Complete background suppression in intensity autocorrelation measurements is possible with x-ray second-harmonic generation while minimizing the impact on time resolution down to 1 attosecond
Letter: https://t.co/v6lZNF3cc6
Synopsis: https://t.co/yed6wvoGOq
New Article online: Three-dimensional super-resolution imaging with suppressed background via digital array modulation microscopy.
https://t.co/7iqEmhlWgA
Mastering 3D Rotations: The Essential Matrices!
Rotation around each axis beautifully captured:
Rx(φ): Tilting around X
Ry(θ): Pitching around Y
Rz(ψ): Yawing around Z
These are the fundamental building blocks of 3D transformations in computer graphics, robotics, physics, and beyond.
Sky-blue plasma toroid = electric fields made visible. Likely Ar/Kr/Xe mix: inert gases give clean, stable ionization. The glow shows electrons surfing field lines as plasma self-organizes into a torus, same physics behind auroras and fusion, sped up then slowed down to see.
Robotics has transformed welding speed.
Precision is great, but speed now matters just as much.
And conventional TIG still lags behind...
Balancing quality with speed, especially on pipe, pressure vessel, and roll welding projects.
This solution helps change that.
It delivers TIG-level quality with:
✅ Up to 300% faster travel speeds
✅ 4 lb/hr deposition rates
✅ A compact footprint that fits right into tight production environments
It seems fast enough without compromising on quality and works across carbon steel, stainless, duplex, Inconel, etc.
Aaaaaand the welds still pass X-ray, hardness, and corrosion tests.
Found this via Novarc Technologies
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Using an ensemble of strongly interacting nitrogen-vacancy centers in diamond, experiments provide direct evidence of a dynamical state known as the long-lived discrete time quasicrystal order in a quasi-periodically driven, many-body quantum system.
🔗 https://t.co/3FDPXL6lbC
Researchers at Max Planck created a space-time crystal of magnons at room temp, and filmed it. It repeats in space and time, pulsing forever with no energy input. Just nature, at “rest”. 4 years old
Our must-read papers of 2025 included experimental realization of discrete time quasicrystals and the computational power of random quantum circuits in arbitrary geometries. Check them out below 🧵