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Air pressure is the weight of the air around us. When there is a period of low pressure, a barometer detects this and displays it with the needle. This reading is showing the weight of the air. It normally rains during a period of low pressure, so if the needle on the barometer is pointing to low pressure or rain, you can predict what the weather will be like in the following days. Hope this answers your question.
What else can I help you with?
Does a mercury barometer or aneroid barometer measure air pressure?
mercury has a sudden fall and then the barometter measure it and when i mean by fall i mean air pressure so yeah it's cool I knoe it doesn't make sense but Im just writing this anyway. Even though it's pure glorius silly you know what. I PUT THAT WORD BUT THEY WON'T LET ME POST THIS STUPID ANSWER
What did the first barometer look like?
The first barometer was a mercury barometer invented by Evangelista Torricelli in 1643. It consisted of a glass tube filled with mercury inverted in a dish of mercury. As atmospheric pressure changed, the mercury level in the tube would rise or fall, allowing for the measurement of air pressure.
Which clouds develop when barometric pressure falls and rains begins to fall?
nimbostratus clouds
Why on a cloudless day the sky will usually appear milky white before it rains and a deep blue after it rains?
its the clouds
What is an aneroid barometer called?
Well, an aneroid barometer, is called an aneroid barometer- but, a barometer measures air pressure, and an aneroid barometer is a barometer that contains no liquid.
When it rains?
It usually rains in the winter, fall and spring.
What time of year is it best to trim a coastline oak?
For trimming coastline oak best time is after the end of spring rains and before the fall rains begin.
What will hot air do to a barometer?
The air will become lighter causing the barometer to fall. the opposite will occur for cold air.
Does fish fall from the sky when it rains?
No, fish do not fall from the sky when it rains. This is a myth known as "fish rain" and is not scientifically accurate.
What is the duration of Before the Rains?
The duration of Before the Rains is 1.63 hours.
When was Before the Rains created?
Before the Rains was created on 2008-07-22.
What instrument must you tap before reading the barometer on it?
do you have to tap a barometer daily to get correct reading
How many rain drops fall when it rains?
A lot
How does a tree live in salt water?
By the rains that fall
What are the effect of heavy rains on human settlement?
their houses fall down
If Torricelli had drilled a little hole at the top of a glass tube holding his mercury column what would have happened to his barometer?
He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.
Is Knott's Berry Farm dangerous after it rains?
yes it is because you can slip and fall
