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The research performed is dedicated to the problem of energy efficiency analysis of modern delivery drones. 12 models are chosen to provide a statistical calculations of the average ratio of mass and flight range of the drone. The method of least squares is used to analyze trends. The conclusion is made that the most successful companies apply the similar ratio of mass and flight range. The most successful drones of such companies are able to carry from 1.3 to 2.27 kg of cargo and have a flight range from 10 to 24 km. That allows to judge about the energy efficiency of these devices.

Annotation. In most cases, multifunctional robots used both in industry and in the home environment to facilitate human labor have a common problem, which is a lack of autonomy and self-learning. This does not mean that it is impossible to implement self-learning within the operation of these machines, but most often such technical units function according to a specific algorithm, without deviating from its principles, even if this may lead to better results. First of all, a clear adherence to the program, in accordance with the acceptable quality of the final result, is put at the forefront. However, when working with technical units that do not depend on clear industrial or household algorithms, it is allowed to use an individual approach to the implementation of management processes. This work is devoted to the construction of the concept and principles of implementing voice control of a mobile robot for performing movement tasks.

The article is devoted to the Constitution of Brazil of 1824, the first in the history of this country. The political structure of the Brazilian Empire described in the article was based on this Constitution, which was in force from its adoption until the proclamation of the First Brazilian Republic (1889). The article analyzes the tasks that stood at the creation of the Constitution and the main changes made to the state structure of Brazil after the law was initiated. It is emphasized that, although the Imperial Constitution did not solve all the problems in Brazilian society, it was the first to identify the issues to be resolved, and that the monarchy lasted longer in Brazil than successive Republican and dictatorial regimes, including thanks to the basic law of the country in the edition of 1824.

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