"All Cretans are liars", said Epimenides, a Cretan. But this means that his statement must be a lie too. But then it is false that Cretans are liars and the statement must be true. So what now?
Mathematics
Jun 24, 2014
7
0
Last summer, a new age for high-temperature superconductivity was proclaimed—the nickel age. It was discovered that there are promising superconductors in a special class of materials, the so-called nickelates, which can ...
Superconductivity
Apr 27, 2020
0
3187
An amazing construction method for curved structures was developed at TU Wien (Vienna): With a flick of the wrist, flat grids become a 3-D shape.
Mathematics
Aug 24, 2020
0
771
Terahertz radiation is used for security checks at airports, for medical examinations and also for quality checks in industry. However, radiation in the terahertz range is extremely difficult to generate. Scientists at TU ...
Optics & Photonics
Jan 20, 2020
1
1293
Is it a computer program or a living being? At TU Wien (Vienna), the boundaries have become blurred. The neural system of a nematode was translated into computer code – and then the virtual worm was taught amazing tricks.
Engineering
Feb 6, 2018
0
489
A single particle has no temperature. It has a certain energy or a certain speed—but it is not possible to translate that into a temperature. Only when dealing with random velocity distributions of many particles does a ...
Quantum Physics
Dec 14, 2022
1
1865
There are different ideas about how quantum computers could be built. But they all have one thing in common: you use a quantum physical system—for example, individual atoms—and change their state by exposing them to very ...
Quantum Physics
Nov 26, 2023
8
116
Today, manufacturing strong magnets is no problem from a technical perspective. It is, however, difficult to produce a permanent magnet with a magnetic field of a specific pre-determined shape. That is, until now, thanks ...
Condensed Matter
Oct 25, 2016
6
3360
In science fiction stories about contact with extraterrestrial civilisations, there is a problem: What kind of propulsion system could make it possible to bridge the enormous distances between the stars? It cannot be done ...
Space Exploration
Dec 20, 2021
20
859
Electricity and magnetism are closely related: Power lines generate a magnetic field, rotating magnets in a generator produce electricity. However, the phenomenon is much more complicated: electrical and magnetic properties ...
General Physics
Sep 14, 2020
5
597
