Articles by Eduardo Souza

Being able to move around cities is a basic requirement for the development of most human activities. Yet daily trips between home and work, study, leisure, and other daily commitments are not always done under the most comfortable conditions, whether it be because of crowded public transportation or unexpected traffic jams. Urban mobility is a hotly debated topic, from informal conversation circles to technical and scientific seminars. It’s hard to find someone who doesn’t have an opinion on the subject or some miraculous solution to the problems in their city or region. In fact, we have already posted several articles addressing this issue on this site, from utopian proposals to questions related to the daily lives of most of the population.

Double skin façades. Almost a self-explanatory name for façade systems consisting of two layers, usually glass, wherein air flows through the intermediate cavity. This space (which can vary from 20 cm to a few meters) acts as insulation against extreme temperatures, winds, and sound, improving the building’s thermal efficiency for both high and low temperatures. Perhaps one of the most famous examples of double-skin facades is Foster+Partners’ 30 St Mary Ax Building, “The Gherkin.”

The airflow through the intermediate cavity can occur naturally or be mechanically driven, and the two glass layers may include sun protection devices.

It’s very likely that you are reading this text in an interior space with the lights on. For most people, modern living entails spending most of the day in closed rooms, bathed in a sum of artificial and natural lights. Yet while artificial light has afforded mankind incalculable possibilities, it has also caused some confusion in our bodies, which have evolved for thousands of years to respond to the stimuli of sunlight in the day and darkness at night. This responsiveness to natural light is called the circadian rhythm or cycle, and describes the 24-hour biological cycle of almost all living beings. Circadian rhythms are primarily influenced by light reception, but temperature and other stimuli also play a role in the process.

Food production is directly reliant on bees, and their disappearance could lead to catastrophic effects on humanity. There are alarming reports all over the internet about how these little insects are dying. According to the Food and Agriculture Organization of the United Nations (FAO), 75% of the world’s food crops rely on bees. For example, it is only possible to have a juicy and well-developed strawberry if dozens of bees go by the flower at the right time and pollinate it. Without them, it would look more like a raisin.

Facades are the interface between the interior and exterior of a building. They are the most striking and visible parts of a building, they protect it from external agents and are one of the main contributors to creating comfortable environments since it is where thermal gains and losses occur. Just like our skin, an extremely versatile organ of our body, it should be natural for it to be the part of the building which bears technology capable of becoming adaptable to the environmental conditions of the place where it is located.

Terrazzo is a mix of a concrete mixing base with natural stone fragments; it is characterized for being an extraordinarily resistant and versatile material. Since its frequent use some decades ago, this material has been rediscovered by architects and is used more and more often in works nowadays. Aside from the natural stones, this cement mixing base can include unused elements from construction – nails, bricks, and chunks of wood – resulting in very interesting final products.

The history of concrete dates back to ancient Rome, approximately 2,000 years ago. The so-called “Roman Concrete” is composed of limestone, volcanic ash, and seawater and it permitted the construction of aqueducts, highways, and temples; many of them still stand to this day. Some time ago, this original mix was discovered to form a mineral called aluminum tobermorite, which gets stronger as time goes by.

British company Kast has launched a new version of its traditional pigmented concrete sinks. Since concrete is an extremely versatile material, which combines the characteristics of natural stone with the ability to be molded in different forms, the products show carved surfaces with highly defined textures. The exploration of their linear patterns ranges from smooth horizontal ripples to diagonal folds or ‘sharp’ and vertical grooves. The organic variations in the colors and textures of the surfaces create a different aesthetic that comes directly from the character of the material.

The term “resilience” has been employed in a wide range of subjects. The scientific definition is the ability of a substance or object to recover its form after suffering some trauma. In other words, it is quite different from resistance, as it concerns the capability of adapting and recovering. In ecology, resilience is about the ability of an ecosystem to respond to a perturbation or disturbance, resisting damage and recovering quickly. In architecture, however, designing something while having resilience in mind can lead to a variety of approaches. Resilient designs are always site-specific. Predicting the potential scenarios for typical building use, and even any disasters that could challenge the integrity of the project and its occupants is an important starting point. Furthermore, it is possible to address adaptive structures and materials that can ”learn” from their environment and continuously reinvent themselves. Since there are software and robots with algorithms that learn from their contexts, why can’t we use the same approach in construction?

Since the 1970s, humanity’s resource consumption began to exceed what the planet could renew in a year. That is, we are withdrawing and polluting nature more than it can naturally recover. According to the World Bank, if the world’s population reaches even the projected number of 9.6 billion people by 2050, it will take almost three Earth planets to provide the natural resources needed to maintain humanity’s current lifestyle.