~RADIO~

The first precedents of the radio are from the end of the XIX century, with the invention of the voltaic battery by Alessandro Volta. Since them, the first telegraph started to be built and they advanced thanks to Samuel Morse's invention: The Morse Code. 

In 1876 it was discovered that sound could be listened through a cable but it was at the end of the XX century when they achieved the transmission of human voice, causing a big change.

Marconi's knowledge let the signals to spread for 20 km, a big achievement for that period and for the evolution of the radio.

In Latin America the radio arrived on august 27th, in 1920 in Buenos Aires. The first transmission was a Richard Wagner's Opera. In Mexico it was in 1930 with the first commentator: Arturo de Córdoba.

Nowardays everybody can listen to the radio because it is much more accesible.


The actual radios are more moderns andhave more channels that sometimes have a spokeperson. The most famous channels now in Spain are:

1. Cadena 100














2. Los 40















3. Europa FM

~ELEVATOR PROJECT~

We have done an elevator at our technology class. We choose this project because our teacher said that it was a great idea. Here we are going to explain how to make it.

~MATERIALS~


Shaft of the elevator:
-Plywood (30cm) x3
-Base of plywood
-Sprays (grey and black)

 Box of the elevator:
-Plywood x5 (x2 of 10cm and x3 15cm)
-Thread of fishing

 Mechanism:
-Nail
-Silicone
-Three circles of plywood (2 big and one small)
-Motor
-Gears
-Switch





~HOW TO MAKE THE SHAFT OF THE ELEVATOR~

We pin with nails the three plywood between them and after we pin the box on the base and we paint it with some sprays.

~HOW TO MAKE THE BOX OF THE ELEVATOR~

Like the shaft of the elevator we pin  the five plwood between them. Also we paint it and we make a hole in the top of the box.

~MECHANIMS~

After do the hole on the top of the box we bring in the thread of fishing and we seal it. Also with the circle of plywood we make a pulley and we put them on the top of the shaft.
For what the elevator move up and down we have to do a circuit. We take the battery and conect to a motor by two switch.

HOW DOES IT WORK?

To work we had to place two wires that went through a switch but we had a problem, couldn't go down and up in the same way so, to go up we had to connect a wire to the positive and another to the negative, obviusly, and to go down ou have to put them backwards, as in the example.

~LIGHTHOUSE PROJECT~

In our technology class we have done a lighthouse. Here I'm going to explain all the things we did.

INTRODUCTION:

~THINGS YOU NEED TO MAKE IT~
-a plastic bottle
-small light
-wire
-battery
-colour cardboard
-wood base
-insulating tape
-switch




























~ WHAT ARE IT DIMENSIONS?~
It isn't very big, the base is about 15x20cm approximated

~WHAT IS IT FUNCTION?~
The function is light, you can use it like a lamp
















TECHNICAL ANALYSIS:

~HOW MUCH IS THIS PRODUCT SOLD?~
 To make it you haven´t got to spend much money

~HOW MUCH DOES IT COST IN THE SHOPS?~
You can´t buy it on shops, but you can make it on your house with cheaper materials




SOCIO-ECONOMIC ANALYSIS:

~ANALYSIS OF FORM~
 -What are it exterior measurements?
Base: 33x26cm
Lighthouse: 18cm of height
-What shape is it?
The light house is cylindrical, and the electric power  is cube-shaped

~ANALYSIS OF FUNCTION~
A lighthouse is used as a reference and coastal warning for sailers. They are crowded by a powerful lamp that serves as a guide.

-How does it work?
It has a battery connected by wires that transmit energy to a light. You can turn on or turn off the light with a switch. Is similar to a lamp.

-Problems
If you don´t connect correctly the wires, the light will not light

ELEMENTS
-light bulb: emits light
-battery: emits energy
-wires: transmit energy
-switch: turn off or turn on the light


 

~21 BUTTONS~

21 buttons helps you keep track of what your favorite profiles are wearing, share your looks, store and match garments easily.

Once the app is installed on your mobile, you can follow your friends and influencers and find out what they are wearing at any moment. By clicking on a particular garment you can access detailed information about it, including the branch, model, price or colors in which it is available.

You can earn money by sharing photos and tagging all the clothes and brands you want.

The 21 Buttons app is free and available for iOS and Android devices.

~LINKEDIN~

Linkedin is a social network focused on business and employment. Each person describes their work experiences, the web puts millions of companies in contact to try to get you hired. It was founded in December 2002 by Reid Hoffman, Allen Blue, Konstantin Guericke, Eric Ly and Jean-Luc Vaillant, it was released in May 2003. The owner is Microsoft.

 ~Characteristics~
-Users can upload their own photos and view photos of others to help identify them.
-Users can follow different companies and can receive notification about possible mergers and offers available.
-Users can save jobs they would like to request.
-Users can see which and how many users have viewed your profile.

~YOUTUBE~

YouTube is an American video-sharing website. The service was created by three people: Chad Hurley, Steve Chen and Javed Karim in February 2005. In November 2006, it was bought by Google. The site allows users to upload, view, rate, share add to favourites, report and comment on videos.


Founded: February 14, 2005, San Mateo, California, United States
Executive Director: Susan Wojcicki
Date of Purchase: November 13, 2006
Headquarters: San Bruno, California, United States
Owners: Alphabet Inc.

The YouTubers:
Are people that get money doing videos of videogames, fashion, funny things, daily blogs... If there videos are very good they have more suscribers and more viewers on there videos and they can become famous.

Ranking of the most popular Youtubers:

 1. PewDiePie: with only 27 years, the Swedish Felix Kjellberg generates 12 million dollars a year. Considered the most influential gamer in the world his videos are followed by 50 million subscribers.

2. elrubiusOMG: he is the leader of the list of the most followed youtubers of Spain , he is a boy of 26 years who has achieved fame thanks to upload videos of gameplays and their games to video games as well as League of legends The Minecraft. It also makes comedy montages and counts already with more than 22 million subscribers.

3. Wismichu: He is 23 years old. The specialty of this youtuber are black humor videos. As he himself argues in his description of Youtube: They say that I am a troll but I just try to laugh at life. He has 5 million subscribers.

4. HappySunnyFlowers:  She was a shop assistant in a clothing store in the USA. He opened the channel in 2012 because he wanted to find people to speak with in Spanish. She has 26 years old. She makes videos about fashion.

5. Teresa Macetas: She is 19 years old. The specialty of this youtuber is fashion. She is famous because she is very natural and transparent.

6. Dulceida: She is 27 years old. The specialty of this youtuber is fashion. She is in a programme of Spain called " Quiero Ser".

~HABBO~

Habbo (aka habbo hotel) is a social networking service and online comunity aimed at teenagers. There are rooms of chat with forms of rooms of a hotel. The register in Habbo it's free, but being VIP you have to pay and you can have "Habbo Credits". It's the coin inside Habbo.

Habbo was created in the year 2000, the game is in 31 countries and the app is available in 21 languages. The 80% of the users are between 13 and 18 years old.

Interface:
Habbo has:

 -Instant messages.
 -Friend list.
 -URL bar.
 -Catalogue or shop.
 -Club architect.
 -Inventory.
 -Help.
 -Room informations.
 -Sandwich dialogues.