Thursday, September 23

temperatura

aire acondicionado, cambio climatico, electricidad, Noticias, planeta, refrigeración, tecnología, temperatura, Tendencias

Technology allows to cool environments without electricity | Digital Trends Spanish

Our planet dries up quickly and the global temperature increases every year, a situation that has motivated the use of refrigeration systems in homes but which are not always the most respectful of the environment. That is why the innovative method developed by the company SkyCool Systems is striking, which consists of a new cooling technology that radiates heat through the atmosphere, reducing the temperature of the nearby air by about 12 degrees Celsius. Thus, this method of cooling does not use electricity, which is relevant, since it is estimated that about 7 percent of global greenhouse gas emissions are generated by refrigeration systems in homes and in transport. These radiant panels developed by SkyCool are capable of absorbing all the heat generated by the Sun and, instead of r...
calentamiento global, cambio climatico, informe, Naciones Unidas, nivel de los océanos, Noticias, ONU, planeta, temperatura, Tendencias, tierra

Climate change: the planet no longer has safe places | Digital Trends Spanish

The Intergovernmental Group of Experts on Climate Change (IPCC) presented its new report on the climate phenomenon and the results are worrying. According to the document of more than three thousand pages, considered the main scientific report on this material, the activity carried out by human beings has pushed the planet to its warmest period in the last two thousand years, which would cause irreversible effects for millennia. “The report is a reality bath. Now we have a much clearer vision of the past, present and future climate, something essential to understand where we are going, what we can do and how we should prepare, ”said Valérie Mason-Delmotte, co-chair of the group of experts that prepared the report. A more pessimistic view was held by her colleague Linda Mearns, a co-aut...
análisis, astrónomos, calentamiento, caliente, Espacio, estructuras, galaxias, investigacion, misiones, Noticias, planetas, temperatura, universo

The universe keeps getting hotter | Digital Trends Spanish

Research by the Ohio State University Center for Cosmology and Astroparticle Physics examined the thermal history of the universe and concluded that it is getting hotter and hotter. The work was published in the magazine Astrophysical JournaLy determined that the temperature of gas throughout the universe has increased more than ten times during the last ten billion years, reaching approximately 2.2 million degrees Celsius. “As the universe evolves, gravity pulls dark matter and gas into space to form galaxies and galaxy clusters. The drag is violent, so violent that more and more gas is discharged and heated, ”explains Yi-Kuan Chiang, lead author of the study. The researchers used a new method that allowed them to estimate the temperature of the gas farther from Earth. This mean...
aire acondicionado, calor, cambio climatico, colorante, Edificios, enfriar, frío, Noticias, pintura, refrescar, super blanca, temperatura, Tendencias, Universidad

This super white paint is able to cool everything down | Digital Trends Spanish

One of the most common ways to cool rooms and entire buildings is through air conditioning. It is the most comfortable and practical way, although not the healthiest for our planet. For this reason, a group of engineers from Purdue University in the United States has created a method of keeping different structures fresh in an easier and more sustainable way. It is a "super white" paint that can keep all surfaces cool, specifically down to -7.8 degrees Celsius, regardless of the high temperatures that may be outside. According to the authors, this type of dye can also reflect 95.5% of sunlight and efficiently radiates infrared heat. The good news is that this insulating effect would be done without consuming energy, which constitutes a real relief for the planet, even helping to sl...
calor, cobre, Contagio, coronavirus, diseño, infección, Mascarilla, mit, N95, Noticias, propagación, Salud, SARS-CoV-2, temperatura, virus

MIT Designs Mask That Inactivates Coronavirus With Heat | Digital Trends Spanish

The use of masks has been proven to be one of the most effective ways to avoid coronavirus infections. Aware of this, a group of researchers from the Massachusetts Institute of Technology (MIT) has designed a mask that inactivates the virus using heat. The researchers hope to develop this mask incorporating a heated copper mesh that runs on a battery and is surrounded by insulating neoprene. Thus, as the person wearing the mask breathes, the air flows through this mesh and the viral particles in the air are slowed down and inactivated due to this device and the high temperatures. MIT. This mask is expected to be of great use to healthcare professionals or the general public, especially when social distance cannot be respected. “This is a completely new mask concept in that it does ...
calor, clima, coronavirus, Covid 19, Factor climático, humedad, Noticias, Salud, temperatura, viento

This factor would be key to reducing the spread of COVID-19 | Digital Trends Spanish

We know that COVID-19 spreads through droplets of saliva that the infected patient expels when coughing or sneezing. Because of this, a group of scientists wanted to find out how these small particles behave under certain weather conditions. Thus, they proposed that the speed at which saliva droplets evaporate, determined by the temperature and relative humidity of the atmosphere, would be crucial for the rate of proliferation of COVID-19. The study was published in the journal Physics of Fluids. "We found that high temperatures and low relative humidity cause high evaporation rates from contaminated saliva droplets, significantly reducing the viability of the virus," says Talib Dbouk, one of the study authors in a release from the American Institute of Physics. In addi...
Antártica, gases de efecto invernadero, Noticias, temperatura, Tendencias

Why the Antarctic Atmosphere Is Cooling Faster | Digital Trends Spanish

The atmosphere over Antarctica, some 56 kilometers from Earth, is cooling ten times faster than the average warming of the planet's surface, due to greenhouse gases. Although these gases have caused drastic changes in temperature in the global, causing an increase in these and in water levels, they are also responsible for cooling the atmosphere, according to The Sciences Times. The results of the study of the Australian Government Antarctic Division showed that the mesosphere is extremely sensitive to increased greenhouse gases, providing an opportunity to determine the extent of government interventions to reduce carbon emissions. Air glow Unsplash Scientists at the Davis Research Station in Australia took more than 600,000 measurements of temperatures in the Antarcti...