Efficient swimming by reducing water resistance involves having a horizontal water position, rolling the body in order to reduce the breadth of the body in the water and extending the arms as far as possible in order to reduce wave resistance.

Substituting and, we see that these equations for and are those of a circle rolling along a horizontal line — a cycloid:

The posterior canal detects rolling motion, or motion about the X axis ; the anterior canal detects pitch, or motion about the Y axis ; the horizontal canal detects yaw motion, or motion about the Z axis.

However, the pitching and rolling of the body of a non-rigid vehicle adds some ( small ) weight transfer due to the ( small ) CoM horizontal displacement with respect to the wheel's axis suspension vertical travel and also due to deformation of the tires i. e. contact patch displacement relative to wheel.

* Rolling bascule bridge-an unhinged drawbridge lifted by the rolling of a large gear segment along a horizontal rack

Where is the angle formed by the horizontal and the center of the rolling circle ( note that these are not polar equations because is not the polar angle ).

Galileo predicted that if a perfectly round and smooth ball were rolled along a perfectly smooth horizontal plane, there would be nothing to stop the ball ( in fact, it would slide instead of roll, because rolling requires friction ).

They both pull on the central part of the loop rolling the casualty up the surface taking care to co-ordinate the tension so that the casualty remains horizontal and that the rope remains in position on the casualty's arms and thighs.

Tumbler ( one thick horizontal red stripe ): Tumbler dominoes act in the same way as a Standard domino, however when a Tumbler domino lands on the floor, it flips up again and falls, effectively rolling along the ledge.

i.e., high loop gain causes the system to respond to horizontal components of accelerations.

Once the tip penetrates the animal the upper sub head broke off from the rest of the shaft, however, since it was still connected with the braided loop it rotated the head into a horizontal position inside the animal ’ s body so that it could not get away from the hunter.

* Ground loop ( aviation ), the rapid circular rotation of an aircraft in the horizontal plane while on the ground

The analemma lies almost horizontal, so the horizon can be tangential to it at two points, one in each loop of the analemma.

We have shown above that the field is pointing upwards inside the solenoid, so the horizontal portions of loop c do not contribute anything to the integral.

Now we can consider the imaginary loop b. Take the line integral of B around the loop of height l. The horizontal components vanish, and the field outside is practically zero, so Ampère's Law gives us:

Common types of low-gain omnidirectional antennas are the whip antenna, " Rubber Ducky ", ground plane antenna, vertically oriented dipole antenna, discone antenna, mast radiator, horizontal loop antenna ( sometimes known colloquially as a ' circular aerial ' because of the shape ), and the halo antenna.

The coercivity is a horizontal intercept of the hysteresis loop.

Another variation had both horizontal and vertical slits arranged in the form of a cross, and was called a crosslet loop or an arbalestina since it was principally intended for arbalestiers ( crossbowmen ).

In aviation, a ground loop is a rapid rotation of a fixed-wing aircraft in the horizontal plane while on the ground.

A railway spiral rises on a steady curve until it has completed a loop, passing over itself as it gains height, allowing the railway to gain vertical elevation in a relatively short horizontal distance.

A spiral loop should not be confused with the transition spiral or spiral easement used to provide a transition from a tangent into a horizontal circular curve.

The " pc " with a loop eventually evolved a horizontal fraction sign by 1650 ( see below for an example in a 1684 text ) and thereafter lost the " per ".

Thus mounting the loop in a horizontal plane will produce an omnidirectional antenna which is horizontally polarized ; mounting the loop vertically yields a weakly directional antenna with vertical polarization.

A long line — the traveler rope — formed a loop around two horizontal wheels, one on each side of the gorge.

The handles may be horizontal ear-shaped thumbholds that project from the rim ( in both Corinthian and Athenian shapes ), or they may be loop handles at the rim or that stand away from the lower part of the body.

Concrete also provides the best resistance of any building material to high winds, hurricanes, tornadoes due to its lateral stiffness that results in minimal horizontal movement.

It uses a two-layer grid of electrodes to measure finger movement: one layer has vertical electrode strips that handle vertical movement, and the other layer has horizontal electrode strips to handle horizontal movements .< ref >" touchpad.

While some forms are capable of independent movement and can swim hundreds of meters vertically in a single day ( a behavior called diel vertical migration ), their horizontal position is primarily determined by the surrounding currents.

The end of the tail is composed of two flukes, which propel the animal by vertical movement, as opposed to the horizontal movement of a fish tail.

The aircraft's horizontal and vertical movement is tracked via radar, and the controller tells the pilot his position relative to the approach slope.

Unlike stationary jumps, in which the jumper's kinetic energy at launch is solely due to the jump movement, moving jumps have a higher energy that results from the inclusion of the horizontal velocity preceding the jump.

* A horizontal situation indicator, shows the position and movement of the plane as seen from above with respect to the ground, including course / heading and other information.

Eduard Suess ( 1875 ) recognised the importance of horizontal movement of rocks.

In modern usage, balloon refers to any buoyant aircraft that generally relies on wind currents for horizontal movement, and usually has a mechanism to control vertical movement.

The spider does not usually jump unless touched brusquely, and even then its avoidance movement is more of a horizontal lunge rather than a vaulting of itself entirely off the surface.

After extensive analysis by the engineers, the problem was fixed by the retrofitting of 37 fluid-viscous dampers ( energy dissipating ) to control horizontal movement and 52 tuned mass dampers ( inertial ) to control vertical movement.

Also, retinal dopamine is involved in the regulation of electrical coupling between horizontal cells and the retinomotor movement of photoreceptor cells.

This direction of movement of the center of pressure on a conventionally cambered airfoil is de-stabilising, necessitating a horizontal stabiliser to provide the aircraft with longitudinal static stability.

This direction of movement of the center of pressure on a reflex-cambered airfoil is stabilising, and a horizontal stabiliser is not necessary.

In addition to the vertical movement of the land and sea, isostatic adjustment of the Earth also involves horizontal movements.

Typically, single and dual-paddle keys use horizontal movements, while a straight-key utilizes an up and down movement.

It plays an essential role in movement related to carrying the body weight in horizontal ( running and walking ) and vertical ( jumps ) directions.

One view argues it did not occur on the San Andreas fault ( the focus of most of the forecasts ), and involved dip-slip ( vertical ) movement rather than strike-slip ( horizontal ) movement, and so was not predicted.