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Biochar and nitrification inhibitor help cut ammonia losses while sustaining crop yields

Combining biochar and dicyandiamide in organic fertilizer reduces cumulative ammonia losses by 27.1% compared to conventional urea fertilization, maintaining crop productivity despite reduced mineral nitrogen input. The treatment also supports economic returns through reduced nitrogen-related environmental and health costs.

SourceShenyang Agricultural University Collaborative Journals·JournalAgricultural Ecology and Environment·TypeExperimental study·DateAug 13, 2026

Subcycle conservation law in strong-field ionization

Researchers have identified a subcycle conservation law between angular momentum and energy during strong-field ionization, as revealed by the analysis of correlated spectrum of angular momentum and energy. This law remains applicable down to the subcycle level, offering new understanding of light-matter interactions.

SourceUltrafast Science·JournalUltrafast Science·DateOct 30, 2024

Light-driven molecular motors light up

Scientists have successfully created two types of light-driven molecular motors that can both rotate and fluoresce in the same molecule. This achievement demonstrates that these motors can be designed to control various functions using light energy, paving the way for potential applications in biomedical imaging and cellular processes.

SourceUniversity of Groningen·JournalScience Advances·TypeExperimental study·DateNov 4, 2022

Why is an empty shampoo bottle so easy to knock over?

A physics professor and first-year physics major demonstrate how the center-of-mass of a nearly empty shampoo bottle affects its stability when placed on a tilted surface. The study reveals that the altitude of the center of mass is a nonlinear function of the liquid level, with lower levels resulting in higher altitudes.

SourceLehigh University·JournalThe Physics Teacher·DateMar 2, 2020

Colliding molecules and antiparticles

Researchers Marcos Barp and Felipe Arretche developed a model predicting rotational energy loss when positrons collide with molecules like CF4 and methane. The model agreed well with experimental results and could improve PET scanning techniques, providing new insights into matter-antimatter interactions.

SourceSpringer·JournalThe European Physical Journal D·DateDec 13, 2019

How to escape a black hole: simulations provide new clues about powerful plasma jets

Researchers have combined decades-old theories to provide insight into the driving mechanisms of plasma jets in black holes. The simulations describe how twisting magnetic fields and 'negative-energy' particles produce these powerful displays, allowing black holes to steal energy and propel it far from their event horizons.

SourceDOE/Lawrence Berkeley National Laboratory·JournalPhysical Review Letters·DateJan 24, 2019

Remote jets are clearer now

Astrophysicists develop model to test hypothesis about supermassive black holes and their impact on galaxy jets. The study suggests that part of the jet's power comes from the rotating black hole, which loses angular momentum as it emits energy. By measuring magnetic fields in jets, scientists can estimate this rotational energy loss.

The discovery of deceleration

Millisecond pulsars lose half of their rotational energy during mass-transfer process, explaining apparent age paradox and absence of sub-millisecond radio pulsars. This result is in agreement with current observations and helps resolve the 'turn-off' problem in stellar astrophysics.

SourceMax-Planck-Gesellschaft·JournalScience·DateFeb 2, 2012

Animated movie of ice

Swedish researchers used a computer to simulate ice melting after heating with a short light pulse. The simulation showed that the energy causes OH bonds to oscillate and eventually breaks bridging hydrogen bonds, leading to crystal collapse.

SourceWiley·DateJan 7, 2008

New understanding of hydrogen combustion reaction

A Cornell University research team studied the fundamental step in hydrogen combustion, finding that energy is released when newly formed water molecules are produced in excited vibrational and rotational levels. The study's results support new theoretical predictions, providing a breakthrough in understanding chemical reactions.

SourceCornell University·JournalScience·DateNov 1, 2000

Hopkins Study Reveals Key Details On How We Get Energy

Scientists at Johns Hopkins Medicine solved a major mystery surrounding energy production by determining the molecular structure of adenosine triphosphate synthase (ATP synthase). The discovery explains how cells produce ATP, the common currency of energy, and offers new insights into why people get less energetic with age.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateSep 15, 1998