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Jan 7, 2020

Using relativistic effects for laser fusion: A new approach for clean power

Posted by in category: nuclear energy

A team of researchers at Osaka University has investigated a new method for generating nuclear fusion power, showing that the relativistic effect of ultra-intense laser light improves upon current “fast ignition” methods in laser-fusion research to heat the fuel long enough to generate electrical power. These findings could provide a spark for laser fusion, ushering in a new era of carbonless energy production.

Current nuclear power uses the fission of heavy isotopes, such as uranium, into lighter elements to produce power. Yet, this fission power has major concerns, such as spent fuel disposal and the risk of meltdowns. A promising alternative to fission is . Like all stars, our sun is powered by the of light isotopes, notably hydrogen, into heavier elements. Fusion has many advantages over fission, including the lack of hazardous waste or risk of uncontrolled nuclear reactions.

However, getting more energy out of a fusion reaction than was put into it has remained an elusive goal. This is because hydrogen nuclei strongly repel each other, and fusion requires and pressure conditions—like those found in the interior of the sun, for instance—to squeeze them together. One method, called “inertial confinement” uses extremely high-energy laser pulses to heat and compress a fuel pellet before it gets the chance to be blown apart. Unfortunately, this technique requires extremely precise control of the laser’s energy so that the compression shock waves all arrive at the center simultaneously.

Jan 7, 2020

Gene therapy shows promise in reversing untreatable bindness

Posted by in category: biotech/medical

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Jan 7, 2020

SpaceX Launches 60 Starlink Satellites, Nails Rocket Landing in Record-Breaking Flight

Posted by in categories: internet, satellites

A SpaceX Falcon 9 rocket launched 60 Star broadband internet satellites into orbit and landed back on Earth, making SpaceX the operator of a record-breaking 180 satellites in orbit today.

SpaceX Launches 60 Star Satellites, Nails Rocket Landing in Record-Breaking Flight : Read more

There are other views of launching so many satellites too. Astronomers say SpaceX’s satellites are too bright in the sky. Friday’s launch will try to fix that.

Jan 7, 2020

I spy, with my little satellite AI, something beginning with ‘North American image-analysis code embargo’

Posted by in categories: government, military, policy, robotics/AI

The US government has placed software designed to train neural networks to analyse satellite images under new export controls in a bid to prevent foreign adversaries using said code.

The decision, made by Uncle Sam’s Bureau of Industry and Security (BIS), is effective today. Vendors shipping software subject to the controls – in that the applications help machine learning systems annotate satellite images in a particular way – will have to apply for a license to sell their products to customers outside of the US and Canada.

“Items warrant control for export because the items may provide a significant military or intelligence advantage to the United States or because foreign policy reasons justify control,” the BIS said.

Jan 7, 2020

Samsung’s Artificial Humans Look Eerily, Well, Human

Posted by in category: futurism

Project NEON might just live up to the hype.

Jan 7, 2020

Inside Samsung’s Futuristic $300 Million Office | Open Office | WSJ

Posted by in category: futurism

Samsung’s North American headquarters was designed to integrate into Silicon Valley, not wall employees off from it. Take a tour with WSJ’s Adam Falk as he checks out the workspace, including its elevated, open-air gardens.

Photo: Verus Productions

#WSJ #Samsung #OpenOffice

Jan 7, 2020

Treating Glaucoma with Senolytics

Posted by in categories: biotech/medical, life extension

New research suggests that senolytic drugs, which remove harmful senescent cells that accumulate during aging, may be an effective therapy for glaucoma, a common age-related condition that leads to loss of vision.

In the short term, inflammation serves a useful purpose, as it helps to spur the repair and regeneration of tissue and rallies the immune system to defend against marauding invaders.

However, the chronic, smoldering, low-grade inflammation that occurs during aging can be incredibly harmful. The sources of this “inflammaging,” as some researchers describe it, include (but are not limited to) dysfunctional immune cells, cell debris, disruption to the gut microbiome, and senescent cells. Today, we are concerned about the latter after the release of a new study focusing on senescent cells and glaucoma [1].

Jan 6, 2020

Graziano Lab: CONSCIOUSNESS AND THE SOCIAL BRAIN

Posted by in category: habitats

If you’re interested in mind uploading, then I have a chapter that may be of interest to you. The title is:

by Michael Graziano and Taylor W. Webb.

This chapter describes in straightforward language a theory of consciousness termed Attention Schema Theory.

Continue reading “Graziano Lab: CONSCIOUSNESS AND THE SOCIAL BRAIN” »

Jan 6, 2020

Iranian hackers are likely planning social engineering and phishing attacks — but web site defacements are meaningless

Posted by in category: futurism

City governments, agencies and companies are on high alert for ramped-up cyber activity possibly emanating from Iran. But attacks to a handful of websites across the globe, purportedly in the name of Iranian activists groups, aren’t cause for much concern and can’t truly be attributed to Iran in the short term.

Jan 6, 2020

Glitch detected in the pulsar PSR J0908−4913

Posted by in category: space

Using the Molonglo Observatory Synthesis Telescope (MOST), astronomers have detected a glitch in the radio pulsar PSR J0908−4913. The finding, detailed in a paper published December 18 on the arXiv preprint server, could be helpful in shedding more light on the properties and nature of this pulsar.

Extraterrestrial sources of radiation with a regular periodicity, known as pulsars, are usually detected in the form of short bursts of radio emission. Radio pulsars are generally described as highly magnetised, rapidly rotating neutron stars with a lighthouse beam of radiation that produces the pulsed emission.

Glitches are sudden changes of the pulsar’s spin rate. The exact cause of the glitches is still unknown, however, they are believed to be caused by an internal process within the pulsar. The most popular hypotheses suggest that the glitches can originate from either a transfer of angular momentum from the core to the crust via the unpinning of superfluid vortices or cracking of the star’s crust. Identifying and studying new glitches could therefore be crucial to improve our understanding of their origin and the nature of pulsars in general.