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"The Fairphone is a modular handset designed with repairability and ethical sourcing of its materials as headline features. It sold 60,000 units. Amazingly, for what sounds like a nerd-phone, almost half of those buyers had never owned a smartphone before. Now the Fairphone 2 is launching, and with a totally-new, in-house design. The new phone is even easier to repair, and because it was wholly designed by the FairPhone team, its supply chain is even more responsible than ever. The Fairphone is thicker than the latest iPhone or Samsung flagship, but that's the point. Instead of packing everything into a tiny case and keeping it there with glue, the Fairphone is designed to be taken apart. The lightweight magnesium frame supports modules that can be easily replaced by the user. "We have designed it with an aim to last three to five years, looking at making it robust and modular-for repairability," says Fairphone's chief communications officer, Tessa Wernink. "Obviously how long it lasts depends quite heavily on the user, so what we as a company are doing is offering an ecosystem around the phone that supports long-lasting use, first-hand or second-hand." Inside the case (itself one of several options) you'll find the core unit, containing all the chips and radios; a replaceable battery pack; a display that can be snapped off and replaced without any tools (not even a screwdriver); a receiver unit, which contains the front camera, sensors; the headset connector and microphones; a speaker/vibrator unit; and a camera module. These modules are designed to balance manufacturing complexity with repairability. For instance, the display comes as a standalone unit, but less-vulnerable components are bundled into one module. The camera, which people are most likely to upgrade as better versions become available, is also housed in its own module. That way you don't need to toss out your whole phone just to get a better camera. "In fact, the motto from the maker mo

Primitive technology is a hobby where you make things in the wild completely from scratch using no modern tools or materials. This is the strict rule. If you want a fire- use fire sticks, an axe- pick up a stone and shape it, a hut- build one from trees, mud, rocks etc. The challenge is seeing how far you can go without modern technology. If this hobby interests you then this blog might be what you are looking for. Also It should be noted that I don't live in the wild but just practice this as a hobby. I live in a modern house and eat modern food. I just like to see how people in ancient times built and made things. It is a good hobby that keeps you fit and doesn't cost anything apart from time and effort.

"To mark last month's World Teachers' Day (sponsored by UNESCO , the United Nations Educational, Scientific and Cultural Organization), photographers from Reuters took pictures around the world of educators with their students in a telling exhibit of the very different circumstances under which children attend school. Here are 15 pictures taken by Reuters photographers, revealing the spectrum of "classrooms" - from those with literally no resources to those well-stocked and housed."

"Contents:Notebook of Leonardo da Vinci ('The Codex Arundel'). A collection of papers written in Italian by Leonardo da Vinci (b. 1452, d. 1519), in his characteristic left-handed mirror-writing (reading from right to left), including diagrams, drawings and brief texts, covering a broad range of topics in science and art, as well as personal notes. The core of the notebook is a collection of materials that Leonardo describes as 'a collection without order, drawn from many papers, which I have copied here, hoping to arrange them later each in its place according to the subjects of which they treat' (f. 1r), a collection he began in the house of Piero di Braccio Martelli in Florence, in 1508. To this notebook has subsequently been added a number of other loose papers containing writing and diagrams produced by Leonardo throughout his career. Decoration: Numerous diagrams. "

"In this Instructable, I'm going to be showing you how to build your own crack the code game in which you use a rotary encoder dial to guess the randomly generated code to the safe. There are 8 LEDs on the front of the safe to tell you how many of the digits you've guessed are correct and how many are in the right place as well. The safe is initially open, allowing you to put something into the inside compartment. The Arduino and battery are housed in a separate compartment in the back. You then push the dial to lock the safe, which is done using a servo on the inside of the door. You then need to input the code by turning the dial to select the digits and pushing the dial to confirm each digit. After your fourth digit is chosen, the safe displays how many of your digits are correct and how many of them are in the correct place using the red and green LEDs on the door. "

"Los diseñadores en del estudio i-beam Design crearon el proyecto de casa con palets inspirados en un hecho simple pero increíble: el 84% de los refugiados del mundo podrían tener una pequeña casa como la que ellos han diseñado con los palets que se desechan solo en Estados Unidos. Así 33 millones los refugiados podían vivir en una casa hecha por ellos mismos. Eso son un montón de viviendas para un montón de gente con grandes necesidades. Lo que hace que su diseño sea tan brillante es que prácticamente cualquier persona puede construirse una de forma muy barata y en menos de un día. Incluso podrías reservar 10 palets para hacerle una piscina."

"Los diseñadores en del estudio i-beam Design crearon el proyecto de casa con palets inspirados en un hecho simple pero increíble: el 84% de los refugiados del mundo podrían tener una pequeña casa como la que ellos han diseñado con los palets que se desechan solo en Estados Unidos. Así 33 millones los refugiados podían vivir en una casa hecha por ellos mismos. Eso son un montón de viviendas para un montón de gente con grandes necesidades. Lo que hace que su diseño sea tan brillante es que prácticamente cualquier persona puede construirse una de forma muy barata y en menos de un día. Incluso podrías reservar 10 palets para hacerle una piscina."