Friedrich Ruckert. The most famous aphorisms

Free technical library

APHORISMS OF FAMOUS PEOPLE
Free library / Aphorisms of famous people / Friedrich Rückert

Aphorisms of famous people. Friedrich Rückert

Aphorisms of famous people

Free library / Aphorisms of famous people

Comments on the article

Friedrich Ruckert. The most famous aphorisms

They do not live twice, and there are many who cannot live even once.
If hope doesn't come true, never stop hoping.
How insignificant are you, man, with all your greatness, in comparison with the universe! How great you are: for all your insignificance, you are a particle of the universe.

We recommend interesting articles Section Aphorisms of famous people:

▪ Alexandre Dumas (father) Aphorisms

▪ Parmenides. Aphorisms

▪ Chuang Tzu. Aphorisms

▪ Random five aphorisms

See other articles Section Aphorisms of famous people.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

Random news from the Archive

The laser turns the dielectric into a conductor 06.04.2018

An international group of scientists for the first time theoretically described how the so-called Mott dielectrics will behave under the action of ultrashort and very powerful laser pulses and how the spectrum of radiation reflected from their surface should look like.

Calculations show that in this case the dielectric will turn into a conductor. In the future, this phenomenon can be used for electronics, studies of fast processes and quantum states in matter.

Dielectrics are substances that conduct electricity poorly, because they have few free electrons that can easily move and carry charge. In ordinary dielectrics, this is due to the peculiarities of the distribution of electrons over energy levels that arise in the field of the crystal lattice. This is described by one of the main sections of quantum physics - band theory.

Mott dielectrics differ from ordinary dielectrics in that current cannot flow in them for a completely different reason, due to the strong interaction between electrons. In them, the movement of electrons capable of creating a current is "interfered" by other electrons located on neighboring atoms. By their repulsion, they "lock" each electron on their atom and make the substance a dielectric. They are named after the English physicist Neville F. Mott, Nobel Prize winner in 1977, who in 1949 explained their occurrence. Mott dielectrics (as a rule, these are oxides of transition metals, for example, NiO) cease to conduct current when cooled, when the interaction between electrons becomes more significant.

Experiments on the effect of light on matter began about 20 years ago. But the need to take into account the interaction of electrons made it difficult to theoretically study the processes in Mott dielectrics. Therefore, up to now, single atoms or molecules have been considered in order to study the behavior of electrons in the orbitals of atoms. But no one has studied the behavior of the Mott dielectrics themselves in a superstrong light field. However, over the past five years, experimenters have begun to switch to solids, to crystals. Here the picture is much more complicated, since this is a multi-electron problem, where the interacting electrons affect the conductivity.

The simulated researchers investigated how such materials would respond to flashes from a high-power femtosecond laser and modeled what the spectrum of radiation reflected from a surface should look like, since its properties are affected by the characteristics of the material. Under the action of a strong alternating field of a laser beam incident on the surface of a Mott dielectric, the state of the electrons in it changes. Their kinetic energy increases and the material loses its dielectric properties. The process can be investigated using the so-called high harmonic spectroscopy.

The method consists in sending very short, tens or hundreds of femtoseconds (10-15 s) laser pulses with specified characteristics to the material. When the beam is reflected from the material, these characteristics change, including some of the photons acquiring dozens of times more energy and oscillation frequency than the photons of the initial pulse (this is called the generation of high optical harmonics). By changing the characteristics of the beam, one can judge the properties of the material.

Other interesting news:

▪ Detection of ultraweak radio waves using a laser

▪ The world's largest wave power plant will be built

▪ The most powerful solar power plant launched

▪ Miniature proximity sensor based on vein pattern

▪ iRobot Sentinel

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Spectacular tricks and their clues. Article selection

▪ article Occupational safety of certain categories of workers. Directory

▪ article How did pneumatic tires appear? Detailed answer

▪ article Angelica Amur. Legends, cultivation, methods of application

▪ article Typographic inks. Simple recipes and tips

▪ article A simple PTT for a bourgeois station. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews