Perpendicularly

This event marks the beginning of spring, and occurs when the sun’s rays fall perpendicularly on the equator.

Alternatively, : where F ⊥ is the amount of force directed perpendicularly to the position of the particle.

An equivalent condition is that opposite sides are parallel (a square is a parallelogram), that the diagonals perpendicularly bisect each other, and are of equal length.

An equivalent condition is that the diagonals perpendicularly bisect each other.

By shifting the nostrils to the top of the head, the nasal passages extend perpendicularly through the skull.

For light traveling perpendicularly to the optical axis the beams will have the same direction.

The back layer has conductive stripes printed perpendicularly to those of the front layer.

The radius of the circular disks, defined such that the x-axis cuts perpendicularly through them, is or where y or z can be taken to represent the radius of a disk at a particular x value.

These and adjacent valleys follow the general trend of Basin and Range topography with one modification: there are parallel strike-slip faults that perpendicularly bound the central extent of Death Valley.

The vector from an observer ( origin ) to a point of interest is projected perpendicularly onto a reference plane ; the angle between the projected vector and a reference vector on the reference plane is called the azimuth.

This can be somewhat reduced by a curved arm pivoted so that the end point of the arc stays farther from the linear path than the starting point, or by a long straight arm that pivots perpendicularly to the linear path in the middle of the record.

When an electron is moving through a magnetic field, it is subject to the Lorentz force that acts perpendicularly to the plane defined by the magnetic field and the electron velocity.

When pressed, the buttons travel in the same direction as the bellows, unlike accordion buttons, which travel perpendicularly to the bellows.

With turns of the winding oriented perpendicularly to the magnetic field lines, the flux is the product of the magnetic flux density and the core area, the magnetic field varying with time according to the excitation of the primary.