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Nov 10, 2020

Exponential Wisdom Episode 93: Longevity Mindset: Part 3

Posted by in categories: biotech/medical, life extension

Peter and Dan continue their conversation about the Abundance Platinum Longevity trip, where Peter and a select group of entrepreneurs, executives and investors spent five days learning from the top longevity and immunology experts in two of California’s top biotech hubs.

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Nov 10, 2020

Tiny device enables new record in super-fast quantum light detection

Posted by in categories: computing, engineering, quantum physics

Bristol researchers have developed a tiny device that paves the way for higher performance quantum computers and quantum communications, making them significantly faster than the current state-of-the-art.

Researchers from the University of Bristol’s Quantum Engineering Technology Labs (QET Labs) and Université Côte d’Azur have made a new miniaturized detector to measure quantum features of light in more detail than ever before. The device, made from two working together, was used to measure the of “squeezed” quantum light at record high speeds.

Harnessing unique properties of quantum physics promises novel routes to outperform the current state-of-the-art in computing, communication and measurement. Silicon photonics—where light is used as the carrier of information in silicon micro-chips—is an exciting avenue towards these next-generation technologies.

Nov 9, 2020

Europa glows: Radiation does a bright number on Jupiter’s moon

Posted by in categories: particle physics, space

As the icy, ocean-filled moon Europa orbits Jupiter, it withstands a relentless pummeling of radiation. Jupiter zaps Europa’s surface night and day with electrons and other particles, bathing it in high-energy radiation. But as these particles pound the moon’s surface, they may also be doing something otherworldly: making Europa glow in the dark.

New research from scientists at NASA’s Jet Propulsion Laboratory in Southern California details for the first time what the glow would look like, and what it could reveal about the composition of ice on Europa’s . Different salty compounds react differently to the radiation and emit their own unique glimmer. To the naked eye, this glow would look sometimes slightly green, sometimes slightly blue or white and with varying degrees of brightness, depending on what material it is.

Scientists use a spectrometer to separate the light into wavelengths and connect the distinct “signatures,” or spectra, to different compositions of ice. Most observations using a spectrometer on a moon like Europa are taken using reflected sunlight on the moon’s dayside, but these new results illuminate what Europa would look like in the dark.

Nov 9, 2020

Study sets the first germanium-based constraints on dark matter

Posted by in categories: biotech/medical, futurism

Cosmological observations and measurements collected in the past suggest that ordinary matter, which includes stars, galaxies, the human body and countless other objects/living organisms, only makes up 20% of the total mass of the universe. The remaining mass has been theorized to consist of so-called dark matter, a type of matter that does not absorb, reflect or emit light and can thus only be indirectly observed through gravitational effects on its surrounding environment.

While the exact nature of this elusive type of matter is still unknown, in recent decades, physicists have identified many particles that reach beyond the standard model (the theory describing some of the main physical forces in the universe) and that could be good candidates. They then tried to detect these particles using two main types of advanced particle detector: gram-scale semiconducting detectors (usually made of silicon and used to search for low-mass dark matter) and ton-scale gaseous detectors (which have higher energy detection thresholds and are better suited to perform high-mass dark matter searches).

The EDELWEISS Collaboration, a large group of researchers working at Université Lyon 1, Université Paris-Saclay and other institutes in Europe, recently carried out the first search for Sub-MeV dark matter using a germanium(Ge)-based detector. While the team was unable to detect dark matter, they set a number of constraints that could inform future investigations.

Nov 9, 2020

First passengers travel in Virgin’s levitating hyperloop pod system

Posted by in category: transportation

The company is working towards safety certification by 2025 and commercial operations by 2030, it has said.

Canada’s TransPod and Spain’s Zeleros also aim to upend traditional passenger and freight networks with similar technology they say will slash travel times, congestion and environmental harm linked with petrol-fuelled machines.

High-speed pods could eventually make New York-Washington trip in 30 minutes.

Continue reading “First passengers travel in Virgin’s levitating hyperloop pod system” »

Nov 9, 2020

SpaceX Starlink Satellite Internet Enters German Market This Year

Posted by in categories: internet, satellites

Starlink is a global satellite system being deployed by SpaceX to provide high-speed broadband Internet access to locations where it was unreliable, unreasonably expensive or completely inaccessible. All over the world, even in well-developed countries, there are many remote regions that are lagging far behind in the speed of digital development, and Germany is no exception. Nevertheless, good news awaits the residents of the country, because, according to a representative of Starlink, the company will enter the German market this year.

In Frankfurt am Main, the groundwork has been laid for the Starlink universal Internet offering. According to the relevant trade register entry, Starlink Germany GmbH must offer Internet connection services and the sale or rental of the necessary accessories.

“If everything goes according to plan, we will start this year in Germany,” said VP Build and Flight Reliability at SpaceX Hans Königsmann to Wirtschaftswoche. “Our mission is to provide fast Internet access to remote corners of the world.”

Nov 9, 2020

The Craters on Earth: New Atlas Presents and Explains the Impact Sites of Meteorites and Asteroids Worldwide

Posted by in categories: asteroid/comet impacts, existential risks, mapping, satellites

Prof. Dr. Thomas Kenkmann, geologist from the University of Freiburg’s Institute of Earth and Environmental Sciences, together with mineralogist Prof. Dr. Wolf Uwe Reimold from the University of Brasilia, Brazil, and Dr. Manfred Gottwald from the German Aerospace Center (DLR) published an atlas providing a comprehensive overview of all known impact craters on every continent. The authors present the more than 200 terrestrial impact sites in high-resolution topographic maps and satellite images, complete with detailed geological descriptions and photographs of the crater structures and their rocks. They also explain the essential details of each impact event.

The formation of craters by asteroid and comet impact has always been a fundamental process in the solar system, explains Kenkmann. As the planets developed along with their moons, these impacts played an important part in accreting planetary mass, shaping the surfaces of planetary bodies, and later also influencing their development. And larger meteorite impacts eventually affected the development of life on Earth.

Today, mapping of what can still be seen of the impact structures on the Earth’s surface can be done by satellites in low Earth orbit. From 2010 to 2016, the DLR successfully measured the Earth’s surface with the radar satellites of the TanDEM-X mission. The acquired data allowed, for the first time, to derive a worldwide terrain model with a height accuracy of up to one meter. From this global digital elevation model the authors have been able to produce this complete topographic atlas of 600 pages with information about all terrestrial impact craters known to date.

Nov 9, 2020

SpaceX gets $29 million Space Force contract for surveillance of non-military launches

Posted by in categories: military, space, surveillance

WASHINGTON — SpaceX was awarded a $29.6 million contract under the National Security Space Launch Phase 2 contract that allows the U.S. Space Force to monitor and study data from the company’s commercial and civil space missions.

The one-year contract “provides early integration studies and fleet surveillance for non-national security space missions,” said the Space Force contract announcement Nov. 9.

Fleet surveillance includes access to proprietary “tools, systems, processes and launch site activities developed by the launch service provider for non-national security space missions,” said the Space Force.

Nov 9, 2020

Jupiter’s moon Europa glows in the dark, scientists say

Posted by in categories: chemistry, space

The glow could help scientists determine if a subsurface ocean on Europa is a good place to look for life.

Intense radiation from the giant planet Jupiter causes the night side of its moon Europa to visibly glow in the dark – a phenomenon that could help scientists learn if it can sustain simple forms of life, according to a new study.

The findings, published Monday in the journal Nature Astronomy, were the result of experiments by NASA scientists to study how Jupiter’s radiation affects the chemistry of Europa, which is thought to harbor a subsurface ocean of water.

Continue reading “Jupiter’s moon Europa glows in the dark, scientists say” »

Nov 9, 2020

Inside the Secret Math Society Known Simply as Nicolas Bourbaki

Posted by in category: mathematics

For almost a century, the anonymous members of Nicolas Bourbaki have written books intended as pure expressions of mathematical thought.