No worries, go catch your flight, a robot is parking your car

Many air travelers, whether frequent or infrequent, find that boarding, checking luggage and clearing documents at busy airports are not as stressful as one more experience—trying to find a parking space.


SLAP: Simultaneous Localization and Planning for autonomous robots

Researchers at NASA Jet Propulsion Laboratory (JPL), Texas A&M University, and Carnegie Mellon University recently carried out a research project aimed at enabling simultaneous localization and planning (SLAP) capabilities ...


MELT 3-D printer designed for use in microgravity

Europe's first 3D printer designed for use in weightlessness, printing aerospace-quality plastics, has won the prestigious Aerospace Applications Award from design-to-manufacturing specialist TCT Magazine.

Computer Sciences

Recognizing the partially seen

When we open our eyes in the morning and take in that first scene of the day, we don't give much thought to the fact that our brain is processing the objects within our field of view with great efficiency and that it is compensating ...


'Robotic skins' turn everyday objects into robots

When you think of robotics, you likely think of something rigid, heavy, and built for a specific purpose. New "Robotic Skins" technology developed by Yale researchers flips that notion on its head, allowing users to animate ...


Despite digital revolution, distance still matters

Even when people have well-connected social networks beyond their home cities and across state lines, they are still most frequently interacting with people who are very geographically near.

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Space is the boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of the boundless four-dimensional continuum known as spacetime. In mathematics spaces with different numbers of dimensions and with different underlying structures can be examined. The concept of space is considered to be of fundamental importance to an understanding of the universe although disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework.

Many of the philosophical questions arose in the 17th century, during the early development of classical mechanics. In Isaac Newton's view, space was absolute - in the sense that it existed permanently and independently of whether there were any matter in the space. Other natural philosophers, notably Gottfried Leibniz, thought instead that space was a collection of relations between objects, given by their distance and direction from one another. In the 18th century, Immanuel Kant described space and time as elements of a systematic framework which humans use to structure their experience.

In the 19th and 20th centuries mathematicians began to examine non-Euclidean geometries, in which space can be said to be curved, rather than flat. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean space provides a better model for explaining the existing laws of mechanics and optics.

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