One of the cornerstones of quantum theory is a fundamental limit to the precision with which we can know certain pairs of physical quantities, such as position and momentum. For quantum theoretical treatments, this uncertainty ...
What will the planet look like if climate change continues unabated? Experts have weighed in on consequences that include more destructive storms, flooded coastal cities, vulnerable animal species extinction, and severe drought. ...
Environment
Dec 03, 2019
0
11
The second law of thermodynamics states that the total entropy of an isolated system always tends to increase over time until it reaches a maximum. In other words, disorganization increases without outside intervention. Electrical ...
General Physics
Nov 27, 2019
2
1131
EPFL researchers, with colleagues at the University of Cambridge and IBM Research-Zurich, unravel novel dynamics in the interaction between light and mechanical motion with significant implications for quantum measurements ...
Quantum Physics
Oct 31, 2019
0
447
Venus is covered in a thick layer of clouds, one reason that it appears so bright in the sky. Ancient astronomers had a good idea of what (since Copernicus) we know as its orbital period; the modern measurement is that Venus ...
Space Exploration
Oct 21, 2019
1
136
The more specific climate scientists are about the uncertainties of global warming, the more the American public trusts their predictions, according to new research by Stanford scholars.
Earth Sciences
Oct 15, 2019
12
68
Quantum information relies on the possibility of writing messages in a quantum particle and reading them out in a reliable way. If, however, the particle is relativistic, meaning that it moves with velocities close to the ...
Quantum Physics
Sep 02, 2019
0
305
National or other emissions inventories of greenhouse gases that are used to develop strategies and track progress in terms of emissions reductions for climate mitigation contain a certain amount of uncertainty, which inevitably ...
Environment
Aug 19, 2019
1
7
Uncertainty in science is a good thing. Because here's how the scientific model works: you observe a phenomenon, then form a hypothesis about why that phenomenon is taking place, then test the hypothesis, which leads you ...
Astronomy
Aug 02, 2019
1
26
The relationship between atmospheric CO2 levels and climate change is often perceived as a controversial subject. While there's no real disagreement among climate scientists—around 90% fully agree that human activity is ...
Earth Sciences
Jul 03, 2019
0
1
