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Aug 17, 2022

Is propane a solution for more sustainable air conditioning?

Posted by in categories: climatology, space, sustainability

Current severe heatwaves that will likely increase in severity and frequency in the future are driving a rise in the use of air conditioners, threatening the environment with their high energy consumption and refrigerants with high warming potential. A new study finds that switching to propane as a refrigerant could lessen the global temperature increase from space cooling.

We spend enormous amounts of energy on fighting off the heat in the summer, or throughout the whole year at lower latitudes—about one-tenth of the total worldwide electricity supply. If current temperature trends continue, the energy demands of space-coolers will more than triple by 2050. Apart from the rise in , space-coolers also threaten the in different ways: by using halogenated refrigerants with high potential.

Split-air conditioners (Split ACs) that use an indoor and an outdoor air unit connected by pipes are the most common appliances used for space-cooling. They mostly utilize HCFC-22 and HFC-410 as refrigerants, both of them characterized by a very high global warming potential score, up to 2,256—meaning that they trap up to 2,256 times more heat than over 100 years. Urged by the Kigali Amendment to the Montreal Protocol, many manufacturers are looking for alternative refrigerants with lower global warming potential scores, such as HFC-32. However, with a global warming potential score of 771, HFC-32 still poses a significant climate hazard.

Aug 17, 2022

Will AI achieve consciousness?

Posted by in categories: law, robotics/AI

Our podcast on science and technology. This week, we explore whether artificial intelligence could become sentient—and the legal and ethical implications if it did | Podcasts.

Aug 17, 2022

We are effectively alone in the universe

Posted by in category: futurism

It does not matter if intelligent life exists elsewhere. We will never find each other.

Aug 17, 2022

“More is different”: why reductionism fails at higher levels of complexity

Posted by in category: futurism

We cannot deduce laws about a higher level of complexity by starting with a lower level of complexity. Here, reductionism meets a brick wall.

Aug 17, 2022

2D boundaries could create electricity

Posted by in categories: energy, materials

There’s still plenty of room at the bottom to generate piezoelectricity. Engineers at Rice University and their colleagues are showing the way.

A new study describes the discovery of piezoelectricity—the phenomenon by which mechanical energy turns into —across phase boundaries of two-dimensional materials.

The work led by Rice materials scientists Pulickel Ajayan and Hanyu Zhu and their colleagues at Rice’s George R. Brown School of Engineering, the University of Southern California, the University of Houston, Wright-Patterson Air Force Base Research Laboratory and Pennsylvania State University appears in Advanced Materials.

Aug 17, 2022

Scientists Want to Block Out the Sun. Should We? Is it Even Possible?

Posted by in categories: biotech/medical, engineering

Iron could massively boost ocean algae populations.

Scientists suggest we could fertilize the world’s oceans with iron to fight climate change. Iron would lead to phytoplankton blooms, which would help to pull carbon dioxide out of the atmosphere.

Continue reading “Scientists Want to Block Out the Sun. Should We? Is it Even Possible?” »

Aug 17, 2022

Nuclear War Would Cause a Global Famine and Kill Billions, Rutgers-Led Study Finds

Posted by in categories: climatology, existential risks, military

We might all starve.

Researchers from Rutgers University calculated the possible effects of nuclear wars. The result shows that a nuclear war between countries such as Russia and USA could kill billions and cause starvation within two years.

It also demonstrates that large deficits would arise in imports due to the depletion of crops.

Continue reading “Nuclear War Would Cause a Global Famine and Kill Billions, Rutgers-Led Study Finds” »

Aug 17, 2022

Tasmanian tiger: Scientists hope to revive marsupial from extinction

Posted by in category: existential risks

Experts behind the project claim the technology for “de-extinction” already exists, but others are sceptical.

Aug 17, 2022

Watch NASA’s massive new rocket crawl toward its first launch

Posted by in category: space

The Space Launch System will start rolling out to its launchpad a few days ahead of schedule. It is headed to space for the first time as early as August 29th.

Aug 17, 2022

Holographic Conversational Video Experience allows you to communicate with deceased relatives

Posted by in categories: holograms, robotics/AI

The company StoryLife developed technology Holographic Conversational Video Experience that allows you to communicate with holograms of deceased relatives.

What we know

A U.S. startup has learned how to create a digital clone of a person before they die. It uses two dozen synchronized cameras to do so. They record answers to questions and then the resulting material is used to train artificial intelligence.

Continue reading “Holographic Conversational Video Experience allows you to communicate with deceased relatives” »

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