Technique, industry, architecture - Railway transport. Locomotives. Crosswordist's Handbook

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Engineering, industry, architecture / Transport and communications / Railway transport. locomotives

(5)

TRACTOR

(6)

PUSHER - additional locomotive at the end of the train

(7)

GYROVOZ - mine locomotive

DREZINA

MOTOR CAR

MOTRISA

LOCOMOTIVE

(8)

LOCOMOTIVE

(9)

DIESEL LOCOMOTIVE - mine locomotive

(10)

LOCOMOTIVE

ELECTRIC LOCOMOTIVE

(11)

RAILCAR

(12)

GAS TURBO CARRIER

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In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

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Random news from the Archive

Crab and Shrimp Batteries 07.09.2022

Scientists from the American universities of Houston and Maryland have found a way to create batteries from recycled crab shells.

Now the most common type of batteries are lithium - they have a high energy storage density in a fairly compact size, but are very expensive to manufacture and can catch fire. In addition, they cause significant damage to the environment, for example, polypropylene and polycarbonate separators that are part of such batteries decompose for hundreds or thousands of years.

The team led by Liangbing Hu saw the promise in zinc batteries - this material is much more abundant in the earth's crust, and its extraction is cheaper. Scientists have already managed to create prototypes with high power density, and the technology turned out to be no more expensive than lead-acid batteries. The main disadvantage of such batteries is a rather short life, but scientists managed to solve this problem by making the device rechargeable and more reliable using a natural material called chitosan.

Chitosan is a chitin derivative that coats the cell walls of fungi, squid, and is most commonly found naturally on the exoskeletons of crustaceans, including crabs, shrimp, and lobsters. The shells of these animals can be easily obtained from seafood waste, which is discarded in large quantities.

The researchers assembled a prototype with a chitosan electrolyte interacting with a zinc electrode. It showed encouraging results during tests. The design of the battery has prevented the build-up of tentacles, dendrites that can degrade performance, and has shown "extraordinary cyclic stability", maintaining an efficiency of 99,7% over 1000 cycles when operating at a high current density of 50 mAh per square cm.

Thanks to environmentally friendly materials, about two-thirds of the battery will be quickly decomposed by bacteria, in particular the chitosan electrolyte, in just five months. The remaining zinc can be recycled.

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