good morning!
did some early-morning ponding on the #pandemicPond this morning.
The water level was unusually low, so I started looking around for leaks or blocks. I have been wanting to cut down the vertical PVC at the top of the bog barrels to make it not stick out so much and blend in a little nicer and also because it would reduce the height for the pump, so increase flow.
Well it turns out that connection, where the black pipe goes into the white PVC in the barrel, was a little loose and some water was leaking out and adding to the evaporation budget.
So that gave me the push to do the small modifications on the top end of the pipe. It was also a good time since turning off the pump meant the top pond would drain into the bottom pond. When the system is full, that would normally cause the bottom pond to over flow, but since it was all low, no extra water was lost.
I cut the inlet down a few inches under the water in the bog barrel to move the T down and then cut another 6in from the top pipe to snug it all up.
Then I also tightened up the connections for the over flow/air valve and added an elbow to keep water from escaping out the valve outlet. Only took about 5 minutes. I have been wanting to do this for months. 😂
Result:
black pipe doesn't curl as high over the barrel ✅
no more leak from the PVC connection ✅
no more water escaping from the air valve ✅
noticeably more flow over the waterfall! ✅
Pump is back on and water is replenished from the rain barrel ✅
the fish are happy! 🐟 and me too. ✅
oh oh! did I tell you we have a new fish! The top pond fish had babies and it looks like one has survived to be big enough not to be cannibalized. 😂 It is very skittish and is still mostly black so I havent got a good picture of it yet.
#pondlife #diy #gardening #portalberni
Sources: the Pentagon has subjected roughly 50 military officers and civilian employees on the Joint Staff to polygraph tests over leaks to journalists (New York Times)
https://www.nytimes.com/2026/09/04/us/poli
Crosslisted article(s) found for math.CV. https://arxiv.org/list/math.CV/new
[1/1]:
- $m$-Positive Stability of Holomorphic Vector Bundles and Moduli Spaces
Dan Popovici
https://arxiv.org/abs/2607.17203 https://mastoxiv.page/@arXiv_mathDG_bot/116956936619519985
- Universal Correlators on Exponentially Ramified Spectral Curves
Mohamad Alameddine, Alexander Hock
https://arxiv.org/abs/2607.17711 https://mastoxiv.page/@arXiv_mathph_bot/116956963922457688
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Integrated cosmological memory: A dark-siren method to probe dark energy
Indranil Chakraborty, Sayantan Ghosh, Susmita Jana, Archana Pai, S. Shankaranarayanan
https://arxiv.org/abs/2608.03739 https://arxiv.org/pdf/2608.03739 https://arxiv.org/html/2608.03739
arXiv:2608.03739v1 Announce Type: new
Abstract: Gravitational-wave (GW) cosmology is currently bottlenecked by the scarcity of electromagnetic counterparts for bright sirens and the systematic uncertainties of galaxy catalogs for dark sirens. We propose a purely gravitational resolution using the Integrated Cosmological Memory (ICM)-the cumulative GW strain encoded in the spacetime geometry of an expanding Universe. While the GW transient emitted by the source provides the luminosity distance, the ICM accumulates a mathematically distinct integral of the cosmic expansion history. We demonstrate that extracting both observables from a single binary merger completely breaks the distance-redshift degeneracy within the gravitational sector. This establishes a novel, catalog-free dark siren framework for third-generation GW detector networks. Crucially, the resulting constraints on late-time dark energy are only weakly sensitive to the local expansion rate, providing a robust cosmological probe that can potentially mitigate the impact of the H0 tension.
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ESPN pinpoints Raiders X-factor the 2026 season https://raiderswire.usatoday.com/story/sports/nfl/raiders/2026/07/06/espn-pinpoints-raiders-x-factor-the-2026-season/90826480007/
F.B.I. agents and federal prosecutors have sought evidence related to at least eight scientists,
among them a Nobel laureate
and influential former government researchers like Dr. Fauci.
Investigators have demanded phone, email, grant and payment records,
as well as grand jury testimony by scientists.
It is not clear what evidence those inquiries have produced or what their status is.
Dr. Fauci,
once the government’s chief infectious disease scienti…
Preferential Attachment as a Simpliciality-Enforcing Mechanism in Hypergraphs
Jason LaRuez, Brendan Rooney
https://arxiv.org/abs/2608.09788 https://arxiv.org/pdf/2608.09788 https://arxiv.org/html/2608.09788
arXiv:2608.09788v1 Announce Type: new
Abstract: Higher-order networks, represented as hypergraphs, enable direct modeling of multi-body interactions of arbitrary size. Hypergraph representations of real-world systems have been observed to exhibit high \emph{simpliciality} --- the tendency for subsets of hyperedges to also appear as hyperedges --- yet the generative mechanisms responsible for this structure are poorly understood. We introduce a generalized preferential attachment hypergraph model in which both hyperedge size $Y_t$ and the number of new nodes per step $X_t$ are drawn from arbitrary distributions, and derive analytically, using a mean-field approximate master equation approach, that the stationary hyperdegree distribution follows a power law whose exponent depends only on the ratio $p = E[X_t]/E[Y_t]$, independent of the shapes of the underlying distributions. Crucially, both $X_t$ and $Y_t$ can be estimated directly from any timestamped hypergraph dataset via a backward-stepping procedure, enabling the model to be fit without parametric assumptions. Applying a nonlinear extension of the model to eight real-world hypergraph datasets, we find that the simplicial fraction increases monotonically with the strength of preferential attachment up to the gelation transition at $\alpha > 1$, establishing preferential attachment as a simpliciality-enforcing mechanism.
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Crosslisted article(s) found for math.DS. https://arxiv.org/list/math.DS/new
[2/2]:
- Monodromy action on character varieties for Lefschetz pencils
Ishan Banerjee
https://arxiv.org/abs/2608.01700 https://mastoxiv.page/@arXiv_mathAG_bot/117036317126130150
- Exponential mixing for Korteweg-de Vries equation with localized noise
Yuxuan Chen, Shengquan Xiang, Zhifei Zhang, Jia-Cheng Zhao
https://arxiv.org/abs/2608.01863 https://mastoxiv.page/@arXiv_mathAP_bot/117036472648751140
- Minimal Hyperbolic Area of Teichmuller Curves in Genus Two
Xiaoyu Su, Yumin Zhong
https://arxiv.org/abs/2608.01984 https://mastoxiv.page/@arXiv_mathGT_bot/117036268760239763
- Feed-Forward Steering in Transformer Residual Dynamics
Timur Mudarisov, Mikhail Burtsev, Radu State
https://arxiv.org/abs/2608.02071 https://mastoxiv.page/@arXiv_csLG_bot/117036543038427323
- Log Calabi--Yau structure for endomorphisms on $\mathbf{P}^n$
Yujie Luo, Sheng Meng
https://arxiv.org/abs/2608.02114 https://mastoxiv.page/@arXiv_mathAG_bot/117036319880674445
- ICC property(T) groups without W$^*$-superrigidity
Shuoxing Zhou
https://arxiv.org/abs/2608.02327 https://mastoxiv.page/@arXiv_mathOA_bot/117036168682911970
- The Geometry and Dynamics of Spiral Minimal Products
Haizhong Li, Yongsheng Zhang
https://arxiv.org/abs/2608.02370 https://mastoxiv.page/@arXiv_mathDG_bot/117036305133115376
- Convergence Rate of Birkhoff Average for Toral Quasi-Periodic Rotations and Applications
Son N. T. Tu, Jianlu Zhang
https://arxiv.org/abs/2608.02489 https://mastoxiv.page/@arXiv_mathAP_bot/117036492113428030
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