Try a quick experiment: Take two flashlights into a dark room and shine them so that their light beams cross. Notice anything peculiar? The rather anticlimactic answer is, probably not. That's because the individual photons ...
Quantum Physics
Feb 15, 2018
18
1704
It's a phenomenon many preschoolers know well: When you mix cornstarch and water, weird things happen. Swish it gently in a bowl, and the mixture sloshes around like a liquid. Squeeze it, and it starts to feel like paste. ...
General Physics
Oct 7, 2019
0
1845
We live in the age of big data, but most of that data is "sparse." Imagine, for instance, a massive table that mapped all of Amazon's customers against all of its products, with a "1" for each product a given customer bought ...
Computer Sciences
Oct 31, 2017
4
2632
Billions of years ago, in the center of a galaxy cluster far, far away (15 billion light-years, to be exact), a black hole spewed out jets of plasma. As the plasma rushed out of the black hole, it pushed away material, creating ...
Astronomy
Dec 24, 2019
25
886
(PhysOrg.com) -- For 27 years, the Concorde provided its passengers with a rare luxury: time saved. For a pricey fare, the sleek supersonic jet ferried its ticketholders from New York to Paris in a mere three-and-a-half hours ...
Engineering
Mar 16, 2012
13
0
Since its invention several millennia ago, concrete has become instrumental to the advancement of civilization, finding use in countless construction applications—from bridges to buildings. And yet, despite centuries of ...
Nanophysics
Apr 21, 2021
3
396
The quantum vibrations in atoms hold a miniature world of information. If scientists can accurately measure these atomic oscillations, and how they evolve over time, they can hone the precision of atomic clocks as well as ...
Quantum Physics
Jul 14, 2022
2
1629
Equiangular lines are lines in space that pass through a single point, and whose pairwise angles are all equal. Picture in 2D the three diagonals of a regular hexagon, and in 3D, the six lines connecting opposite vertices ...
Mathematics
Oct 4, 2021
0
1457
(Phys.org)—The point of no return: In astronomy, it's known as a black hole—a region in space where the pull of gravity is so strong that nothing, not even light, can escape. Black holes that can be billions of times ...
Astronomy
Sep 27, 2012
62
0
From airplane wings to overhead powerlines to the giant blades of wind turbines, a buildup of ice can cause problems ranging from impaired performance all the way to catastrophic failure. But preventing that buildup usually ...
Materials Science
Aug 31, 2018
1
247
