Good to know
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What is the difference between forecasting and hindcasting?
When meteorologists attempt to determine what weather will be in the future, this is called forecasting. However, when they attempt to determine what weather was like in the past, this is called hindcasting. So, hindcasting is the opposite of forecasting.
Although meteorologists wish that records of weather had been kept in full for at least a few millennia, it has been only in the last century that detailed records of the weather have been kept. Therefore, they need to hindcast the weather and they do so by using all sorts of information from fields such as archeology, botany, geology, literature, and art. These pieces of information from other fields that are used as a basis for drawing conclusions about what the weather must have been like at some point in the past are called proxies. -
Verbal and nonverbal communication
Usually, we use words to communicate with others, but sometimes we communicate without the use of words. When the communication happened without the use of words, this called nonverbal communication. So, nonverbal communication can refer to facial expressions such as smiling or frowning. It can also refer to movements of the head. One example of this is nodding the head to show agreement or shaking it to show the disagreement. Moreover, nonverbal communication can refer to hand gestures such as offering the hand to shake in greeting or waving the hand to say “hello” or “good-bye.”
So, communication is verbal if words are used, and it is nonverbal if words are not used. -
Formation of the Solar System
How our solar system and our planet were formed?
Our solar system and our planet of today were not like this five billion years ago. The solar system started most likely as a spinning cloud of gas and dust. After that, the vast majority of gas and dust in the cloud began clumping together to form our Sun, and some of the rest of the material began forming clumps that became the planets in our solar system, including our Earth. Moreover, as our planet came together, it formed into a globe with a layered structure. The layered structure ended up with the heavier material in the middle of the globe and the lighter material on the outside surrounding the heavier material.