Tara: a turbine to remind the importance of research on the ocean

Faced with the difficulties it encounters to finance its scientific expeditions, the Tara Foundation has placed a turbine that generates electricity at the bottom of the water, off Brittany in the Morbihan, where the current is strong, explains Romain Troublé, director general of the Tara Expéditions Foundation in a video

A drop of water

The turbine powers a computer capable of securing transactions in bitcoin . Each recorded transaction generates money, reinvested in research on the ocean . " The environment represents less than 3% of donations made to charities ", says the private foundation that studies the impact of global warming on the ocean. She had the idea, with FF Creative Community Los Angeles, " to use the energy of the sea to raise money " with its installation "Ocean miner". In one month, the facility has raised 200 euros, " a drop of water in the ocean ," says the Foundation. " This installation will not under any circumstances cover the needs of scientific research ", explains Romain Troublé in a statement but that " can recall that only the mobilization of all will fund research to study, understand and better preserve the ocean tomorrow ". For 15 years, the foundation has sought to better understand the impact of climate change on the ocean and thus better preserve it.

His schooner has already traveled the Arctic to study the pack ice, sailing in all the seas of the globe discover plankton or crisscross the Mediterranean to measure the impact of plastic pollution. She is currently crossing the Pacific to study coral reefs threatened by climate change and human activities.

Make your wind turbine, water, drone: what you should not miss in the show of survivalism

Porte de la Villette, in Paris, was held from 23 to 25 March 2018, the very first exhibition of "survivalism". What is it about ? The organizers of the show define it as " a way of life based on the ability of an individual or entity to absorb shocks of any kind ". " Survivalism drives people to change their behavior and way of life with the primary objective of preparing for the onset of local, regional or global risk, and they are forced to invest in products and allowing one to prevent risks, and on the other hand to increase their self-sufficiency. "This show dedicated to this movement born in the United States (the organizers claim that there are 5 million survivalists on the American soil) was the first of its kind in France. There were vendors of hiking equipment, cutlers, distributors of heavy equipment (all-terrain vehicles, quads, motorhomes …), or sellers of greenhouses and manufacturers of hydroponics system. Here is a selection of the most interesting stands:

  • Make your own renewable energy devices

" The profile of the people who come to see us is very varied " says Thibaud Simon, co-manager of the center of CAP training (acronym for creators of positive autonomy). " We also have activists who no longer want to deal with EDF that owners of isolated homes who suffer from being off-grid, or people just want to reduce the bill related to their heating costs" . But all have in common the desire to be equipped with a local material able to provide energy to a home. The training center offers, with its Breton partner Aezeo, training sessions for individuals. These range from the energy diagnosis (to choose the right installation and size correctly according to its needs) to the manufacture of different equipment: boiler stove, solar thermal panel or water heater, and connect them correctly to their home installation. in compliance with current safety standards "specifies Thibaud Simon. At the end of their training, which gave them the necessary DIY skills (including plumbing and welding), the participants leave with the equipment they have built with their hands, and are able to install it at their home. home. This know-how allows them subsequently to ensure their own maintenance and upkeep. Since it can not be built (too complicated), the training center also offers workshops related to the installation of panels photovoltaic s.

In addition to using solar energy (photovoltaic panels or solar thermal) and wood (boiler stove …), it is also possible to equip a site of home-built wind turbines. This is what offers the company Valentinoise Ti'éole. The latter offers, on the same model, workshops to learn how to make small wind turbines with blades … wooden. The latter, whose profile is carefully worked, are bolted to a mobile structure. The model exhibited at the Salon of Survivalism used a car hub as the axis of rotation. The wind turbine, bolted to a metal mast, is extended by a saffron of wood and metal whose function is to keep it facing the wind. The electrical energy produced by the device is stored in a battery park.

Be aware that even if you make this equipment out of your hands, training and raw material have a price. Count 1.700 to 2.500 euros for a stove boiler (" the price of the material " explains Thibaud Simon). And for a wind turbine, it takes between 5,000 to 7,000 euros.

Imagine a small quadricopter able to fly even in case of heavy rains, and having the ability to evolve over a body of water without giving sweat cold to his pilot. And for good reason, the Diodon SP20 has the particularity of an inflatable chassis. Air under high pressure, retained by a very resistant fabric, gives the arms of drone a rigidity sufficient to ensure a stable flight. The interest of this flexible structure is multiple. It cash well shocks in case of hard landing: the arms fold but do not break (which is not necessarily the case of propellers). The machine can be easily placed on a rough surface without the risk of tipping over. But above all, she can stop on the surface of the water. Ideal to watch if zombies do not approach your cabin in the middle of the marsh.

Only downside: this device is intended primarily for the defense market, civil security or relief in the mountains, its price is prohibitive for the individual. Count more than 6,000 euros for a machine.

In conditions of survival, finding a source of drinking water is one of the priorities. However, as is often the case in natural disasters, access to a clean water source is often problematic. Fortunately, there are very effective portable filtration solutions that were demonstrated in the aisles of the show. The Aquapure stand offered visitors the opportunity to sample water drawn from an unhealthy pond.

This filter cartridge system is available as a "fixed" device (under a sink, in a water fountain …) or, more interestingly, nomadic version. A manual pump system then circulates the water through the cartridge into a gourd where it is stored, ready for consumption. Each cartridge can filter 900 liters of water before reaching saturation and require replacement. An ideal device, therefore, if you move in a hostile environment such as the jungle, where water, even unfit for consumption, is abundant.