The universe has a finite age — 13.8 billion years to be exact. So if it had a beginning, why is it so difficult to say for sure whether it will have an end?
L’expertise universitaire, l’exigence journalistique
Articles sur Physics
Affichage de 141 à 160 de 453 articles
Without a magnetic field, the Moon’s surface is exposed to solar wind. These could have been depositing resources like water and potential rocket fuel on the Moon’s surface for billions of years.
Excluding, silencing and discouraging so many brilliant minds carries a very heavy cost, not just to the women directly impacted, but to all of humanity.
Gravity is something every person on Earth intuitively understands: It is what keeps you on the ground. But how come gravity pulls down, rather than pushes up? Einstein came up with the answer.
Olympic surfers are coming from around the world to compete in surfing’s Olympic debut. But where will the waves come from?
Science teaches you many skills. Even if you don’t plan for a science related career, including a science subject in your senior years can provide a good balance. But only if you’re interested.
The reason bigger objects in space are round and smaller ones aren’t boils down to gravity. And it’s the same reason mountains on Earth can only grow to a certain height
More than a century after publishing major papers in theoretical mathematics, German-born Emmy Noether continues to challenge and inspire mathematicians with her story and mathematical legacy.
The English astronomer and navigator Thomas Harriot died in 1621, leaving behind 8,000 pages of notes containing a trove of unpublished scientific discoveries.
‘Reality, including ourselves, is nothing but a thin and fragile veil’: a new interpretation of quantum physics says objects have no independent existence.
Riders in the 2021 Tour de France will ride more than 2,100 miles (3,400 km) over the 21 flat and mountainous stages of the race. And they will burn an incredible amount of energy while doing so.
Pitchers in Major League Baseball have been striking out more batters than ever, and some people say it’s because they’re adding sticky stuff to the balls.
Quantum microscopes reveal biological structures that would otherwise be impossible to see.
Fast radio bursts are the focus of a young and fascinating field of astronomy. Researchers just released data on more than 500 new bursts, quadrupling the total number of detected events.
This is the first time a measurement has been made of the entropy generated by telling time.
If emissions continue at their current pace, Antarctica will cross a threshold into runaway sea rise when today’s kids are raising families. Pulling CO2 out of the air later won’t stop the ice loss.
Scientists are working on ways to make lots of energy by converting matter into energy. The trick is keeping the process under control. One possibility is nuclear fusion – the Sun’s power source.
Electronics are not the only technology to have been miniaturized. Using the strange behavior of fluids in tiny spaces, microfluidic devices are critical to medicine, science and the modern world.
We first encountered the letter in 2019, when a reader shared it with us. In it, Einstein discusses bees, birds and whether new physics principles could come from studying animal senses.
If humanity wants to travel between stars, people are going to need to travel faster than light. New research suggests that it might be possible to build warp drives and beat the galactic speed limit.
Les contributeurs les plus fréquents
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Associate Professor, Philosophy of Science, The University of Melbourne
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Post Doctoral Research Associate, Centre for the Subatomic Structure of Matter, University of Adelaide
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University Distinguished Professor of Astronomy, University of Arizona
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Emeritus Professor, ARC Centre of Excellence for Gravitational Wave Discovery, OzGrav, The University of Western Australia
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Physicien, Professeur des Universités, Université Paris-Saclay
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Professor of Astrophysics, University of Sydney
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Professor of Nuclear Physics, Michigan State University
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Professor of Physics, University of Lynchburg
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Senior Lecturer in Physics, University of New England
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Professor & Head, School of Science & Mathematics, Mauritius Institute of Education
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Lecturer, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
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Professor of Quantum Physics and Quantum Technology, University of Sydney
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Professor, University of Sydney
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Lecturer, The University of Queensland
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Honorary senior lecturer, Australian National University
