Tootfinder

Had an amazing experience at a windmill in the #Netherlands. It was spinning so I asked if I‘m allowed to look inside. The miller was very eager and happy to explain everything and his trainee stopped and started the massive mechanism while we were inside the top. That particular mill had an Archimedes screw to pump water.

Next-generation soliton frequency combs in photonic-crystal and nanocomposite microresonators
Haixin Liu, Alexa Carollo, Jizhao Zang, Scott B. Papp
https://arxiv.org/abs/2508.13393

Next-generation soliton frequency combs in photonic-crystal and nanocomposite microresonators
Microresonator frequency combs offer tremendous opportunity to advance applications in fundamental research and technology by linking the optical and microwave frequency domains. Kerr-nonlinear microresonators further enable the generation of portable, integrated optical frequency combs, which are called microcombs. However, the dispersion engineering usually suffers from the small, geometric parameter space, and achieving soliton microcombs is challenging and usually requires complicated exper…

Statistical Analysis of PAHs as a Tracer of Anomalous Microwave Emission Using DIRBE Data
Danielle Sponseller, David T. Chuss, Brandon Hensley, Alan Kogut
https://arxiv.org/abs/2509.03611

Statistical Analysis of PAHs as a Tracer of Anomalous Microwave Emission Using DIRBE Data
We use archival data from the Diffuse Infrared Background Experiment (DIRBE) to map the polycyclic aromatic hydrocarbon (PAH) 3.3 $μ$m emission feature and analyze its correlation with AME in 98 compact sources identified by the Planck collaboration. We find that while FIR thermal dust emission continues to be a better tracer of AME in most of the considered regions, 17% of the AME sources are better correlated with emission from small PAHs as traced by DIRBE. Furthermore, of the 27 sources wh…

Dynamical Response of Deformable Microchannels under Pressure-Driven Flow of Aqueous Polymer Solutions
Sampad Laha, Siddhartha Mukherjee, Suman Chakraborty
https://arxiv.org/abs/2509.21343

Dynamical Response of Deformable Microchannels under Pressure-Driven Flow of Aqueous Polymer Solutions
Microfluidic channels are integral to biomedical technology and process engineering, offering versatility in handling fluids with complex properties, often a combination of viscous and elastic attributes. Despite significant advancements in understanding small-scale fluid-structure interactions, however, experimental insights on the flow of complex fluids in deformable microchannels remain limited. Here, we present controlled experiments using polymer solutions as model viscoelastic fluids to e…