Translator: Vanessa Soneghet Reviewer: Maricene Crus
Good morning, my name's Guilherme Coube.
Today, I'll show you a project
which gave Paulo Nathan and I the third place at MOP,
as Mrs. Silmara has already said.
I bet it will make you all at least a little more sustainable
than before you came here today.
Nowadays, are we sustainable?
Unfortunately not.
According to WMO, the World Meteorological Organization,
2016 reached records in greenhouse gas emissions such as CO2.
If we don't do anything about it,
we'll pay a high price in the future.
Thus, my goal is to prove that it's possible
not only to have the right green attitudes,
but also to have ideas that can be put into practice and are eco-friendly.
So, why not join old and new together?
Why not join sustainability with technology and safety?
And, above all, why not innovate?
Why not perfect a project you like a lot?
In my case, I'm fascinated by bicycles,
so why not create an innovative bike?
That was my case.
The project basically consists of a bike made of bamboo -
so it's ecological -
with LEDs and dynamo - so it's technological too.
It's worth pointing out that the LEDs promote visibility,
so it's safer for bikers.
Now, here is some data about bamboo, which is the raw material for my project.
It is extremely sustainable and resistant.
It must be harvested in the waning moon - a very interesting fact -
when the gravity is higher
the water is in its roots and not in the trunk.
It must be boiled
so that its sugar content is crystallized,
giving it resistance in advance for the construction of the bicycle.
It must be varnished at the end of the process
to protect it from the weather.
I took a course in Porto Alegre
where I learned how to make bamboo bicycles.
Therefore, I can tell you how important the joints are.
The joints are also made of three sustainable materials:
two fibers - hemp and sisal,
and to bond them I used a plant resin which is a plant-based polyurethane,
which is really new and more sustainable than epoxy resins.
The joints also form the compound materials,
since we join "A" to "B" and produce "C",
which are the joints.
The characteristics of the compound materials
are their lightness and high resistance.
Here are some photos of the construction of the bicycle.
On the left, I'm sanding the bamboos.
On the right, I'm applying the resin.
On the left, I'm putting the bamboos on the template -
this process was done before making the bike.
On the right, the finished bike.
Well, now the LEDs.
There is a board to control the LEDs,
a programming board called "NodeMCU ESP8266."
So we created a code.
This board has a Wi-Fi shield that enables it -
when connected to its network -
to open a Web App, like an online app,
where you control the three LED functions:
blink, off or on.
As I said, this provides visibility,
which is the key word.
So, it's a very safe bike too.
Last but not least, is the dynamo,
whose aim is to transform the kinetic energy -
energy from the wheel movement - into electric energy.
We developed this dynamo and its goal is to charge a cell phone.
Imagine an adult going to work,
but they forgot to charge their phone.
There you go! With the bamboo bike you can charge your phone
on your way to work too,
and in a sustainable way as well.
Results have shown that it's possible to put old and new together,
as well as the sustainable and technological way of thinking.
If we all think that way,
we'll have a much better and sustainable world.
Thank you.
(Applause)