Pinhole camera

What is a Pinhole Camera?

This is a very simple camera that captures black and white images. We used a box with one side that is pierced by a small hole letting in light. Putting photo paper on the surface opposite the hole, an image can be captured.
In air, the light rays reflect from an object moving in a straight line and enter through the hole in the box before reaching the paper layer, which will capture the image of the object. In the pinhole camera, light rays from the top and bottom of the object cross and the image of the object is then thrown on the layer. The operation of this device is similar, on principle, to that of the eye. When we look at an object, it reflects light rays which enter the eye through a hole (the pupil), and reverses image forms on a screen (the retina).

                                                     The first pinhole in the world 

 

 

Turn your smartphone into a digital microscope

how do you turn your smartphone into a digital microscope?

For this project we decided to build a home made microscope with a plank of wood, and plank of plexiglass, screws and the most important thing: the lens!!

 Our lens was found in a computer's CD player.
We have already determined the focal distance of our lens and it brings us beautiful results like this:

our lens can zoom 40 times.

 We have seen how to make this homemade microscope on youtube at this adress:

Wolf to Whales ?

Wolf to Whales ?

During the week of Sea Ambassadors Mr. SOULIER become to talking about the evolution of whales. We learning to the wolf is the whales ancestor and the whales to the species of cetaceans.

 

  representation of a Mesonyx ( The wolf)

 

 representation of a Protocetus ( The whales)

The species has left the terrestrial environment to return to the aquatic environment.

Finally we learning how to study the whales today :

 -The Method of marking / tagging of cetaceans


-The Genetic typing

-The Marking capture, which allows among others to estimate the population of the species.

Diving is important to recognize a species. The species can dive as deep as possible is the :

 

Now we estimated that about had ten of thousands of species to survive without protection.  Fortunately today with the standards ,it can make with a few thousand species.The hunting of whales is banned today for all species.We hope to keep this diversity for many years , and maybe learn to see how they evolve !

Surf rider foundation.

Tuesday afternoon, from 3.30 to 5 p.m. We went there by ourselfs, it is located next to the gare of biarritz, it is a big blue building.

Surfrider foundation was created in 1990 by surfers in biarritz

They told us about pollution of the ocean and the possible risks that could effect us if we keep on polluing as much as we are right now. They told us that they defend the see by action like cleaning the beatch. They also try to convince the smallest that they are the one who can change the world. 

We can do some benevolat over there.

Sea museum

The sea museum

The seal's aquarium

Last week, on Thusday , we went at the sea museum of Biarritz. We had a conference about species we don't have the occasion to see. This museum has a lot of expositions and different species. A seal's aquarium is on the roof and the visitor can see their lunch. We saw an exposition of abyss giants species like big squid or goblin shark. We met a doctor in Bio marine who work in IFREMER  have talked about Gascogne Gulf species.

Paul Beucler / Charles Maze

ocean city

The friday 5th of december we went to the ocean city.
Here we met a  woman called Peggy Bergeron, who talked about the byss, the differents species in this, the IMMENSITY  of this place, the number species uncovered and there strange particularity and all the risks that they can incur.

After this she let us gone, and visit Ocean city. In this one, there is a lot of differents acitivities and cultural thinks. But when we gone, they were itinerant exposition who talked about the abyss  too.

Sunscreens, makeup, shampoo... the skin absorbs 60%! And women have 515 chemicals products on the skin each day! Moreover many cosmetics damage the corals and even the ocean in general.
What solutions can exist?

EQ company has developed natural products such as apricot kernel oil, they don't take bad substances for humans and the environment.
Official website: http://www.eq-love.fr/ 

We going to give you some tips about cosmetics :
     For protect your skin and the planet, take products with the logo "BIO". Use products with a latin name in the ingredients because it's natural.
     You shouldn't use cosmetics with this ingredients: petrolatom, paraffinum, -one word (dimethicone), -ane words, PEG, PPG, BHT, BHA, paraben.  

    If an ingredient starts with Ci ...., it's a unsafe ingredient but if an ingredient starts with Ci 77 ..., it's natural and with any dangers.

 

A exemple of naturals cosmetics : sunscreens by EQ (EVOA is the name of organic product line)

Eva Hirigoyen, Joëlle Balmès