Dorian's floodwaters trap people in attics in North Carolina

A weakened Hurricane Dorian flooded homes on North Carolina's Outer Banks on Friday with a ferocity that took even storm-hardened residents by surprise, forcing people to retreat to their attics. Hundreds were feared trapped ...

Mathematicians develop new statistical indicator

Most of us know this phenomenon only too well: when it's hot outside, you feel the urge for a cooling ice cream. But would you have thought that mathematics could be involved?

Opinion: Hitting turbulence? Aviation and the climate crisis

In the U.K., there is a legal commitment to reducing the net carbon account for all six greenhouse gases by 80 percent (1990-2050) under the Climate Change Act 2008, and recently this target has been raised to 100 percent. ...

Can we still have fun if the UK goes carbon neutral?

Will Britain going carbon neutral mean no more fun? Experts from the University of Surrey have urged local policy makers to put in place infrastructure that will enable people to enjoy recreation and leisure while keeping ...

Making the best of sparse information

New findings reported by LMU researchers challenge a generally accepted model of echolocation in bats. They demonstrate that bats require far less spatial information than previously thought to navigate effectively.

Macroscopic electron quantum coherence in a solid-state circuit

A team of researchers at the Centre de Nanosciences et de Nanotechnologies (C2N, CNRS/Univ. Paris-Saclay) has experimentally achieved the coherent propagation of electrons in circuits over macroscopic distances through a ...

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Distance

Distance (or farness) is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, or an estimation based on other criteria (e.g. "two counties over"). In mathematics, a distance function or metric is a generalization of the concept of physical distance. A metric is a function that behaves according to a specific set of rules, and provides a concrete way of describing what it means for elements of some space to be "close to" or "far away from" each other.

In most cases, "distance from A to B" is interchangeable with "distance between B and A".

This text uses material from Wikipedia, licensed under CC BY-SA