Tag

Constraints

All articles tagged with #constraints

games-and-puzzles2 years ago•4 min saved

"Cracking the Clues: NYT Crossword Answers Unveiled for Oct. 13, 2023"

The New York Times crossword puzzle for October 13, 2023, featured a grid with unique constraints, challenging the puzzle maker to create quality fill. Tricky clues included references to matches at a party, pitching coach as a voice teacher, and mermaids having exactly 10 digits. The puzzle also highlighted interesting facts, such as Costco selling more hot dogs than all Major League Baseball stadiums combined. Additionally, the article mentioned an Easy Mode newsletter offering more accessible clues for those who find Friday puzzles difficult.

via The New York Times|

#constraints #crossword #easy-mode

science-and-astronomy2 years ago•4 min saved

Unveiling the Secrets of Dark Matter with 'Hidden' Photons

Scientists from the California Institute of Technology (Caltech) have developed a new method to detect hidden "dark photons," a potential candidate for dark matter. Dark matter, which makes up around 85% of the matter in the universe, remains invisible due to its weak or nonexistent interaction with light. Dark photons, theorized to possess mass, could explain the heating of the early universe and the structure of the cosmic web. The researchers used quantum-limited amplifiers and conducted their search at extremely low temperatures, setting new constraints on the characteristics of dark photons. Although no dark photons were detected, this approach could aid in future dark matter searches.

via Space.com|

#constraints #dark-matter #dark-photons

physics2 years ago•3 min saved

Advancements in Dark Matter Research: From Ionization Signals to Neutrino Detectors

The PandaX experiment, located at the China Jinping Underground Laboratory, has set new constraints on the search for light dark matter using ionization signals. By focusing on the ionization signal (S2) in dual-phase xenon detectors, the researchers were able to reduce the energy threshold and derive constraints for light dark matter particles. Although no significant excess was observed, the constraints delineate a mass range for various types of dark matter interactions. These findings provide the most stringent constraints yet and could inform future searches for light dark matter using dual-phase xenon detectors. The PandaX experiment continues to collect data and improve its sensitivity in the search for dark matter.

via Phys.org|

#constraints #dark-matter #ionization-signals

physics2 years ago•7 min saved

Quantum Spin Experiment Tests Gravity's Influence.

Researchers from the University of Science and Technology of China have conducted an experiment to search for an interaction between a particle's intrinsic quantum spin and Earth's gravitational field. Although no evidence for this interaction was found, the search yielded strong constraints that have implications for the existence of hypothetical forces of nature and for the origin of the matter-antimatter asymmetry of the Universe. The USTC experiment is mainly sensitive to the strength with which gravity couples to neutron spins, and the team's measurements establish the most stringent constraint on any coupling of intrinsic spin to gravity.

via Physics|

#constraints #experiments #gravity