As a Humanist, Dr. Huxley interests himself in the possibilities of human development, and one thing we can say about this suggestion, which comes from a leading zoologist, is that, so far as he is concerned, the scientific outlook places no rigid limitation upon the idea of future human evolution.

For a rigid body rotating around an axis of symmetry ( e. g. the blades of a ceiling fan ), the angular momentum can be expressed as the product of the body's moment of inertia, I, ( i. e. a measure of an object's resistance to changes in its rotation rate ) and its angular velocity ω:

This second term can be even further simplified if the particles form a rigid body, in which case it is the product of moment of inertia and angular velocity of the spinning motion ( as above ).

Fay refuses to take her wig off, and confesses to him that this disguise, left over from a college play, is the only way she can break out of her rigid and cynical persona.

In some cases, proteins can form more rigid structures, such as the coagulation of albumen in egg whites.

They can be divided broadly into two categories: dualist solutions that maintain Descartes ' rigid distinction between the realm of consciousness and the realm of matter but give different answers for how the two realms relate to each other ; and monist solutions that maintain that there is really only one realm of being, of which consciousness and matter are both aspects.

Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron and nitrogen.

In a real vector space, a unitary transformation can be thought of as simply a rigid rotation of the coordinate system, and all of the properties of a rigid rotation can be found in the unitary DFT.

The surface of a glass is often smooth since during glass formation the molecules of the supercooled liquid are not forced to dispose in rigid crystal geometries and can follow surface tension, which imposes a microscopically smooth surface.

This can produce interesting visual effects, although the resulting fabric is more rigid, because the slipped stitch " pulls " on its neighbours and is less deformable.

In very simple cases, knitting can be done without tools, using only the fingers to do these tasks ; however, knitting is usually carried out using tools such as knitting needles, knitting machines or rigid frames.

Monorail vehicles can also be found in singular rigid format, articulated single units, or as multiple units coupled into ' trains '.

When proteins bind specifically to other copies of the same molecule, they can oligomerize to form fibrils ; this process occurs often in structural proteins that consist of globular monomers that self-associate to form rigid fibers.

The primary wall lacks lignin that would make it tough and rigid, so this cell type provides what could be called plastic support – support that can hold a young stem or petiole into the air, but in cells that can be stretched as the cells around them elongate.

Ways have been developed to overcome challenges such as preventing the sauce from combining with the dough and producing a crust that can be frozen and reheated without becoming rigid.

Classical Education can be described as rigorous and systematic, separating children and their learning into three rigid categories, Grammar, Dialectic, and Rhetoric.

Because it can be difficult to prove " exclusive control ", this element has largely given way in modern cases to a less rigid formulation: that the evidence eliminates, to a sufficient degree, other responsible causes ( including the conduct of the plaintiff and third parties ).

Although the Construction and Use Regulations allow a maximum rigid length of 60 feet ( 18. 2 metres ), this, combined with a shallow kingpin and fifth wheel set close to the rear of the tractor unit, can give an overall length of around 75 feet ( 22. 75 metres ), although combinations of this length are usually used only to carry steel or concrete beams.

When using a dolly, which generally has to be equipped with lights and a license plate, rigid trucks can be used to pull semitrailers.

* " Theology " can also now be used in a derived sense to mean " a system of theoretical principles ; an ( impractical or rigid ) ideology.

This distinction can be demonstrated for both “ rigid ” and “ non rigid ” bodies.

The panels typically fit into grooves in the other pieces, and help to keep the door rigid.

In some running styles, notably long-distance " shuffles " which keep the feet close to the ground, the ankle remains more or less rigid during drive.

If the lattice is rigid, the atoms must be exerting forces on one another to keep each atom near its equilibrium position.

The precogs are kept in rigid position by metal bands, clamps and wiring, which keep them attached to special high-backed chairs.

These included making telescopes rigid enough so they wouldn ’ t sag out of focus during the exposure, building clock drives that could rotate the telescope mount at a constant rate, and developing ways to accurately keep a telescope aimed at a fixed point over a long period of time.

Van der Heyden was also credited with an early version of a suction hose using wire to keep it rigid.

The rear of the garment has a rigid board-like section, called a, below that is a hakama-dome ( 袴止め ) ( a spoon-shaped component sometimes referred to as a hera ) which is tucked into the obi or himo at the rear, and helps to keep the hakama in place.

These are more highly developed in the most efficient burrowers among the caecilians, and appear to help keep the skull and jaw rigid.

The Roadster uses the same Mercedes-Benz V12 engine as the coupe version, but has been made lighter and stronger to keep the car structurally rigid.

To this day, Buddhist and Jain monks keep rigid discipline, stringent vows and persistent study of their religion.

Imagine a very small system ( seen below ) of two paddles or gears connected by a rigid axle and that it is possible to keep these two paddles at two different temperatures.

Glassblowing blowpipes are long enough to keep the gather of molten glass at a safe distance from the glassblower, and rigid enough to support the weight of the glass when the pipe is held horizontally.

The prison doctor began to fear for the conspirators ' sanity, but Stanton would not allow them, nor the rigid wrist irons and anklets, each connected to a ball weighing seventy-five pounds, to be removed.

New way is characterized by rigid movements coupled with " clicks " ( limb contortions at the joints ) and " arms control " ( hand and wrist illusions, which sometimes includes tutting and locking ).

The two tapered ends ( typically long ) are rigid and straight, allowing for easy knitting ; however, the two ends are connected by a flexible strand ( usually nylon ) that allows the two ends to be brought together.

These are for tractor units, not straight, rigid, box or other heavy vehicles.

The solo stepdance is generally characterised by a controlled but not rigid upper body, straight arms, and quick, precise movements of the feet.

* mortise chisel: thick, rigid blade with straight cutting edge and deep, slightly tapered sides to make mortises and similar joints.

A straight axle is a single rigid shaft connecting a wheel on the left side of the vehicle to a wheel on the right side.

The two tapered ends ( typically long ) are rigid and straight, allowing for easy knitting, and are connected by a flexible strand ( usually nylon ) that allows the two ends to be brought together.

They will also have very straight, rigid front legs, and feet that are short and round ( so-called " cat feet ") with thick, black pads.

Typically, they are rigid structures of jointed, straight metal or plastic rods linked together with potentiometers that articulate at the joints of the body.

Its name is derived from the very rigid, straight busk inserted in the center front of the corset.

The long, straight, rigid tails can be used to flip themselves over if they are turned upside down, so a horseshoe crab with a broken tail is more susceptible to desiccation or predation.

Before this method of kicking was popularized in the 1960s by Pete Gogolak and his younger brother Charlie ( the first placekicker to be drafted in the first round ), every place kicker was a " straight on " kicker, a style that requires the use of a special shoe that is extremely rigid and has a flattened and slightly upturned toe.

The system, consisting of a rigid girder suspended by inclined straight chains, was known as Ordish's straight-chain suspension system.

This procedure involves the placement of a flexible, fiber optic camera through the patient's nose to view the vocal folds in the throat or the use of a straight, rigid camera placed through the mouth to view the vocal folds.

Spikelets 3 – 4 mm long, densely arranged on branches, ovoid, awnless, but move often long-awned, pale green to dull purple, short-bristly along veins ; racemes spreading, ascending or appressed, the lower somewhat distant, as much as 10 cm long, sometimes branched ; glumes and lower lemma minutely hairy on surface with longer more rigid hairs on veins ; first glume about two-fifths as long as spikelet, deltoid, the second as long as the spikelet, short-awned ; sterile lemma membranous, with a straight scabrous awn, 2 – 4 cm long or awnless ; fertile lemma ovate-elliptic, acute, pale yellow, lustrous, smooth, 3-3. 5 mm long.

The hanging platform differs from the hammock style in that, being rigid, the receptive partner's back is straight, rather than bowed.