Are the timing of the seasons shifting? Detailed answer

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Are the timing of the seasons shifting? Detailed answer

Big encyclopedia for children and adults

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Are the timing of the seasons shifting?

In Europe, spring began to come on average six days earlier than 30 years ago. Many plants bloom up to four weeks earlier. The reason for this was the general climate change on the planet caused by global warming.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Why is deodorant so much less popular in East Asia than in Europe?

There are two versions of the ABCC11 gene that are common in the human population. Those of us who have at least one of two copies of the dominant version of the gene produce liquid earwax, while those of us with two copies of the recessive variant have solid earwax. Also, this gene is responsible for the production of proteins that remove sweat from the pores in the armpits, attracting odor-causing bacteria. People with hard earwax don't sweat like that, so they don't have odor problems and don't need to use deodorant. This category includes the majority of the population of East Asia, but very few Europeans.

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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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Optical fiber that works like the human nervous system 20.04.2022

Scientists from Singapore's Center for Disruptive Photonic Technology and the UK's Optoelectronics Research Center have created a working optical model of a neuron. To do this, they took advantage of the special properties of an amorphous alloy based on chalcogenides.

In fact, a new type of optical fiber was synthesized, capable of changing transparency. This makes it possible to provide conditions for the propagation of optical signals similar to those that exist in the human brain.

Using this property, the researchers achieved functionality that mimics the mechanism of signal propagation in axons and synapses, thereby proving that optical analogs of neurons can demonstrate functionality similar to the human brain.

The optical fiber for the experiment was made of amorphous glass, which is an alloy of gallium sulfide and lanthanum oxide. To emulate the functions of a chemical synapse, the fiber is alternately irradiated from the side with light of different wavelengths, causing a so-called photon synapse. As a result, scientists were able to reproduce the mechanism of chemical signal propagation in neurons.

In their work, researchers from Singapore have demonstrated a number of optical analogs of brain functions. Among them are the retention of the state of rest and the modeling of changes in the electrical activity in the nerve cell during its stimulation.

This study may contribute to increasing the speed and efficiency of traditional computer systems. With the advent of adaptation and learning mechanisms in new versions of computers, they will be able to process huge amounts of data with much less energy.

Modern computers simulating the work of nerve cells are 6-9 orders of magnitude less efficient than biological systems. For example, simulating a five-second brain activity takes 500 seconds of computer time and requires 1,4 megawatts of energy.

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