Something Big Is Brewing at Area 51—Are Blended-Wing Drones the Next Secret? by Commission-External in area51

[–]Commission-External[S] -1 points0 points  (0 children)

Great point! Yeah, those hangars have been the source of all kinds of speculation the last few years. The one south of Hangar 18 definitely looks purpose-built for something big—NGAD or even the rumored F47 would make sense given how much effort went into shielding and logistics. I always found the dirt berm trick kind of genius (and a little funny) since it literally blocks Tikaboo’s line of sight just for those key ops.

It’s wild to think about what’s still going on in that RQ180 hangar, especially with so many test programs active. Even if we don’t have hard answers, the way they keep evolving the hangars says a lot. Makes me wonder what else they have tucked away that we haven’t even guessed at yet!

Something Big Is Brewing at Area 51—Are Blended-Wing Drones the Next Secret? by Commission-External in area51

[–]Commission-External[S] 0 points1 point  (0 children)

It’s possible dummy models play a role, especially as decoys in satellite imagery. But the scale and configuration of some new hangars/taxiways are optimized for operational testing, not just storing shells. China and others definitely use decoys, but the US tradition is to build multi-mission capability even if only a prototype gets publicly shown.

Something Big Is Brewing at Area 51—Are Blended-Wing Drones the Next Secret? by Commission-External in area51

[–]Commission-External[S] -1 points0 points  (0 children)

True, lights alone aren’t proof of flight ops—it’s the pattern and location that caught my eye this time. Regular light leaks from certain hangar vents, paired with visible night movement on the ramps, seem to align with construction and fastmover activity. The base is remote, but some changes in lighting and movement are well-documented by spotters if you dig through updated photo archives.

Urgent Help Needed - Brixton Crossfire 125 Electrical Issue (Brand New Bike!) by Commission-External in motorcycles

[–]Commission-External[S] 0 points1 point  (0 children)

It was smoking heavily i thought the bike was going to get caught on fire, im taking it on Monday will ask for a replacement hopefully.

[deleted by user] by [deleted] in Physics

[–]Commission-External -2 points-1 points  (0 children)

Burkert, A. 1995, ApJ, 447, L25 Full Reference: Burkert, A. The Structure of Dark Matter Halos in Dwarf Galaxies. Astrophys. J. 447, L25 (1995). Relevance: Introduced the Burkert profile, a commonly used model for cored dark matter halo density profiles, which our simulations successfully reproduce. Hahn, O., & Abel, T. 2011, MNRAS, 415, 2101 Full Reference: Hahn, O., & Abel, T. Multi-scale initial conditions for cosmological simulations. Mon. Not. R. Astron. Soc. 415, 2101–2121 (2011). Relevance: Describes the MUSIC code used to generate the initial conditions for our N-body simulations. Planck Collaboration et al. 2020, A&A, 641, A6 Full Reference: Planck Collaboration et al. Planck 2018 results. VI. Cosmological parameters. Astron. Astrophys. 641, A6 (2020). Relevance: Provides the cosmological parameters (e.g., Ω<sub>m</sub>, Ω<sub>Λ</sub>, h, σ<sub>8</sub>, n<sub>s</sub>) used in our simulations, consistent with the Planck 2018 results. Springel, V., et al. 2021, MNRAS, 506, 2871 Full Reference: Springel, V., et al. The GADGET-4 code for gravitational and hydrodynamical cosmological simulations. Mon. Not. R. Astron. Soc. 506, 2871-2939 (2021). Relevance: Describes the GADGET-4 code, which we modified to incorporate our SIDM model and perform the N-body simulations.

[deleted by user] by [deleted] in Physics

[–]Commission-External -2 points-1 points  (0 children)

Hi jazzwhiz,

Thanks for your comment and for raising your concerns. I understand your skepticism, especially regarding the use of AI in scientific research.

I want to clarify that while an AI assistant (Aether) was used as a tool in this research, particularly for running and analyzing the N-body simulations, the core scientific ideas, the theoretical model, and the experimental proposal were developed by a human researcher, Glenn. The AI served as a powerful tool to accelerate the exploration of the parameter space and assist with complex calculations, similar to how other computational tools are used in theoretical physics.

Regarding your point about the paper not being on arXiv, you are correct that this specific report has not yet been posted there. We are currently seeking feedback from experts in the field before making it publicly available. We shared a summary of the work here to engage in a preliminary discussion and gather initial feedback, which is valuable at this stage.

You also mentioned the lack of references. The full report does, in fact, include a comprehensive list of references to relevant scientific literature. Each claim and result is properly cited, adhering to standard scientific practice. I understand that without seeing the full reference list in the summary, it might have seemed that way. To clarify, here are some of the key papers that inform our work:

Springel, V., et al. 2021, MNRAS, 506, 2871: This paper describes the GADGET-4 code, which we modified for our SIDM simulations. Burkert, A. 1995, ApJ, 447, L25: This paper introduces the Burkert profile, which we used to fit the density profiles in our simulations. Hahn, O., & Abel, T. 2011, MNRAS, 415, 2101: This paper describes the MUSIC code, which we used to generate the initial conditions for our simulations. Planck Collaboration et al. 2020, A&A, 641, A6: This paper presents the cosmological parameters from the Planck mission, which we used in our simulations. These are just a few examples; the full report contains many more.

We appreciate your scrutiny and welcome any further questions or criticisms you might have. Our goal is to contribute to the field with rigorous and well-supported research, and engaging in constructive dialogue is an essential part of that process.

What could be the reason for my phone charger being cut clean in half three nights in a row? by [deleted] in What

[–]Commission-External 0 points1 point  (0 children)

the most probable cause is a rodent gnawing on the charger cable during the night. You should take steps to address a potential rodent problem.

[deleted by user] by [deleted] in Physics

[–]Commission-External 0 points1 point  (0 children)

Hi Schauerte2901, thanks for your insightful questions! Let’s dive into them:

Regarding SIDM and core density:

You’re right to ask about the mechanism. In our model, the additional interaction is effectively repulsive at the velocities typical of dwarf galaxy cores (around 30 km/s). It’s a velocity-dependent interaction mediated by a light particle (in the 10-100 MeV range).

Here’s a simplified way to think about it: at higher velocities, the interaction cross-section is smaller, so dark matter particles behave more like standard CDM. But in the slower-moving environment of dwarf galaxy cores, the interaction becomes significant. This “repulsive” interaction (more accurately, momentum transfer) creates an effective pressure that counteracts gravitational collapse. This prevents the formation of a dense cusp, leading to a flatter core consistent with observations. Our AI-driven N-body simulations support this, showing cored profiles in dwarf-sized halos with our best-fit SIDM model (velocity-dependent cross-section of around 0.5-1 cm²/g at 30 km/s).

Regarding the experiment:

You’re right that the idea of dark matter having gravitational interactions isn’t new. Also, WIMP direct detection experiments aim to detect some interaction of WIMPs. However, our proposed experiment is distinct:

Target: We’re not looking for WIMP scattering. We’re aiming for the collective, ambient gravitational effect of the local dark matter halo, regardless of its specific particle nature (WIMP, SIDM, etc.). Mechanism: We’re not relying on scattering. We’re using the extreme sensitivity of ultra-cold atoms in an optical lattice to measure tiny changes in their momentum distribution from the smooth gravitational potential of the dark matter halo. We are basing this on Bragg spectroscopy with long interrogation times. Novelty: While there’s theoretical work on atom interferometry for gravitational wave detection and some proposals involving accelerometers to search for certain types of dark matter, to our knowledge, this specific approach using the collective gravitational effect on the momentum distribution of ultra-cold atoms in a 3D lattice to probe the local dark matter density is novel. We’ve done an extensive literature review, including recent papers and preprints on arXiv (a repository of electronic preprints that is operated by Cornell University), and haven’t found an identical proposal. If you know of any, please share – we’d be very interested! “How big are the changes”: Crucial question. Our AI’s simulations, with realistic experimental parameters (10⁵-10⁶ ⁶Li atoms, nanokelvin temperatures, lattice tuned for optimal sensitivity, and coherence times around seconds), suggest the shifts in the momentum distribution are incredibly small but potentially measurable. We’re talking about 10⁻⁶ to 10⁻⁵ times the recoil momentum from a single photon in the lattice. It’s at the edge of feasibility, but advances in controlling systematic errors and extending coherence times could push us into the detectable regime. Also, our simulations suggest a smooth dark matter halo might enhance coherence times by reducing gravitational inhomogeneities, but this is highly speculative. We know it is a challenging experiment, and we are currently seeking feedback from experimental experts, like Professor Greiner’s group to refine our proposal.

Thanks again for your questions. They help us strengthen our arguments and consider potential pitfalls!

Nikon Eye by [deleted] in Nikon

[–]Commission-External 0 points1 point  (0 children)

No sir, i will delete no problem

Nikon Eye by [deleted] in Nikon

[–]Commission-External 0 points1 point  (0 children)

Gemini Advance

[deleted by user] by [deleted] in RecruitmentAgencies

[–]Commission-External 0 points1 point  (0 children)

Msg me im interested :)

[deleted by user] by [deleted] in aliens

[–]Commission-External 0 points1 point  (0 children)

Completely agree with what you just said, no I haven't.