Water vapour has lesser density than air particles. It may seem the opposite but water vapour has density of 0.013 kg/m^3 while density of air is 1.3 kg/m^3. So , more humidity would mean that more water vapour is present in the atmosphere as the water vapours displace air particles in the region meaning that density would decrease. Hope it helps!
Pressure is a force applied over an area. There is no requirement for a container as long as a force acts to press matter onto a surface. Atmospheric pressure is the force of gravity pulling the gas molecules in the atmosphere down onto the surface of the Earth. Although, you could also describe Earth as a container with gas in the atmosphere contained in an envelope around the planet by gravity.
I've never heard anyone argue that the Coriolis effect is not real. That criticism is usually saved for discussions of the Coriolis force and even then I'd argue that it depends on the context. There is certainly no such thing as a Coriolis force - ie a real force causing a real change in acceleration of a mass, but when calculating the trajectory of an object moving in a rotating frame of reference - like air masses on Earth - the rotating frame of reference definitely effects the apparent motion of the air. Physicists use terms like pseudo force or inertial force when discussing things like this. When doing the actual calculations that involve rotating frames of reference they do have to treat these apparent forces as if they were real in order to properly describe the motion. In the context of this video, the Coriolis effect is real in the sense that - from the rotating frame of reference of someone standing on the Earth - air masses moving along pressure gradients do turn to the right in the northern hemisphere.
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Outstanding video, thank you.
This helps. Thanks 👍
very good explanation here. It is probably the simplest explanation of our atmosphere out there.
How is humid air is less dense than dry air? Isn't humid air contained water molecules more than dry air?
Water vapour has lesser density than air particles. It may seem the opposite but water vapour has density of 0.013 kg/m^3 while density of air is 1.3 kg/m^3. So , more humidity would mean that more water vapour is present in the atmosphere as the water vapours displace air particles in the region meaning that density would decrease. Hope it helps!
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how you can have air pressure without container?
Pressure is a force applied over an area. There is no requirement for a container as long as a force acts to press matter onto a surface. Atmospheric pressure is the force of gravity pulling the gas molecules in the atmosphere down onto the surface of the Earth.
Although, you could also describe Earth as a container with gas in the atmosphere contained in an envelope around the planet by gravity.
So where do we get the Area if don't have a container? if then, so can we consider the area is depend how or where the pressure acting on it?
If there was a container aka. dome that you are suggesting, there would be no pressure gradient. The pressure would equalize.
all sounded good until you mentioned the coriolis effect.
which of course is non-existent, right?
I've never heard anyone argue that the Coriolis effect is not real. That criticism is usually saved for discussions of the Coriolis force and even then I'd argue that it depends on the context. There is certainly no such thing as a Coriolis force - ie a real force causing a real change in acceleration of a mass, but when calculating the trajectory of an object moving in a rotating frame of reference - like air masses on Earth - the rotating frame of reference definitely effects the apparent motion of the air.
Physicists use terms like pseudo force or inertial force when discussing things like this. When doing the actual calculations that involve rotating frames of reference they do have to treat these apparent forces as if they were real in order to properly describe the motion.
In the context of this video, the Coriolis effect is real in the sense that - from the rotating frame of reference of someone standing on the Earth - air masses moving along pressure gradients do turn to the right in the northern hemisphere.
@@SciencePrimer Its a flat earther, just ignore.
that's cool😍
Excellent 👌
Thanks a lot!
Nice 👌
Thanks
Gravity sir is just a theory what goes up doesn't always come down 😊 how about the theory of density? 🤔 Density & gravity combined 💯