Anatole France. The most famous aphorisms

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APHORISMS OF FAMOUS PEOPLE
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Aphorisms of famous people. Anatole France

Aphorisms of famous people

Free library / Aphorisms of famous people

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Anatole France. The most famous aphorisms

In the darkness that surrounds us, the scientist bangs his forehead against the wall, while the ignoramus sits quietly in the middle of the room.
True love lives on desire and feeds on deceit. They truly love only what they do not know.
Sooner or later, curiosity becomes a sin, which is why the devil is always on the side of scientists.
Creating a world is easier than understanding it.
Only the poor pay in cash, not because they are more virtuous, but because they are denied credit.
Only a free citizen has a fatherland; a slave, a serf, a subject of a despot have only a homeland.
The world has two axes: love and hunger.

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Special electrodes for battery operation in cold weather 26.06.2022

It is known that temperatures below the freezing point of water have a very detrimental effect on the basic parameters of lithium-ion batteries. In the context of electric cars and other vehicles, this means shorter travel distances, longer charging times, problems with regenerative braking systems, and more. Therefore, engineers and scientists involved in the development of new batteries pay great attention not only to increasing their capacity, but also to ensuring uninterrupted operation in extreme temperatures.

Some automakers, notably Ford, equip their car batteries with temperature sensors and heaters that keep the battery temperature within acceptable limits. At the same time, part of the battery energy is spent on heating them, which reduces the travel range of an electric car. Other battery manufacturers use special electrolytes that can operate at sub-zero temperatures.

In the same area, there is a group that includes scientists from several Chinese scientific institutions. They conducted research, the results of which showed that one of the vulnerable components of the battery, responsible for the loss of capacity when the temperature drops, is the anode, one of the battery's two electrodes. As a rule, anodes are made of graphite, which has a flat, smooth surface. So Chinese scientists started experimenting with various alternatives and eventually came across a very promising solution.

The scientists took the composite material ZIF-67 (cobalt-containing zeolite imidazolate framework) and heated it to a high temperature, resulting in the formation of 12-sided carbon nanospheres. These tiny structures have a very developed surface, in addition, they have excellent electrical conductivity. By pressing the resulting material, the researchers made a coin-shaped anode for a battery with a lithium metal cathode.

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Scientists believe that the implementation of the results of their work can significantly expand the functionality of lithium-ion batteries in extreme environmental conditions. And not only electric cars, but also drones for various purposes, spacecraft and much more can benefit from this.

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