shoot because it best gives the idea of
contrapposition between these two tonalities.
The
source of ligh arrives from the right portion of the image and it
collides with the obscurity coming from the left portion and we can
notice a gradual passage in her hair and above her shoulder.
Our composition is ispired by the luminous wave which was discovered by dutch scentist
Christiaan
Huygens (1629-1695).
In the Christiaan Huygens' theories he described the light behavior as a wave.
The scientific community accepted this new undulatory theory only one century later and
the corpuscular theory of light was replaced by this innovative discovery.
In this project we printed a simple white paper in different positions to give the idea of
the undulatory movement.
The effect of light is finally given by the strong contrast between black and white, the
white of the paper and the black of the background.
By Anna Mattiuzzo & Chiara Peruch
Alberto
Favaro Liceo Artistico Statale Treviso 5F 2014-2015
THROUGH
Through
is
the name of my project. With this work i want to analize the light
from a concrete and an ideal point of view. This short magazine
describes the shades of the natural light in the photography
and
the contrast with the artificial light. This comparison is
describes also with the use of lyrics.
Milani
Giulia, Di Guardo Giorgia, Lazzari Caterina
The
LIGHT'
Materials:
Stack;
Kaleidoscope;
Shotting
video;
Photographs;
Our
project is based on the relation between a prism and a kaleidoscope,
these two objects together generate the eletromagnetic spectrum.
Through
the use of a stack as the light source, we observed and subsequently
described/depicted the play of light that were reflected on the
floor. Filming and photographs were made in a dark room, and some of
them were created through the use of a kaleidoscope.
In
addition, we made use of a background music. The musical
accompaniment chosen corresponds to the song 'Solstice' composed by
the Icelandic singer Bjork. The argumentative theme of the text is
the contrast between light and darkness in the world.
The
kaleidoscope is an optical instrument that uses mirrors and fragments
of colored glass or plastic, to create a plurality of symmetrical
structures.
The
simplest kaleiscope is basically formed by a cardboard tube entirely
covered by two mirrors at least in the front, separeted from the
central body by a round transparent glass, there are fragments
inserted inside with different shapes and colours. A frosted glass
closes the tube at the end.
The
prism is one of several polyhedra that can be classified. In solid
geometry, a prism is a polyhedron formed by two parallel polygons
that constitute the basis, and which has the side faces of
parallelograms.
Ilaria
Tonetto 5f liceo artistico statale Treviso
LIGHT
to create the work of this
project , I am based on the light within the lens . It intrigued me
in particular the effect of refraction . this characteristic leads to
seem that a given material changes its structure . in reality the
object is hit by light waves , which change their speed and direction
because cross two different densities . in the case of the work done
, the object is the spoon and the light passing through
Com’è il mondo alla luce delle lampade, ..
Per questo progetto ho deciso di parlare del tema dato tenendo conto dei lati più
umani e naturali che la parola “luce” può rappresentare.
Vari sono stati i ragionamenti sul significato del termine, spesso associato alla
ricerca della verità e quindi alla rivelazione di un mistero, al candore e alla felicità
di comprensione. Molti pensatori, poeti e artisti hanno lavorato e scritto
riguardante questo argomento e tutti in modo diverso inteso la luce come sinonimo
di bene e calore.
La decisione di sviluppare un lavoro caratterizzato da elementi letterali e non
specificamente in chiave della Fisica deriva da una più facile spontaneità del
sottoscritto nel produrre un lavoro con questi connotati.
Il lavoro è prettamente grafico, senza l’utilizzo di elementi plastici o multimediali :
si divide in due cartoncini di misure 50x70 cm di colore grigio nei quali ho inserito
in una composizione, 4 rettangoli di misure 12x19 cm nei quali sono intervenuto
con tecniche differenti. Esse sono il collage e l’utilizzo della grafite negli
inserimenti di tipo grafico e letterale. La chiave di lettura di tutto il lavoro sta nella
suddivisione in coppie degli inserimenti. E’ chiaro il parallelismo tra il significato
letterale della delle frasi inserite e le immagini scelte! L’intento era quello di
descrivere i vari significati umani che si possono dare a queste onde
elettromagnetiche e le sensazioni che possono trasmettere le parole legate alle foto
utilizzate. Inoltre ci tengo a sottolineare il fatto che le foto sono state scattate dal
sottoscritto e non scaricate da qualche browser.
Brief history of lighting
With this work,
I want to represent the major landmarks of the light which lighted
the days and the nights of the men from the prehistory to these days
and age. In this work I have represent both the natural elements (as
the sun, the lighting and the fire) , and the artificial elements
(from the oil-lamp to the light bulb).
The earliest
light source obtained by men was the fire, c.a. 50000 years ago.
Initially, the torches were obtained from conifer’s woods and
shrubs, and then they used wood covered by pitch and animal fat.
Then there was
the invention of the first oil-lamp, that is closed bowl made of
terracotta or of blown glass, equipped with an handle, a central hole
for the oil, and a spout from which came out the flame.
There
are proofs which demonstrate that the candle was already used by the
Etruscans and probably also by the ancient Egyptians. Initially, the
candles were made of animal fat mixed with straw and at a later
stage with beeswax. The first candle as we know it took light in
1818, when the French Braconneau
e Simonin invented the steric candle. Its completion needed 15 years
(the major problem was the wick) In
1783 the Swiss chemist François Ami Argand invented the oil lamp.
Few years later, this innovation, which permitted to benefit of a
more widespread of light than a candle, permitted the introduction of
the petroleum and, at a later stage, the kerosene.
In
the 1792 the Scottish engineer William Murdoch succeed in the
utilization of the natural gas for the industrial lighting. That was
the first stage for the global lighting.
In
the 1879 Edison invented the bulb lamp, inserting a charred cotton
thread (for the resistance) and two platinum thread (for the
conduction) in a glass ampoule.
Viscuso
Giada
5fs
Liceo
artistico treviso
I
have choosen to create a collage of photographs to enclose different
moments in a single image. In this way the impact of the content is
direct and immediate.
Every
photo shoot shows a drop of ink expanding in a glass with some water,
until the black ink occupates all the space.
The
reflection of the light fades with the advancing ink, and in the last
picture the light beam is almost completely disappeared.
The
intention is to capture the changing of time from the sunlight to the
darkness of the night , the natural rhythm of life.
Riccardo Pasqual
5f
RELAZIONE DEL PROGETTO SULLA LUCE
Titolo/Title: Revelations
Tecnica/technique:
fotomanipolazioni con inserti pittorici/ Acrylic and computer graphic
photomanipulation
Description: “Revelations” is a
triptych based on original photos and reworked thruough computer
graphic and small pictorial interventions with acrylic colours.
This work wants to exalt the importance
of light's presence in nature. That's the reason why the original
photos are just b/w. In my mind I pictured to underline the
importance of colured light by its absence. In the three photos,
Light just reflects and shines upon objects. The only exception is
the central frame that rappresent a lightswitch: in our modern and
civilezed communities we control Light with a simple botton(on or
off)... I actually want to remark the fact that Light is not
considered so natural any longer but rather a tool.
Then there is the point of colours.
We can't imagine colours without Light,
so i just wanted to identify the expressive value of illumination
with the use of colours, painted freely.
So, the three frames reveal my
suggestion of Light as great maker of colours, the main and most
important vehicle for visula art and not only...
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