Pressure gradient
A+LS
Velocity.
It's called the diameter.
the diameter
The longest distance across a circle is its diameter and the shortest distance is a minor chord
It is simply called the distance between the two points - simple as that. How that distance is measured will depend on the nature of the surface on which the two points are located as well as on the metric for measuring distance that is defined on that space.The common metric in Euclidean space is the Pythagorean distance while on the surface of a sphere (like the Earth, for example), distances are measured along the great arc.
Pressure can be measured with a barometer, or a manometer.
'Distance' can't be measured in degrees.The angle from the equator to the place of interestis the latitude of the place.
'Distance' can't be measured in degrees.The angle from the equator to the place of interestis the latitude of the place.
Systolic Pressure
The distance half way across a circle is the circle's radius.radias
Latitude
I think you mean the distance from the Earth to the Sun. This distance is measured in Astronomical Units (AU)
Originally, the distance was measured by a system called parallax measurement. Today, it is measured by laser beam, and is accurate to within inches.
diameter
Velocity.
It's called the diameter.
pressure is usually measured relative to atmospheric this is called gauge pressure. if you compare against absolute zero pressure (vacuum) this is called absolute pressure.