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Jun 13, 2024

Graphics Archive — Special Topics: Hyperbolic Geometry

Posted by in category: futurism

“Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.” — The Poincaré Conjecture.

“Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.”

- The Poincaré Conjecture photo credit : https://bit.ly/2KDYLoC

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Jun 13, 2024

Air Force chief of staff hedges on commitment to next-gen stealth fighter

Posted by in category: futurism

The Air Force top officer eluded confirmation that it would still field NGAD given the current and future budget restrictions plaguing the Defense Department.

Jun 13, 2024

Blue Origin, SpaceX, ULA win $5.6 billion in Pentagon launch contracts

Posted by in categories: military, space

Join our newsletter to get the latest military space news every Tuesday by veteran defense journalist Sandra Erwin.

The three companies will compete for orders over the contract period starting in fiscal year 2025 through 2029. Under the NSSL program, the Space Force orders individual launch missions up to two years in advance. At least 30 NSSL Lane 1 missions are expected to be competed over the five years.

Jun 13, 2024

Gravitational-Wave Memory May Illustrate Spacetime Symmetries

Posted by in category: physics

Observing gravitational-wave memory may help physicists test general relativity predictions about large-scale symmetries in the fabric of spacetime.

Jun 13, 2024

Adding Certainty to Plutonium’s Fission Yield

Posted by in category: energy

A first-of-its-kind measurement reveals the energy spectrum of the neutrons produced during the fission of plutonium, a common nuclear fuel component.

Jun 13, 2024

A Step toward Quantum Gases of Doubly Polar Molecules

Posted by in category: quantum physics

Researchers created an ultracold gas of molecules with strong magnetic dipoles, which may lead to new types of Bose-Einstein condensates.

Jun 13, 2024

Physicists report optical analog of Kármán vortex street

Posted by in categories: energy, physics

In a study published in Nature Communications, collaborating physicists from Singapore and the UK have reported an optical analog of the Kármán vortex street (KVS). This optical KVS pulse reveals fascinating parallels between fluid transport and energy flow of structured light.

Jun 13, 2024

Physicists use machine learning techniques to search for exotic-looking collisions that could indicate new physics

Posted by in categories: particle physics, robotics/AI

One of the main goals of the LHC experiments is to look for signs of new particles, which could explain many of the unsolved mysteries in physics. Often, searches for new physics are designed to look for one specific type of new particle at a time, using theoretical predictions as a guide. But what about searching for unpredicted—and unexpected—new particles?

Jun 13, 2024

Researchers tune Casimir force using magnetic fields

Posted by in category: physics

Research teams led by Prof. Zeng Changgan and Zhang Hui from the Hefei National Laboratory for Physical Sciences at the Microscale, the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences have achieved a reversible transition from the Casimir attraction to repulsion under magnetic field control by using a magnetic fluid as an intermediate medium. Their study is published in Nature Physics.

Jun 13, 2024

Quantum data assimilation offers new approach to weather prediction

Posted by in categories: mathematics, quantum physics

Data assimilation is a mathematical discipline that integrates observed data and numerical models to improve the interpretation and prediction of dynamical systems. It is a crucial component of Earth sciences, particularly in numerical weather prediction (NWP).

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