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.

only the counter at one end was lighted by a long fluorescent tube suspended directly above it.

Precursors of pneumatic tube systems for passenger transport, the atmospheric railway ( for which the tube was laid between the rails, with a piston running in it suspended from the train through a sealable slot in the top of the tube ) were operated as follows:

Jules Verne's Paris in the Twentieth Century ( 1863 ) includes suspended pneumatic tube trains that stretch across the oceans.

A radiant heat lamp is suspended in the center of the hollow tube, and its infrared energy uniformly heats the roller from the inside.

As the traffic from all three deep tube lines would have overcrowded the Victoria Line escalators, Northern Line service to the station was completely suspended, the trains running through without stopping, until repairs were complete.

A circular capacitor B, 7. 7 cm in diameter, built from multiple layers of mica and tinfoil, was fitted into a smooth spherical celluloid ball D that was covered with conductive paint, and which was suspended by a fine phosphor-bronze wire 37 cm long within a grounded tube.

" In this device, each thermometer is suspended within a vertical tube of polished metal, and that tube is in turn suspended within a second metal tube of slightly larger diameter ; these double tubes serve to isolate the thermometers from radiant heating.

The Siegle steam spray inhaler consisted of a spirit burner, which boiled water in the reservoir into steam that could then flow across the top and into a tube suspended in the pharmaceutical solution.

It consisted of a small screen coated with zinc sulfide affixed to the end of a tube, with a tiny amount of radium salt suspended a short distance from the screen and a lens on the other end of the tube for viewing the screen.

The principle consists in a central load-carrying tube with independently suspended swinging half-axles bolted as one whole.

* Most professional salutes are aerial devices which are fired from a mortar tube, but there are also hanging ' cannonade ' salutes which are suspended from a framework before firing.

An alternate form of rapid-exit fire escape developed in the early 1900s was a long canvas tube suspended below a large funnel outside the window of a tall building.

Monorail means a system of guided transit vehicles operating on or suspended from a single rail, beam, or tube.

Next, the magician picks up a pitcher full of water and slowly pours the water into the tube, where it magically stays suspended.

Other forms of agate include Lake Superior agate, carnelian agate ( exhibiting reddish hues ), Botswana agate, blue lace agate, plume agates, moss agate, tube agate ( with visible flow channels or pinhole-sized ' tubes '), fortification agate ( which exhibit little or no banding structure ), fire agate ( which has internal flash or ' fire ', the result of a layer of clear agate over a layer of hydrothermally-deposited hematite ), Mexican crazy-lace agate, which often exhibits a brightly colored, complexly banded pattern ( also called Rodeo Agate and Rosetta Stone depending on who owned the mine at the time ).

Although a wide variety of graphite tube designs have been used over the years, the dimensions nowadays are typically 20 – 25 mm in length and 5 – 6 mm inner diameter.

The wind over the open end of a vertical tube causes little change in pressure on the other side of the manometer.

Puncture repair kit with tire levers, sandpaper to clean off an area of the inner tube around the puncture, a tube of rubber solution ( Vulcanization | vulcanizing fluid ), round and oval patches, a metal grater and piece of chalk to make chalk powder ( to dust over excess rubber solution ).

The Chinese Cheka detachments stationed in Kiev reportedly would attach an iron tube to the torso of a bound victim and insert a rat in the tube closed off with wire netting, while the tube was held over a flame until the rat began gnawing through the victim's guts in an effort to escape.

Poster and billboard space ( and in the case of Gloucester Road tube station, an entire disused platform ) is given over to artwork and poetry to " create an environment for positive impact and to enhance and enrich the journeys of ... passengers ".

Pneumatic tube networks gained great prominence in the late 19th and early 20th century for businesses or administrations that needed to transport small but urgent packages ( such as mail or money ) over relatively short distances ( within a building, or, at most, within a city ).

In classic cathode ray tube ( CRT ) devices, the brightness of a given point over the fluorescent screen due to the impact of accelerated electrons is not proportional to the voltages applied to the electron gun control grids, but to an expansive function of that voltage.

Chokes may either be formed as part of the barrel at the time of manufacture, by squeezing the end of the bore down over a mandrel, or by threading the barrel and screwing in an interchangeable choke tube.

The bottleneck or tube type of slide is usually worn over the ring ( 3rd ) or little ( 4th ) finger.

Because the presence of moisture causes the glue to set, exposure to moisture in the air can cause a tube or bottle of glue to become unusable over time.

For many processes in the medical, pharmaceutical, military and general industries this is an advantage over inline sensors that may contaminate the liquids inside a vessel or tube.

The solid-state device which operates most like the pentode tube is the junction field-effect transistor ( JFET ), although vacuum tubes typically operate at over a hundred volts, unlike most semiconductors in most applications.

Triodes as they evolved over 40 years of tube manufacture, from the RE16 in 1918 to a 1960s era miniature tube.

Later work confirmed that tube unreliability was not as serious an issue as generally believed ; the 1946 ENIAC, with over 17, 000 tubes, had a tube failure ( which took 15 minutes to locate ) on average every two days.

Although wide bandwidth sources typically suffer from low spectral power per unit frequency, the photomultiplier tube offers high gain ( about ) amplification of photon shot noise, making it advantageous over other lower gain noise sources.

Some rubies undergo a process of low tube heat, when the stone is heated over charcoal of a temperature of about 1300 ° C ( 2400 ° F ) for 20 to 30 minutes.

The dielectric function of the nanotube itself is large enough to allow for the spatial extent of the wave function to extend over a few to several nanometers along the tube axis, while poor screening in the vacuum or dielectric environment outside of the nanotube allows for large ( 0. 4 to ) binding energies.

This is so that the tips can have the end of a rubber or plastic tube mounted over them to connect the glassware to another system such as a vacuum, water supply, or drain.

A special clip may be placed over the end of the flexible tube surrounding the connector tip to prevent the hose from slipping off the connector.