UK's Cambridge University halts fossil fuel funding
Britain's Cambridge University confirmed on Monday that it has adopted a moratorium on new funding from fossil fuel companies after a campaign from students and academics.
Britain's Cambridge University confirmed on Monday that it has adopted a moratorium on new funding from fossil fuel companies after a campaign from students and academics.
Other
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Diamond is the strongest material known. However, another form of carbon has been predicted to be even tougher than diamond. The challenge is how to create it on Earth.
Analytical Chemistry
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64
Researchers from IMDEA Materials Institute and the Technical University of Madrid (UPM) have developed an innovative digital twin that enables real-time analysis of composite materials manufacturing.
Analytical Chemistry
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Around one in five British people of working age (16-64) are now outside the labor market. Neither in work nor looking for work, they are officially labeled as "economically inactive."
Social Sciences
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Materials scientists at Rice University are shedding light on the intricate growth processes of 2D crystals, paving the way for controlled synthesis of these materials with unprecedented precision.
Nanomaterials
Mar 15, 2024
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8
For 30 total minutes in February, NASA lit a beacon on the moon—successfully testing a sophisticated positioning system that will make it safer for Artemis-era explorers to visit and establish a permanent human presence ...
Space Exploration
Mar 14, 2024
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24
When it comes to nurturing their young, mother chimpanzees go the extra mile, according to a new study. Using 10 years of observational data on wild chimpanzees, researchers found that while adults often play, and young chimps ...
Plants & Animals
Mar 14, 2024
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15
Chlorophyll a fluorescence (ChlF) has been a pivotal tool in understanding plant photochemistry, offering insights into the energy transfer processes within chloroplasts and the efficiency of Photosystem II (PSII). Researchers ...
Molecular & Computational biology
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1
Tiny particles like pollen grains move constantly, pushed and pulled by environmental forces. To study this motion, physicists use a "random walk" model—a system in which every step is determined by a random process. Random ...
Mathematics
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0
83
In 648 BCE, the Greek poet Archilochus wrote that "nothing can be surprising any more or impossible or miraculous, now that Zeus, father of the Olympians has made night out of noonday, hiding the light of the gleaming sun."
Archaeology
Mar 12, 2024
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12
Time is a component of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify the motions of objects. Time has been a major subject of religion, philosophy, and science, but defining it in a non-controversial manner applicable to all fields of study has consistently eluded the greatest scholars.
In physics as well as in other sciences, time is considered one of the few fundamental quantities. Time is used to define other quantities – such as velocity – and defining time in terms of such quantities would result in circularity of definition. An operational definition of time, wherein one says that observing a certain number of repetitions of one or another standard cyclical event (such as the passage of a free-swinging pendulum) constitutes one standard unit such as the second, is highly useful in the conduct of both advanced experiments and everyday affairs of life. The operational definition leaves aside the question whether there is something called time, apart from the counting activity just mentioned, that flows and that can be measured. Investigations of a single continuum called spacetime brings the nature of time into association with related questions into the nature of space, questions that have their roots in the works of early students of natural philosophy.
Among prominent philosophers, there are two distinct viewpoints on time. One view is that time is part of the fundamental structure of the universe, a dimension in which events occur in sequence. Time travel, in this view, becomes a possibility as other "times" persist like frames of a film strip, spread out across the time line. Sir Isaac Newton subscribed to this realist view, and hence it is sometimes referred to as Newtonian time. The opposing view is that time does not refer to any kind of "container" that events and objects "move through", nor to any entity that "flows", but that it is instead part of a fundamental intellectual structure (together with space and number) within which humans sequence and compare events. This second view, in the tradition of Gottfried Leibniz and Immanuel Kant, holds that time is neither an event nor a thing, and thus is not itself measurable nor can it be travelled.
Temporal measurement has occupied scientists and technologists, and was a prime motivation in navigation and astronomy. Periodic events and periodic motion have long served as standards for units of time. Examples include the apparent motion of the sun across the sky, the phases of the moon, the swing of a pendulum, and the beat of a heart. Currently, the international unit of time, the second, is defined in terms of radiation emitted by caesium atoms (see below). Time is also of significant social importance, having economic value ("time is money") as well as personal value, due to an awareness of the limited time in each day and in human life spans.
This text uses material from Wikipedia, licensed under CC BY-SA