The bore is unrifled but is provided with an insert tube which is rifled and which, surprisingly, gives pretty fair accuracy even though it's only 3-1/2 inches long.

One simple method of measuring the expansion of the heart is to tie a thin rubber tube, filled with mercury, around the heart and record the change in resistance as the tube is stretched.

Make sure that the metal tube through which the wire passes is in the shape of an inverted `` L '', the foot of the `` L '' about three inches long, so that the puppet can hang directly under the light.

The stamens are usually found around the style, either aggregated densely or fused into a tube, probably an adaptation in association with the plunger ( brush ; or secondary ) pollination that is common among the families of the order, wherein pollen is collected and stored on the length of the pistil.

* In a cathode ray tube, it is the positive terminal where electrons flow out of the device, i. e., where positive electric current flows in.

In electronic vacuum devices such as a cathode ray tube, the anode is the positively charged electron collector.

In a tube, the anode is a charged positive plate that collects the electrons emitted by the cathode through electric attraction.

In ET AAS a transient signal is generated, the area of which is directly proportional to the mass of analyte ( not its concentration ) introduced into the graphite tube.

The mercury, is then swept into a long-pass absorption tube by bubbling a stream of inert gas through the reaction mixture.

Above, A is the variable cross-section area of the tube at the inlet and exit.

Mixing artist or student quality acrylic paint with household acrylic emulsions is possible, allowing the use of pre-mixed tints straight from the tube or tin, so presenting the painter with a vast color range at his or her disposal.

The resulting liquid change in the U tube is an indication of the wind speed.

The highly successful metal pressure tube anemometer of William Henry Dines in 1892 utilized the same pressure difference between the open mouth of a straight tube facing the wind and a ring of small holes in a vertical tube which is closed at the upper end.

The pipe from the straight tube is connected to the top of the sealed chamber and the pipe from the small tubes is directed into the bottom inside the float.

In the tube anemometer the pressure is measured, although the scale is usually graduated as a velocity scale.

These may include a tire patch kit ( which, in turn, may contain any combination of a hand pump or CO < sub > 2 </ sub > Pump, tire levers, spare tubes, self-adhesive patches, or tube-patching material, an adhesive, a piece of sandpaper or a metal grater ( for roughing the tube surface to be patched ), and sometimes even a block of French chalk.

Compactrons are a type of thermionic valve, or vacuum tube, which contain arrangements of diodes, triodes, or pentodes in multiple combination arrays, as well as high or low-voltage and power types.

Common examples of in vitro experiments include ( a ) cells derived from multicellular organisms ( cell culture or tissue culture ), ( b ) subcellular components ( e. g. mitochondria or ribosomes ), ( c ) Cellular or subcellular extracts ( e. g. wheat germ or reticulocyte extracts ), or ( d ) purified molecules in the test tube ( often proteins, DNA, or RNA, either individually or in combination ).

It occurs because of inter-molecular attractive forces between the liquid and solid surrounding surfaces ; If the diameter of the tube is sufficiently small, then the combination of surface tension and forces of adhesion between the liquid and container act to lift the liquid.

It embodies a design that survives in no modern instrument ; that is, the main tube has only the length of a typical woodwind, but the mouthpiece is of the brass type, relying on a combination of the player's lips and the alteration of the length of the sound column via the opening and closing of the finger holes to alter the pitch of the musical sound.

A review published in 2010 supports the hypothesis that tubal ectopic pregnancy is caused by a combination of retention of the embryo within the fallopian tube due to impaired embryo-tubal transport and alterations in the tubal environment allowing early implantation to occur.

Knockout is accomplished through a combination of techniques, beginning in the test tube with a plasmid, a bacterial artificial chromosome or other DNA construct, and proceeding to cell culture.

Investigations later showed that a particular combination of draughts, caused by an eastbound train arriving at the station while a westbound train was leaving, created a 12 mph wind through the station and up the escalator ( known as the piston effect ; this helps ventilate the tube ), adding to the speed of the fire spreading.

If the diameter of the tube is sufficiently small, then the combination of surface tension ( which is caused by cohesion within the liquid ) and adhesive forces between the liquid and container act to lift the liquid.

This test is still a one way test, in the sense that there is still a remote chance that the tubing that passes this test can still be incompatible for the application since the combination of borderline compatibility and mechanical flexing can push the tube over the edge, resulting in premature tube failure.

The term " blunderbuss " is of Dutch origin, from the Dutch word donderbus, which is a combination of donder, meaning " thunder ", and bus, meaning " Pipe " ( Middle Dutch: busse, box, tube, from Late Latin, buxis, box, from Ancient Greek pyxίs ( πυξίς ), box: esp.

In the case of a saxophone, which has a similar mouthpiece-reed combination to the clarinet, or of an oboe, where double reeds beat against each other to the same effect, the conical-shaped bore of these instruments gives their the closed tube properties of an open tube ; when overblown, the pitch jumps an octave higher.

The subsequent addition of a linearizer ( as for inductive output tube ) can, by complementary compensation, improve the gain compression and other characteristics of the TWTA ; this combination is called a linearized TWTA ( LTWTA, " EL-tweet-uh ").

If a piece of music says the key on the left you can press the key combination on the right on the modern horn to get the correct tube length.

The line also used OPTO ( one person train operation ) beginning in June 2005, but a combination of public outcry due to perceived safety issues, which increased after the July 2005 London tube bombings, heavy lobbying by the Transport Workers Union of America ( TWU ), as well as an arbitration ruling that MTA had breached its contract with TWU caused the Metropolitan Transportation Authority to end OPTO the following September.

The 81 mm combination mortar mounted on the rear deck was not a gravity firing mortar as used by the Army and Marine Corps, in which the falling projectile's primer struck the fixed firing pin at the base of the mortar tube, but a unique lanyard firing weapon in which the projectile was still loaded into the muzzle.

A proportional counter uses a combination of the mechanisms of a Geiger-Muller tube and an ionisation chamber, and operates in an intermediate voltage region between these.

Typically, these experiments involve transfecting in a gene ( or combination of genes ) of interest, and then analyzing the expressed protein ; essentially, the cell is used simply as a test tube with a membrane.

It used as its aerial a 240-metre-high guyed steel tube mast, which was insulated against the ground in combination with an insulated guyed steel framework mast for a radiation pattern with a minimum towards the southeast.

The Clapp oscillator is one of several types of electronic oscillator constructed from a transistor ( or vacuum tube ) and a positive feedback network, using the combination of an inductance ( L ) with a capacitor ( C ) for frequency determination, thus also called LC oscillator.

Many variations of the concept exist, including a tube above the seabed, a tunnel beneath the ocean floor, or some combination of the two.

The combination of the panhard rod and the torque tube allows the easy implementation of soft coil springs in the rear to give good ride quality.

It will be shown theoretically that the high image intensification obtainable with such a tube and contact photography permits the utilization of extremely low incident light levels.

A cathode-ray tube ( CRT ) television displays an image by scanning a beam of electrons across the screen in a pattern of horizontal lines known as a raster.

This subsystem consisted of 4 parts, a Cassegrain telescope with a 1. 05 ° by 1. 05 ° field of view, a shutter and red / green filter assembly with 0. 08s and 0. 20s exposure times, a slow scan vidicon tube which translated the optical image into an electrical video signal, and the electronic systems required to convert the analogue signal into a digital bitstream for transmission.

Photons hitting a thin film of alkali metal or semiconductor material such as gallium arsenide in an image intensifier tube cause the ejection of photoelectrons due to the photoelectric effect.

It originally referred to the raster scan of cathode ray tube ( CRT ) video monitors, which paints the image line by line by magnetically steering a focused electron beam.

Currently available scanners typically use charge-coupled device ( CCD ) or contact image sensor ( CIS ) as the image sensor, whereas older drum scanners use a photomultiplier tube as the image sensor.

In older microscopes image may be captured by photography from a high-resolution cathode ray tube, but in modern machines image is saved to a computer data storage.

Image: HederelloidSEM. jpg | SEM image of a hederelloid from the Devonian of Michigan ( largest tube diameter is 0. 75 mm ).

Later designs would use a rotating mirror-drum scanner to capture the image and a cathode ray tube ( CRT ) as a display device, but moving images were still not possible, due to the poor sensitivity of the selenium sensors.

Although he made many contributions that were crucial to the early development of all-electronic television, he is perhaps best known for inventing the first fully functional all-electronic image pickup device ( video camera tube ), the " image dissector ", the first fully functional and complete all-electronic television system, and for being the first person to demonstrate such a system to the public.

The idea is based on simple principles of projective geometry: moving synchronously and in opposite directions the X-ray tube and the film, which are connected together by a rod whose pivot point is the focus ; the image created by the points on the focal plane appears sharper, while the images of the other points annihilate as noise.

This made the image focus at the side of the telescope tube, where the observer could view the image with an eyepiece without blocking the image.

Michelson sought another measurement, but this time in an evacuated tube to avoid difficulties in interpreting the image owing to atmospheric effects.

Taking an X-ray image with early Crookes tube apparatus, late 1800s.

This image is inverted and can be seen by removing the eyepiece and placing a piece of tracing paper over the end of the tube.

of two lenses: the objective lens which creates an image at infinity, and a second weak tube lens which then forms a real image in its focal plane.

Its lining is not padded but inflatable ; it has an inflation tube ending at the red nipple ( at the bottom of the image ), to inflate the lining by mouth to fit it firmly on the head.

* Picture tube, a term used by the software package Paint Shop Pro for a small digital image with no background used on web pages