PORTFOLIO #18 WALLS

PORTFOLIO #18 WALLS

Sidewalls

Sidewalls is an Argentinian film that allows us to meditate on the fact that people who live in the large urban center feel miserable as they live in a constant rush; ignoring one each other ,inmersing in the technologies of nowadays and having the tendency to be insensitive and gloomy. In some cases this is true,people's expectations are somehow darkened by their experiences.Mariana and Martin, the main characters, are afraid of undergoing  friendships or relationships owing to their failure in love which made them lose their self-esteem and led them to the origin of their phobias. They exhibited guilt due to their couples had abandoned them, as a consequence Martin and Mariana developed an irrational fear (She was claustrophobic and he was a phobic of means of transport).
In my opinion, Sidewalls also reflects the negative aspects of dating;in fact, it is difficult to find a person with the same interests, way of thinking and dreams.The characters are frustated because of their sexual encounters , it will be assumed that they really crave a relationship, since the sense of loneliness and lack of love perpetuated their daily lives. Apart from this,both of them have something in common, they are dependant on their personal objects, it can be said that they make them their treasures ;even though they try to be in contact with strangers, they cannot afford it nor establishing a bond with people being happy neither.

TED has also included WALLS among its talks. Forget Wi-Fi , meet the new Li-Fi Internet by Harald Haas

Harald Haas demonstrates that it is possible to transmit a video from a standard off-the-shelf LED lamp to a solar cell with a laptop acting as a receiver, taking into account that there is no Wi-Fi involved, it is just light. Even though, there will be a massive extension of the Internet to close the digital device and also to allow for what we call "the Internet of things",leading to the connection of  tens of billions of devices to the Internet. Harald encourages the use of existing infrastructure like Li-fi or Light Fidelity to transmit data incredibly fast ;and also in a safe and secure manner due to this data is transported by the light and encoded in subtle changes of the brightness. There are so many LEDs around us , so there is a rich infrastructure of Li-Fi transmitters. Another way of using existing infrastructure to receive data from the Li-Fi lights are solar cells and solar panels. Solar cells absorb light and convert it into electrical energy, for that reason we can use a solar cell to charge our mobile phones.

Harald has discovered that fifty megabytes per second can be received from a standard off-the- shelf solar cell, and it is faster than most broadband connections in these days. In the video he explains and shows a lab demonstration of the process of using a new techonology, in that case he proves that the solar cell is able to decode and stream information. A solar cell has become a receiver for high-speed wireless signals encoded in light, while it maintains its primary function as an energy harvesting device, it could be said that it is possible to use existing solar cells on the roof of a hut to act as a broadband receiver from a laser station on a close by hill, or indeed, lamp post.

I am inclined to believe that this new technology will be useful in order to be aware of other types of receiving data information, We can access to Internet freely with something that it is everywhere and that is light spectrum.This methodology has been experimenting in order to decrease the potentially harmful electromagnetic pollution emitted by wireless internet routers, therefore we are protecting the environment and also access to Internet without paying, it can be said that Li-Fi will provide internet signals fast without interferences in a secure way.