This iron fish is an invention of the Canadian doctor Christopher Charles, its virtue lies in the fact that it could make iron deficiency in the world a thing of the past.
Bike-Blender, Bike-Mill, Bike-Pump.
Using used bicycle parts to build Bi-Machines. With pedaling we get the energy needed to pump water, shelling corn or running a blender. Photo: Maya Pedal.
Prosthesis to regain mobility. It is a prosthesis designed by engineering students at Stanford University to be much more durable than conventional ones. Its cost of 20 dollars (about 260 pesos) is accessible for low-income people. This invention allows them to kneel, stoop and continue their work. At the moment, this invention is being tested in India, Indonesia and Guatemala.
Designed by UNICEF Uganda, it is a platform made with two recycled metal drums welded together. It consists of two laptops, waterproof keyboards and solar panels. It does not need electricity to operate and contains information on health, education, job training …, it has an Internet connection. Photo: Engineering for Change.
He devised a lamp in 2002 with a plastic bottle, water, and chlorine, which works by refraction of sunlight. The intensity of the Moser Lamp is approximately 60 watts and does not emit CO2. They are easy to build and install. It was created by the constant blackouts in Brazil and it lights up many homes in the world for free.
Zeer Pot Fridge.
Refrigerator without electricity. It consists of placing a pot inside a larger one and filling the space between them with wet sand and covering the top of them with a damp cloth. When the water evaporates, heat is drawn from the inner pot, which helps maintain its internal temperature. Image: Julie Brown / Practical Action.
Architecture with a social sense.
There is a global movement of architects working to improve the world. An example is MASS (Model of Architecture at the Service of Society), an organization made up of Harvard architects. They built the hospital in Butaro, Rwanda, with specialists in infectious diseases. They found new and inexpensive ways to reduce disease, such as the transmission of the tuberculosis virus. They began by placing the hospital in a windy area, using it to generate energy, and they built windows proportional to the size of each room. They also changed the arrangement of the beds. They used local materials in the design of the hospital. The hospital was inaugurated in 2011 and in its first year it received 21,000 patients. Currently, 270 Rwandans from the region work.
Ingenious ball created by Jessica Matthews and Julia Silverman, two Harvard graduates. They thought that since soccer is the most practiced sport on the planet, they could install energy accumulators inside a ball so that it can be recharged with kicks and be able to take advantage of that energy later. So they invented the socket, a ball that, playing with it for 15 minutes, is capable of accumulating energy inside to plug in an LED lamp and generate hours of light, vital in areas of the planet where entire families do not yet have access to it. 25% of the world’s children still do not have access to light. Image: unchartedplay.com.
The idea is for the small drops of the mist to adhere to the threads of the meshes and then redirect them and accumulate them in tanks.
Bamboo pedal pump.
Designed by Norwegian engineer Gunnar Barnes, it uses the weight and strength of a person to draw water up to 7m deep. The device consists of two cylinders each containing a piston and a valve. As you move the pedals, the pistons move, causing the water to rise.
RUFT. (Ready to use Therapeutic Food).
Food preparation against child malnutrition. Devised by Mark Manary of the University of Washington School of Medicine. It is presented in doses of 100 grams, in vacuum-packed sachets and with a minimum caloric intake of 500 Kcal. Image: unicef.org.il.
MOM, low cost inflatable incubator.
It costs up to 90% less than conventional incubators. 75% of deaths from premature birth could be prevented if treatments were more affordable. MOM works the same as a conventional incubator but its cost is much lower; it costs only 300 euros.
3D printing of organs.
The life of a seriously ill girl was saved thanks to a replica of her heart made with a 3D printer. In the future this technique could be applied to save the lives of millions of people.
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