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Aug 28, 2022

The billionaire owns a small three-bedroom house

Posted by in categories: Elon Musk, habitats, space travel

Billionaire Elon Musk is known for being frugal. In June of 2021, he tweeted about living in a tiny house, stating: “My primary home is literally a ~$50k house in Boca Chica / Starbase that I rent from SpaceX. It’s kinda awesome though.”

That home is so small that it does not even have space for his mom when she visits. As such, the matriarch has to sleep in the garage.


@MattWallace888 My primary home is literally a ~$50k house in Boca Chica / Starbase that I rent from SpaceX. It’s kinda awesome though.

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Aug 28, 2022

NASA’s Artemis I launch has the world excited for Monday

Posted by in category: space

This will be the first mission of its kind. “It’s a long way away from the Apollo sites,” Sarah Noble, Artemis I lunar science lead for NASA’s Planetary Science Division, told CNN.

“All six Apollo landing sites were in the sort of central part of the near side (of the Moon). And now we’re going to someplace completely different in ancient geologic terrain.”

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Aug 28, 2022

The Technological Singularity is Near

Posted by in categories: Elon Musk, military, robotics/AI, singularity, space travel

This video will address the hypothesis that advances in artificial intelligence (AI) and neurotechnology could trigger a technological singularity. The singularity could involve the development of artificial intelligence (AI) that is superior to human intelligence, effectively blurring or perhaps removing the distinction between humans and machines.

There is no agreement on when artificial superintelligence will be achieved. Still, one thing is sure: we need to think about our collective goals before the alarming trend of technological singularity makes them irrelevant. Whether powered by AI or some other technical method, the singularity will result in a technological tsunami that will pose unprecedented challenges to human civilization and the physical world on all scales.

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Aug 28, 2022

Did the Big Bang happen?

Posted by in categories: cosmology, mathematics, open access, physics

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Physicists have many theories for the beginning of our universe: A big bang, a big bounce, a black hole, a network, a collision of membranes, a gas of strings, and the list goes on. What does this mean? It means we don’t know how the universe began. And the reason isn’t just that we’re lacking data, the reason is that science is reaching its limits when we try to understand the initial condition of the entire universe.

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Aug 28, 2022

Should We Fear Artificial Superintelligence?

Posted by in category: robotics/AI

Artificial intelligence has advanced faster than anyone expected, giving renewed urgency to the question of what comes next, artificial superintelligence, and what it means for us.

Aug 28, 2022

The Latest Webb Observations Don’t Disprove The Big Bang, But They Are Interesting

Posted by in category: cosmology

This isn’t what we see. What we observe is that more distant galaxies have a dimmer surface brightness than closer ones. The amount of dimming is proportional to the amount of redshift the galaxy has. You might think this proves that all those distant galaxies are speeding away from us, but it actually doesn’t. If those distant galaxies were speeding away, you’d have two dimming effects. The red shift and the ever-increasing distance. The Tolman test predicts that in a simple expanding universe, the surface brightness of galaxies should diminish proportional to both redshift and distance. We only see the effects of redshift.

This fact has led some to propose a static universe where light spontaneously loses energy over time. It’s the so-called tired light hypothesis, and it’s very popular among big bang opponents. If the universe is static and light is tired, then the Tolman test predicts exactly what we observe. Hence no big bang.

Back in 2014, Eric Lerner et al. published a paper making exactly this point. It caused a flurry of “Big Bang Dead!” articles in the popular media. The latest claims about Webb killing the big bang began with a popular article by the same Eric Lerner. So here we are. In fairness, back in 2014, the Hubble observations supported Lerner’s claim, and so do the latest Webb observations. But what Lerner conveniently omitted from his paper is that the Hubble and Webb observations also support the LCDM model.

Aug 28, 2022

Algae-powered computer runs for a year on light and water

Posted by in category: computing

An algae-powered computer: Researchers from the University of Cambridge and British tech company Arm have now demonstrated a different source of power for IoT devices: algae.

For their study, published in the journal Energy & Environmental Science, the team built a container about the size of a AA battery out of aluminum and clear plastic. They then filled it with water and algae that use photosynthesis to harvest energy from sunlight.

That process produces a small electric current. An electrode in the device uses that current to power a tiny computer processor commonly used in IoT devices.

Aug 28, 2022

Want a Good Reason to Capture Carbon Dioxide? — Use It to Power the Electrical Grid

Posted by in category: nuclear energy

Steam turbines could be replaced by pressurized carbon dioxide (CO2) closed-loop systems to spin turbines.


Steam turbines in thermal power generation are today’s standard. But pressurized carbon dioxide (CO2) in a closed-loop system could do the job. Supercritical CO2 acting as both a liquid and a gas under extreme pressure would provide the impetus to spin a turbine. Using supercritical CO2 may prove to be far more efficient than steam to provide emissions-free power to the electrical grid. Energy input coming from renewable sources such as wind, solar, geothermal, as well as nuclear power, or even gas or coal-fired thermal energy power plants with accompanying carbon capture technology could be combined with this technology to be an effective addition to energy utilities.

Recently researchers at the Sandia National Laboratory Kirtland Air Force Base in the United States demonstrated a closed-loop Brayton Cycle engine technology as it delivered power to the electrical grid continuously. Sandia has been working with the Brayton Cycle technology for power generation for some time now because it is seen as having significant energy conversion advantages over conventional steam turbines by as much as 50%.

Aug 28, 2022

Artificial womb possibility

Posted by in categories: biotech/medical, health

Biomedical researchers working with lambs got promising results from an experiment designed to prevent the health problems associated with premature births.

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Aug 28, 2022

Government Types of the Future

Posted by in categories: government, space

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Over the centuries humanity has tried many versions of government and many variations on each type, today we will examine how technology and space colonization might impact what types of governments we use in the future.

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