LAST POST

Hi everybody,

Today I will do the last post of these year that will be about the energy.

 There are different ways to produce electrical energy,but the main ways are:


- Steam: A steam power plant or generator produces electricity by burning fuels, including biomass, coal or petroleum.


- Water: It is generated from water that is called hydroelectricity. Falling water rotate the blades of a hydroelectric turbine, which in turn moves the copper armature inside the electric generator to produce electricity.


- Wind: A wind power plant rotates the blades of a turbine. which move the copper armature to generate electricity.

 There are som innovations to save the energy such as light bulbs that need less enery, new ways to produce renewble energy.

Different ways to save energy at home:

• Change light bulbs.
• Conserve water.
• Make windows more efficient. 

To save the electricity we have proposed as a workshop task to make a solar over in order to cook things using the energy that it is provided by the sunlight.I go with Aina Monroig ans Tomeu Carrió, we do the solar oven made with wood.


This course have been my 2nd year of technology, and I have liked a lot and I have enjoyed so much, what I liked more is go to the workshop because I like a lot to use the machines. The program that I have enjoyed a lot with the computers have been the kahoot and the powtoon 

TRY ENGINEERING

Hi,
Today I will talk about the activitie that we did in the workshop with two studens that came from the universitiy. We make a windmill with 50 min and we work like an enginer, that anenginer is a person trained and skilled in the design, construction, and use of engines or machines. I have pass a funny momento with my team and all the members of the team work hard to make the wind mill and we divided the work in two grups into the sambe one. One grup make the structure and the other grup make the blade of the mill, but was a Little bit dificult to subject all the blades with aluminium paper.
We doesn't achieved the goal because our wind mill doesn't turn around because we make the blades wrong and the structure was a Little bit a disaster and could be more improved.

We have worked more or less like an enginer in one hand yes because we make the wind mill and we try that the wind mill turn around, and for the other hand no because we did bad the wind mill.

I liked a lot this activitie that they prepare for us, and I have enjoyit a lot and we work like an enginer, well, we tried, but it was a very good activitie for us.                                                       

plastics

In the oceans there are a lot of huge problems for the plastics.Every year they collect 150 tons of plastics and the causers of this problems are the humans.
This situaton hams to us because:
-Fish are contamined by the plastics that humans throw
-Humans fish the contamined fish and then they eat





















Boyan Slat
Boyan Slat born 27 July in 1994 is a Dutch inventor and entrepreneur who creates technologies to solve societal problems.He is the founder and CEO of The Oceans Cleanup, which develops advanced technologies to rid world's oceans of plastic.He designed a passive system for concentrating and catching plastic debris driven by ocean currents.This won a prize for Best Technical Design at Delft University of Technology and he has established a fundation "The Ocean Cleanup" to further develop and eventually implement the technology.

LEARNING ABOUT FTALATES

Hi,
Today I will talk about what we haver learning in technology class about ftalates.

Ftalates are additives used in every day plasticproducts to increas durability, transparency and flexibility. Everywhere, we can find it inplastics bags, in the water and in the things that we can imagine.Also,our skin absorb it. But they are very dangerous because contaminating our planet and also our bodies. We absorbalot of ftalates because we can find them everywhere, also we can absorb it by our skin.
There are two young scientists trying to explain howaccidents have arrived to discoveries and to give another idea to don't produce more ftalates. I think that her work and their archievements are very good, I like it a lot these video and I think that it's also very interesant. I like the job they have done and we have know about it.
In my opinion I think that this it isn't a bad thing in this case.Without the descovery of Alexander Fleming, a biologist, nowadays we couldn't fight with many bacterial infections if this accident would not happen

SIMPLE MACHINES AND MECHANISMS

Hello,

Today I will talk about  simple machines and mechanisms, that we have work in this unit.

What are simple machines? make work easier for us by allowing us to push or pull over increased distances.

There are 6 types of simple machines:

1: The inclined plane: A flat surface or plane that is slanted, or inclined, so it can help move objects across distance. A common inclined plane is a ramp.

2:Lever: A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads.

3: Screw: A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.

4: Pulley: A pulley is a simple machine that  uses grooved wheels and a rope to raise, lower or move a load.

5: Wheel and axle: A Wheel with an axle through its center lifts or moves loads.

6: Wedge: A wedge is an object with at least one slanting side ending in a Sharp edge, which cuts material apart.

 

In our daily life we use a lot of simple machines such as the wheels cars, a knife, a door handles etc.       

TRANSMITION OF MOVEMENT

 Rotary motion is turning round in a circle, such as a wheel turning.

Linear motion is moving in a straight line, such as on a paper trimmer.

Reciprocating motion is moving backwards and forwards in a straight line, as in cutting with a saw.

Oscillating motion is swinging from side to side, like a pendulum in a clock.

  MINDOMO de simple machines

We also have study the mechanisms

What are mechanisms? Mechanisms are objects that make it easier for people to do work.

Mechanisms are formed by:

-Cams: Is a rotation or sliding pice as an eccentric wheel or a cylinder with an irregular shape, in a mechanical linkage used especially in transforming rotary motion into linear motion or in the opposite side.

There are differents types of cams:

Circular cam

Pear cam

Snail cam

Four-lobed cam.

-Gears: Is the part of an engine that chanes enginepower into moviment.

 

-Pulleys:Wheel on an axle of shaft that is designed to support movement and change of direction of a rope or belt along its circumference.

In our daily life we use mechanisms such as bikes, motors etc.

https://www.mindomo.com/mindmap/mechanisms-b3a6324dbf754306845bc6c2b9d3924f