contaminació
Nitrogen till the root
Nitrogen is an essential element for life, but since its availability is limited it must be recycled. The most important compartment on the planet where it accumulates is the atmosphere (N2). Hence, special bacteria introduce it into the biosphere through a process called fixation. Once there, it is transferred through the food chain from vegetables […]
Climate change, critical level
Global warming has not stopped since the industrial revolution and in the Quèquicom we are also witnesses. In 2006 we dedicated a report to climate change. In 2019, thirteen years later, we made an update. We will see how has evolved the CO2 in the atmosphere, the temperature of the sea in Estartit, the fish […]
The taste of water
We have all studied at school that water is colorless, odorless and tasteless. But in reality we all also have the experience that there are better waters than others. What determines the taste of water? To find out we will make a simple scientific study. We will sample waters from different origins and we will […]
Tractors, from the mule to the microchip
Since its inception agriculture had several technological revolutions, which have always gone in the direction of saving effort and increasing efficiency: animal traction, mechanization, precision and interconnection. Only robotics is lacking, and the farmer will not have to move a single finger to work in the field. The following spoke: Jordi Terrazas, Equibru, Joan and […]
Microplastic: from the clothes to the sea
For every 6 kg of polyester clothing in the laundry, we release about 4 g of plastic microfibers through the pipes, which will go to the sea and contaminate the waters, bottoms and trophic nets around the world. Participants: Àngels Rovira, Researcher in Advanced Materials, LEITAT, Anna Sánchez Vidal, GRC Geosciences Marinas, UB, Salvador Borrós, […]
Antennas, in neighbor’s backyard
It is recommended to turn off the wifi at night? And for what reason? Are its waves a danger to health? And the microwaves from mobile phone? What power density can we receive from a base station? And from our own phone? Are there leaking from microwave ovens? “Quèquicom” provides the basic knowledge to take […]
Eggs at lab
Eggs are a valuable food source. A fried egg, a Spanish omelette, cakes and sweets of all kinds, and even the eggs of sturgeon, the exquisite caviar, are different versions of eggs in a dish. But humans also know how to use eggs as privileged medium for research, they are like a miniature laboratory to […]
Spring in Barcelona
Spring is an explosion of life in the countryside. But under a watchful eye, is also an explosion of life in the city. The reporter Pere Renom walk in the city of Barcelona, racking and a spectacular spring. Explains the weather, vegetation and wildlife in urban spring. In the studio, presenter Jaume Vilalta shows how […]
The Ebro River: invaders and invaded
Although the Ebro is one of the best preserved large rivers in Europe, is also the scene of an environmental conflict between native and invasive species. To understand this conflict the reporter Pere Renom will practise kayaking on some of the wildest corners of the Ebro river. He will find naiades, a group of freshwater […]
