Why do sunflowers follow the sun? Detailed answer

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Why do sunflowers follow the sun? Detailed answer

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Why do sunflowers follow the sun?

It has long been known that sunflowers during the day are able to turn after the Sun. In other plants with the same properties, this movement is provided by special leaf pads, but sunflowers do not. Recently, scientists have found that the sunflower uses the mechanism of uneven stem growth: at night, the western part of the stem elongates more strongly, so in the morning the plant "looks" to the east, and during the day the eastern part of the stem grows more intensively, gradually turning the top to the west. When growth stops, the flower remains directed only to the east. This also makes sense - this orientation allows the sunflower to warm up faster in the morning and thereby attract more pollinators.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Why is there fever?

The first thing a doctor or mom does when you feel unwell is take your temperature to see if it's high.

Our body averages around 37°C when we are healthy. When sick, the temperature rises, and we call it a fever. Fever accompanies not every disease, but most often it is.

The doctor or nurse usually takes the temperature twice a day, marking it on a special chart in order to better track the rises and falls. This card often helps the doctor understand what you are sick with. After all, each disease has its own "temperature curve".

Unfortunately, we still do not know what fever is. Although it is known that it helps to fight the disease, forcing our organs to work more intensively. Our body produces a lot of hormones, enzymes and blood cells. Hormones and enzymes are indispensable substances, they affect the performance of our body. New blood cells are better at destroying harmful microbes. Blood circulation speeds up, breathing quickens, and our body gets rid of waste products better.

But a person cannot bear the heat for very long. When it lasts 24 hours, the protein that makes up the tissues of our body begins to break down. And since protein is vital, heat is too "expensive" a way to fight the disease.

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Random news from the Archive

SONY Unveils DVD Burner with Internet Access 23.04.2003

Sony has introduced a new digital recorder equipped with a DVD drive and 80 GB hard drive called the NDR-XR1.

This device differs from its counterparts in that it can connect to the Internet via a broadband channel. In addition, the NDR-XR1 is equipped with a built-in browser that allows the user to browse the web using a TV connected to this unit.

It's not so easy to find a suitable name for the NDR-XR1, the set of functions that this device has is extremely large. It allows you to record TV programs on the built-in hard drive, a signal from a camcorder via the DV input, as well as images from Memory Stick media. Of course, all this can then be rewritten to DVD discs. In addition to being able to read DVD-R/RW, DVD Video and many CD formats, the NDR-XR1 can burn DVD-R/RW discs. Through the Internet, the NDR-XR1 can connect to special servers containing TV programs, making it easy to automatically program it to record specific TV broadcasts.

In addition, the user will be able to control the NDR-XR1 via the Internet using his mobile phone, which must also have access to the Network. In general, this device can do almost everything related to playing and recording video and TV programs.

Perhaps its only drawback is its high price, which is about $1200.

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