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Simulations and supercomputing calculate one million orbits in cislunar space

Satellites and spacecraft in the vast region between the earth and moon and just beyond — called cislunar space — are crucial for space exploration, scientific advancement and national security. But figuring out where exactly to put them into a stable orbit can be a huge, computationally expensive challenge.

In an open-access database and with publicly available code, researchers at Lawrence Livermore National Laboratory (LLNL) have simulated and published one million orbits in cislunar space. The effort, enabled by supercomputing resources at the Laboratory, provides valuable data that can be used to plan missions, predict how small perturbations might change orbits and monitor space traffic.

To begin, the Space Situational Awareness Python package takes in a range of initial conditions for an orbit, like how elliptical and tilted the orbit is and how far it gets from the earth.

Scientists Announce a Real Warp Drive Is Now Possible

Scientists say a real warp drive may no longer be pure science fiction, thanks to new breakthroughs in theoretical physics. Recent studies suggest space itself could be compressed and expanded, allowing faster-than-light travel without breaking known laws of physics. Unlike sci-fi engines, this concept wouldn’t move a ship through space — it would move space around the ship. Researchers are now exploring how energy, gravity, and exotic matter could make this possible. In this video, we explain how a warp drive could work and how close science really is.

Credit:
Star Wars: Episode VIII — The Last Jedi / Lucasfilm https://www.imdb.com/title/tt2527336/.… Trek Beyond / Paramount Pictures https://www.imdb.com/title/tt2660888/.… Lost in Space / New Line Cinema https://www.imdb.com/title/tt0120738/.… Parker Solar Probe touches the Sun: By NASA/Johns Hopkins APL/Ben Smith — https://svs.gsfc.nasa.gov/14036, https://commons.wikimedia.org/wiki/Fi… Parker Solar Probe: By NASA’s Scientific Visualization Studio — Johns Hopkins University/APL/Betsy Congdon, Johns Hopkins Applied Physics Laboratory/Yanping Guo, Johns Hopkins Applied Physics Laboratory/John Wirzburger, NASA/Nicola Fox, NASA/Kelly Korreck, Johns Hopkins University/APL/Nour Raouafi, NASA/Joseph Westlake, eMITS/Joy Ng, eMITS/Beth Anthony, eMITS/Lacey Young, ADNET Systems, Inc./Aaron E. Lepsch — https://svs.gsfc.nasa.gov/14741, https://commons.wikimedia.org/wiki/Fi… Parker Solar Probe: By NASA/Johns Hopkins APL/Steve Gribben — http://parkersolarprobe.jhuapl.edu/Mu…, https://commons.wikimedia.org/w/index… Vertical Testbed Rocket: By NASA Armstrong Flight Research Center — https://www.nasa.gov/armstrong/, https://commons.wikimedia.org/wiki/Fi… […]cket_(AFRC-2017–11349-1_Masten-COBALT-UnTetheredFLT1).webm Interstellar / Paramount Pictures Stargate / Canal+ CC BY-SA 3.0 https://creativecommons.org/licenses/.… Alcubierre: By AllenMcC., https://commons.wikimedia.org/w/index… Miguel alcubierre: By Jpablo.romero, https://commons.wikimedia.org/w/index… Water wave analogue of Casimir effect: By Denysbondar, https://commons.wikimedia.org/wiki/Fi… Casimir plates: By Emok, https://commons.wikimedia.org/w/index… CC BY-SA 4.0 https://creativecommons.org/licenses/.… Proxima Centauri b: By ESO/Konstantino Polizois/Nico Bartmann — http://www.eso.org/public/unitedkingd…, https://commons.wikimedia.org/wiki/Fi… WARP Reactor Concept Movie: By WarpingSpacetime, https://commons.wikimedia.org/wiki/Fi… Ag Micromirrors: By Simpik, https://commons.wikimedia.org/wiki/Fi… Animation is created by Bright Side.
Star Trek Beyond / Paramount Pictures https://www.imdb.com/title/tt2660888/.…
Lost in Space / New Line Cinema https://www.imdb.com/title/tt0120738/.…
Parker Solar Probe touches the Sun: By NASA/Johns Hopkins APL/Ben Smith — https://svs.gsfc.nasa.gov/14036, https://commons.wikimedia.org/wiki/Fi…
Parker Solar Probe: By NASA’s Scientific Visualization Studio — Johns Hopkins University/APL/Betsy Congdon, Johns Hopkins Applied Physics Laboratory/Yanping Guo, Johns Hopkins Applied Physics Laboratory/John Wirzburger, NASA/Nicola Fox, NASA/Kelly Korreck, Johns Hopkins University/APL/Nour Raouafi, NASA/Joseph Westlake, eMITS/Joy Ng, eMITS/Beth Anthony, eMITS/Lacey Young, ADNET Systems, Inc./Aaron E. Lepsch — https://svs.gsfc.nasa.gov/14741, https://commons.wikimedia.org/wiki/Fi…
Parker Solar Probe: By NASA/Johns Hopkins APL/Steve Gribben — http://parkersolarprobe.jhuapl.edu/Mu…, https://commons.wikimedia.org/w/index…
Vertical Testbed Rocket: By NASA Armstrong Flight Research Center — https://www.nasa.gov/armstrong/, https://commons.wikimedia.org/wiki/Fi… […]cket_(AFRC-2017–11349-1_Masten-COBALT-UnTetheredFLT1).webm.
Interstellar / Paramount Pictures.
Stargate / Canal+
CC BY-SA 3.0 https://creativecommons.org/licenses/.…
Alcubierre: By AllenMcC., https://commons.wikimedia.org/w/index…
Miguel alcubierre: By Jpablo.romero, https://commons.wikimedia.org/w/index…
Water wave analogue of Casimir effect: By Denysbondar, https://commons.wikimedia.org/wiki/Fi…
Casimir plates: By Emok, https://commons.wikimedia.org/w/index…
CC BY-SA 4.0 https://creativecommons.org/licenses/.…
Proxima Centauri b: By ESO/Konstantino Polizois/Nico Bartmann — http://www.eso.org/public/unitedkingd…, https://commons.wikimedia.org/wiki/Fi…
WARP Reactor Concept Movie: By WarpingSpacetime, https://commons.wikimedia.org/wiki/Fi…
Ag Micromirrors: By Simpik, https://commons.wikimedia.org/wiki/Fi…
Animation is created by Bright Side.

Nothing Is Real: The Simulation Hypothesis

Are we living inside a computer simulation? The evidence is more compelling than you think.

In this deep exploration of the Simulation Hypothesis, we examine the scientific and philosophical arguments that suggest our reality might be code. From Nick Bostrom’s groundbreaking trilemma to quantum mechanics acting like a computer program, from the fine-tuned constants of physics to Elon Musk’s probabilistic arguments—we follow the evidence wherever it leads. Whether we’re simulated or not, the question reveals profound truths about consciousness, reality, and what it means to be human.

CHAPTERS:

0:00 — The Uncomfortable Question.

4:47 — Nick Bostrom’s Trilemma: The Logical Trap.

9:34 — The Ancestor Simulation Scenario.

Continue reading “Nothing Is Real: The Simulation Hypothesis” | >

The Mystery of Consciousness: Antonio Damasio & David Chalmers with Marcelo Gleiser

A neuroscientist, a philosopher and a physicist convene to discuss one of the biggest and most significant questions of all time: human consciousness, what we know and don’t know about it, and whether science will ever be able to understand what makes you, you.

Recorded Oct 16, 2016 at The 92nd Street Y, New York.

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CATL unveils battery with 12-minute charging and 1.5 million mile life

The company is already the world’s largest battery maker, supplying cells to major automakers. With this latest development, the battery giant is positioning itself at the center of the race to deliver gasoline-like convenience without sacrificing durability.

The core challenge engineers set out to address was whether an EV battery could withstand repeated ultra-fast charging without rapid degradation. A 5C charge rate means an 80-kilowatt-hour battery pack could theoretically accept around 400 kilowatts of power. That level of charging can refill a battery in roughly 12 minutes, similar to a typical gas stop.

Fast charging has long been associated with faster wear. The engineers tested whether the chemistry could handle that stress over time. According to the company, the answer was yes. Under standard conditions at 68°F, the battery retained at least 80 percent of its original capacity after 3,000 full charge-and-discharge cycles.

Realization of two-dimensional discrete time crystals with anisotropic Heisenberg coupling

Experimental realizations of discrete time crystals have mainly involved 1D models with Ising-like couplings. Here, the authors realize a 2D discrete time crystal with anisotropic Heisenberg coupling on a quantum simulator based on superconducting qubits, uncovering a rich phase diagram.

Experiments Hint on Time Being an Illusion

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Hello and welcome! My name is Anton and in this video, we will talk about experimental evidence that time may be an illusion.
Links:
https://arxiv.org/pdf/2310.13386
https://journals.aps.org/prd/pdf/10.1103/qfns-48vq.
https://en.wikipedia.org/wiki/Problem_of_time.
https://journals.aps.org/prl/pdf/10.1103/5rtj-djfk.
https://journals.aps.org/prx/pdf/10.1103/PhysRevX.11.021029
https://journals.aps.org/prx/pdf/10.1103/PhysRevX.7.031022
#time #physics #universe.

0:00 Time — what is it?
1:20 Time in general relativity (Einstein)
2:10 Quantum mechanics time.
2:40 The problem of time.
3:30 Page Wootters mechanism — is time emergent?
5:00 Experiments and possible proofs — entropy and quantum dots.
7:40 Large scale system.
8:30 What this suggests and how black holes can help.
9:50 Conclusions.

Enjoy and please subscribe.

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Continue reading “Experiments Hint on Time Being an Illusion” | >

Community Series in Vaccines and approaches that target trained immunity in COVID-19: Immunological mechanisms of action and delivery: Volume II

2024 This is a first of its kind univversal covid 19 vaccine that would allow for a one time shot that is good for current versions of the virus and future versions aswell.

A universal recombinant adenovirus type-5 (Ad5) vaccine against COVID19 (Ad-US) was constructed, and immunogenicity and broad-spectrum of Ad5-US were evaluated with both intranasal and intramuscular immunization routes. The humoral immune response of Ad5-US in serum and bronchoalveolar lavage fluid were evaluated by the enzyme-linked immunosorbent assay (ELISA), recombinant vesicular stomatitis virus based pseudovirus neutralization assay, and angiotensin-converting enzyme-2 (ACE2)-binding inhibition assay. The cellular immune response and Th1/Th2 biased immune response of Ad5-US were evaluated by the IFN-γ ELISpot assay, intracellular cytokine staining, and Meso Scale Discovery (MSD) profiling of Th1/Th2 cytokines. Intramuscular priming followed by an intranasal booster with Ad5-US elicited the broad-spectrum and high levels of IgG, IgA, pseudovirus neutralizing antibody (PNAb), and Th1-skewing of the T-cell response. Overall, the adenovirus type-5 vectored universal SARS-CoV-2 vaccine Ad5-US was successfully constructed, and Ad5-US was highly immunogenic and broad spectrum. Intramuscular priming followed by an intranasal booster with Ad5-US induced the high and broad spectrum systemic immune responses and local mucosal immune responses.

According to the World Health Organization, as of March 15, 2024, over 774 million COVID-19 cases and almost 7 million related deaths had been reported globally. A total of 13.59 billion doses of COVID-19 vaccines have been reportedly administered globally, leading to a vaccination rate of 69.7%. At present, at least 24 types of COVID-19 vaccines have been authorized for emergency use in various countries. According to the list of global COVID-19 candidate vaccines published on the WHO website, a total of 183 candidate vaccines are in clinical development and 199 candidate vaccines are in the preclinical evaluation stage as of April 8, 2023. Recombinant protein subunit vaccines account for the greatest proportion of vaccines in clinical development (59 vaccines, 32%), followed by RNA vaccines (43 vaccines, 24%).

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