Like a well-trained soldier, a white blood cell uses specialized abilities to identify and ultimately destroy dangerous intruders, including creating a protrusion to effectively reach out, lock-on, probe, and possibly attack ...
Cell & Microbiology
Mar 16, 2021
0
26
Information is encoded in data. This is true for most aspects of modern life, but it is also true in most branches of contemporary physics, and extracting useful and meaningful information from very large data sets is a key ...
General Physics
Mar 3, 2021
0
11
Without electronics and photonics, there would be no computers, smartphones, sensors, or information and communication technologies. In the coming years, the new field of phononics may further expand these options. That field ...
Nanomaterials
Mar 1, 2021
0
431
The widespread use of high-speed and high-energy weapons in modern warfare has led to an increasing incidence of explosive injuries. For such wounds as well as those incurred in disasters and accidents, severe hemorrhage ...
Biochemistry
Feb 16, 2021
0
45
Albert Einstein's theory of general relativity profoundly changed our thinking about fundamental concepts in physics, such as space and time. But it also left us with some deep mysteries. One was black holes, which were only ...
Astronomy
Jan 13, 2021
8
339
An especially counter-intuitive feature of quantum mechanics is that a single event can exist in a state of superposition—happening both here and there, or both today and tomorrow.
Quantum Physics
Dec 18, 2020
2
773
Large objects, such as baseballs, vehicles, and planets, behave in accordance with the classical laws of mechanics formulated by Sir Isaac Newton. Small ones, such as atoms and subatomic particles, are governed by quantum ...
Quantum Physics
Nov 17, 2020
3
783
The second law of thermodynamics delineates an asymmetry in how physical systems evolve over time, known as the arrow of time. In macroscopic systems, this asymmetry has a clear direction (e.g., one can easily notice if ...
If a tree falls in a forest and no one is there to hear it, does it make a sound? Perhaps not, some say.
Quantum Physics
Aug 24, 2020
20
1850
The geometry of an object indicates its shape or the relationship of its parts to each other. Did you know that the electrons in solids also have geometric structures? In quantum mechanics, an electron in solids takes the ...
Quantum Physics
Aug 5, 2020
0
72
