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22 articles from ScienceDaily

A step towards quantum gravity

Solving Einstein's equations by using quantities that apply across all space and time coordinates could enable physicists to eventually find their 'white whale': a quantum theory of gravity.

Concise synthesis of pleurotin

Chemists report a concise synthesis of pleurotin by way of the Diels-Alder reaction and a radical epimerization. Their late-stage intermediate intersects a milestone 1988 synthesis, reducing the total number of steps needed. The new method could yield an expanded family of pleurotin-like anticancer screening candidates which, down the line, may be useful to pharmaceutical companies looking to...

New tools can operationalize equity in 239 e-scooter and bike share programs across the U.S.

Shared micromobility programs for e-scooters and bike share are becoming more common each year. How can we make sure they aren't just being used for fun, but they're also being prioritized for those who need a quick, affordable and accessible way to get around? A team of researchers has collected documentation about equity requirements from 239 shared micromobility programs across the U.S. and...

Brightest stars in the night sky can strip Neptune-sized planets to their rocky cores

Why are Neptune-sized planets rare among exoplanets discovered to date? A 'warm Neptune' recently found by astronomers around a bright blue A-type star provides a clue. Astronomers have proposed that gas giants like Neptune would be stripped of their gas in close orbits around a star -- the limited region current exoplanet-finding techniques are able to sample. The warm Neptune is just outside the...

Electrons moving inside gold: Optical microscope experiment strategy

Engineers have developed an experimental strategy to control and observe the chemical reaction of a single nanocatalyst using an optical microscope -- Expected to contribute to catalyst design based on accurate understanding of the photocatalytic reaction through an analysis method that helps understanding the electron excitation phenomenon and transition path.