How can you determine wind direction by wetting your finger and holding it up in the air?
Aaron AndersonWhen your finger is wet, it can be cooled more effectively by wind so the coldest side of the wet finger is where the wind is coming from.
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Leo ArensYou can determine wind direction by wetting your finger and holding it up in the air. The side of your finger that feels cooler is facing the direction from which the wind is coming.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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