St. Matthew is the patron saint of civil servants – making the Washington, D.C., church bearing his name a fitting venue for presidents, both past and present.
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Articles on mass
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Measurement and standards are at the heart of how we trade commodities and measure wealth. So what happens now that the planet’s most critical standard has been completely overhauled?
Gravity exists because the universe is full of 'stuff' – here's how it came to be.
Today marks one of the biggest shake-ups in the history of measurement. But the new standards on how we define units of mass, length, time and so on are not easy to explain.
Many young Catholics are moving away from their faith and joining the growing number of the religiously unaffiliated. The missionary group FOCUS is evangelizing on campuses, though there are concerns.
The international prototype kilogram keeps changing weight so scientists have come up with a new way to calculate.
To stay up, the bird must overcome gravity with a force called 'lift'.
Imagine the Earth pulling everything it is made up of, all of its mass, towards its centre. This happens evenly all over the Earth, causing it to take on a round shape.
We talk about mass all the time but what is it that actually gives an object mass? And why do some things have mass and others have no mass at all?
The Nobel Prize-winning research on neutrinos is expected to push the boundaries of science and technology.
Top contributors
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Professor of Avian Behavioural Ecology, Macquarie University
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Emeritus Professor of Analytical Chemistry, UNSW
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Senior Lecturer in Physics, University of Hull
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Postdoctoral fellow, UNSW
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Professor of Physics, University of the Witwatersrand
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Associate Professor in Physics, Monash University
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Assistant Professor of Religion, Springfield College
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Lecturer in Astrophysics, Lancaster University
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Professor and Dean, Faculty of Agricultural and Food Sciences, University of Manitoba
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Associate Professor of Public Theology and Director of The Bernardin Center, Catholic Theological Union
