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Wind turbines affect the climate

03.05.2005

It is well known that the hydroelectric reservoir changes the climate in the surrounding area, and the thermal power plant, emitting carbon dioxide, affects the global climate. But now there is evidence that large wind farms, consisting of hundreds of windmills, can have a small but real impact on the climate of the surrounding area.

The height of modern wind turbines is up to 100 meters, the blade span is up to 50 meters, and even larger installations are being designed.

Computer simulations conducted at Duke University (USA) showed that large groups of windmills can increase wind speed near the ground by an average of 0,6 meters per second and increase air temperature by 0,7 degrees Celsius. At the same time, the evaporation of moisture from the soil will increase around the wind power plant by 0,3 millimeters per day.

All these data are averaged over 24 hours, and in the early morning the changes will be greater: the wind speed will increase by 1,5 meters per second in a few hours, and the temperature will increase by 2 degrees Celsius. The total capacity of the power plant of 44 generators is 30 megawatts.

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Marriage affects blood sugar 20.02.2023

An international team of scientists conducted a study in which scientists measured average blood sugar levels in older people. It turned out that life in marriage allows you to maintain a normal level of glucose in the blood.

The study examined the relationship between marital status, marital quality, and average blood glucose levels in older people. The participants were 3335 people aged 50 - 89 years, not suffering from diabetes.

For ten years, they asked if they were in a relationship and how their marital status had changed. They were also asked questions that would help to understand how warm and supportive the relationship between the subjects and their partners is.

According to the data obtained, when entering into marriage or partnership in the blood test, there was an improvement in such an indicator as glycated hemoglobin. It allows you to understand what was the level of glucose in the blood over the past few months. So, life in a couple led to a decrease in this indicator. And this is great, because a normal level of glycated hemoglobin reduces the risk of death. But without relationships, this figure grew.

Interestingly, blood glucose levels are significantly influenced by the fact of having a couple, and not by the quality of the relationship. Scientists have not yet found an explanation for this result, but perhaps someone underestimates the support of a partner.

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