Tootfinder

🌍🛰️ How do NRENs & RRENs support Earth Observation research?
At our April infoshare with the Group on Earth Observations (GEO), RedCLARA & ASREN, we explored how R&E networks enable Earth Observation research, supporting data access, policy, training, and cross-border collaboration.
Daniela Brauner also shared these insights at GEO Global Forum 2025 last week.
📅 Don’t miss Part 2 of the infoshare series on 27 May!
🔗 Register today:

Infoshare Series on Earth Observations Support Through NRENs - Part 2

I dreamt last night that I was in Glasgow for a concert and a massive power failure occurred. There was no electricity and all electronics were fried - radio, phones, internet, nothing working except some very old cars with no electronic systems.
We heard rumours that either the Earth had been hit by an EMP pulse from a cosmic event, or maybe this was more local and was caused by a weapon of some kind.
Police were out on horseback telling us to stay calm but had no info. /1

Minimum-hop Constellation Design for Low Earth Orbit Satellite Networks
Chirag Rao, Eytan Modiano
https://arxiv.org/abs/2506.11995 https://

Minimum-hop Constellation Design for Low Earth Orbit Satellite Networks
We consider a Low Earth Orbit (LEO) satellite network with each satellite capable of establishing inter-satellite link (ISL) connections for satellite-to-satellite communication. Since ISLs can be reoriented to change the topology, we optimize the topology to minimize the average shortest path length (ASPL). We characterize the optimal ASPL ISL topology in two families of topologies, 1) vertex-symmetric in which the ISL connections at a satellite node represent a motif that is repeated at all o…

China has suspended almost all exports since April 4 of seven kinds of #rare #earth metals,
as well as very powerful magnets made from three of them.
The halt has caused increasingly severe shortages that threaten to close many factories in the United States and Europe.

What to Know About China’s Halt of Rare Earth Exports
Since early April, China has stopped almost all shipments of critical minerals that are needed for cars, robots, wind turbines, jet fighters and other technologies.

I think the last time I bought a manga was in 2018ish. It was time to break the curse.

A composition-informed search for large-scale anisotropy with the Pierre Auger Observatory
G. Golup (for the Pierre Auger Collaboration)
https://arxiv.org/abs/2507.08564

A composition-informed search for large-scale anisotropy with the Pierre Auger Observatory
The large-scale dipolar structure in the arrival directions of ultra-high-energy cosmic rays with energies above $8\,$EeV observed by the Pierre Auger Collaboration is a well-established anisotropy measurement. This anisotropy is understood to be of extragalactic origin, as the maximum of the dipolar component is located ${\sim}115^\circ$ away from the Galactic Center. Cosmic rays interact with background radiation and magnetized regions on their path from their sources to Earth. These interact…

Physical properties of $R$Co$_{2}$Al$_{8}$ ($R=$ La, Ce, Pr, Nd and Sm) single crystals: an emerging structure-type for anisotropic Kondo lattice studies
Fernando A. Garcia, Sushma Kumari, Juan Schmidt, Cris Adriano, Aashish Sapkota, Paul C. Canfield, Rebecca Flint, Raquel A. Ribeiro
https://arxiv.org/abs/2506.10905

Physical properties of $R$Co$_{2}$Al$_{8}$ ($R=$ La, Ce, Pr, Nd and Sm) single crystals: an emerging structure-type for anisotropic Kondo lattice studies
Systematic investigations of rare-earth ($R$) based intermetallic materials is a leading strategy to reveal the underlying mechanisms governing a range of physical phenomena, such as the formation of a Kondo lattice and competing electronic and magnetic anisotropies. In this work, the magnetic, thermal and transport properties of $R$Co$_{2}$Al$_{8}$ ($R=$ La, Ce, Pr, Nd and Sm) single crystals are presented. LaCo$_{2}$Al$_{8}$ is characterized as a Pauli paramagnet and transport measurements, w…

Went to the final dress rehearsal of Saul at Glyndebourne yesterday, and it was **amazing**: https://www.youtube.com/watch?v=euczL6jS8UA

Weekend #Plankton Factoid 🦠🦐
The new Surface Water and Ocean Topography (SWOT) satellite is crazy accurate. It can measure ocean altimetry to a mm, imaging internal waves and small sub eddies (rotating mixing zones). Tiny changes in height happen when water swirls (try it in a sink) with greater height at the edges due to centripetal force. These may be even more important for temperature &a…

On the three laws of earthquake physics
A. V. Guglielmi, A. D. Zavyalov, O. D. Zotov, B. I. Klain
https://arxiv.org/abs/2506.06504 https://

On the three laws of earthquake physics
The paper provides a synoptic overview of a series of works carried out by a group of researchers at the Institute of Physics of the Earth RAS with the aim of finding new approaches to the problems of earthquake physics. The fundamental laws of Omori, Gutenberg-Richter and Bath have served as a constant support and reference point in the course of many years of research. The concept of the tectonic earthquake triad as a natural trinity of foreshocks, main shocks and aftershocks is used in the a…