What is a summer day and a tropical day? Detailed answer

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What is a summer day and a tropical day? Detailed answer

Big encyclopedia for children and adults

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What is a summer day and a tropical day?

Meteorologists call a summer day one during which the air temperature rises above 25 ° C, and a tropical day is one when the air temperature does not fall below 30 ° C.

Author: Mendeleev V.A.

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Machine for thinning flowers in gardens 02.05.2024

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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Microrobot colony management technology 25.04.2014

In the XNUMXst century, you won't surprise anyone with robots. Of course, the cyborgs we saw in science fiction films have not yet flooded the Earth, but robots can be completely different.

The famous science fiction writer Stanislav Lem in the novel "Invincible" described a pseudo-intelligent swarm of primitive tiny robots, acting as a single organism. Since each element individually was interchangeable, and the swarm as a whole was immune to damage to individual elements, such an "organism" was practically invulnerable.

It looks like the fairy tale is coming true. SRI International (Stanford Research Institute) has created a technology that allows you to control tiny microrobots. The technology was called Diamagnetic Micro Manipulation (DM3). It uses printed circuit boards to control miniature robots, which, in fact, are just magnetic plates. What the researchers did as a result can be seen in the video below.

The project is being implemented as part of the DARPA Open Manufacturing program. Miniature SRI robots can construct small structures using a variety of materials. The developers believe that their technology can be useful in the first place when creating electronic devices. Although it can be concluded from the video that microrobots are also capable of assembling mechanical structures.

Robots can only move on a specially prepared surface through the use of a magnetic field. Using diamagnets, scientists were able to implement the technology of controlling each robot individually. It is worth noting that, thanks to the simplest design, "bug" robots are able to move at speeds up to 35 cm / s. A "colony", including 73 such microrobots, can produce a total of 1386 movements in 1 second. It is also worth noting the high accuracy with which robots can work.

Of course, this is not the limit of this technology. SRI sees in the future entire mini-factories where such microrobots will assemble electronics, mechanisms, or perform some other types of work. Among the obvious advantages of the technology are its low cost, ease of manufacture of robots, as well as their easy interchangeability.

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