Two types of technology

Today I’ll talk about two technologies, one is the internet (and the computer of course). This a technology that I use frequently. The other, is a technology who, in my opinion, is very interesting, simple, useful and not expensive (almost free): the solar collectors.

I believe that Internet it is one of the most important technologies for some people in this time. Today it is very easy to access to it, at least in Chile, from libraries, universities, stations of meter, etc. The million of information that circulate in this virtual space have had a great impact in the societies. Well, you can use the internet not only to open your e-mail or to look for books; you can also use it too for see movies, or download a lot of music. It’s amazing that by means of the internet you can find people, play games or see movies. In internet, you can save many, hundred of files, documents, music, photos and they not use physic space, they are just in a virtual space intangible, but you can use them when you want.

I am going to talk about a type of technology that seems to me to be very interesting: the solar collectors. It serves to take the energy of the solar radiation, and transforming it into heat energy of temperature for domestic or commercial uses. It’s very economic and it can replace a calefont, considering that in our country around the 50% of the houses doesn’t have calefont. Well, this is free and clean energy! Can use it any person (there are no companies that have the rights of the sun). Another advantage is that is very easy have this technology. Only you have to learn to construct and to support it. In these days some students of geology of the University of Chile are teaching this.