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.

A piece of soft fabric or rubber is placed behind the beads so that they do not move inadvertently.

In order to count as an intentional ball, the ball must be legally pitched, i. e., the pitcher's foot must be on the pitcher's rubber, the catcher must be in the catcher's box, and the batter must be in the batter's box appearing ready to take a pitch at the time the ball is thrown.

In rubber bridge, two partnerships participate in the game at one table and the objective is to score the most points in the play of several hands.

While rubber bridge is played competitively and for stakes, it is most often played socially and with less formality than duplicate bridge.

In rubber bridge, partnerships may be self-determined or decided by a cut of the cards, the two highest cut playing against the two lowest, and the first dealer is the player cutting the highest card.

If all four players pass in the first round, the deal is not played ; in rubber bridge the deal is not scored and the hand is redealt by the original dealer, while in duplicate the score is recorded as zero for each pair and returned to the board.

The hose barb is connected to a gas nozzle on the laboratory bench with rubber tubing.

Carbon black is also used as a filler in rubber products such as tyres and in plastic compounds.

A solid rubber discus is sometimes used ( see In the United States ).

Door guards protect fingers in door hinges by covering the gap that is created by opening doors by covering the hinges of doors with a piece of rubber or plastic that wraps from the door frame to the door.

* 1988 – Chico Mendes, a Brazilian rubber tapper, unionist and environmental activist, is assassinated.

1, 3-Butadiene is a precursor to rubber used in tires, and isoprene is the precursor to natural rubber.

Another type of drum muffler is a piece of rubber that fits over the entire drumhead or cymbal.

Edge entered one in the 1901 Gordon Bennett Cup, only able to test it en route ( it was completed 25 May, only four days before the event ), Montague serving as his riding mechanic ; she overpowered her Dunlops, and fitting new ( French ) rubber led to disqualification, since they were not of the same nation of origin.

Each plane had a propellor powered by a rubber band, and when each was completed, at a rate of one every 2 minutes, the machine launched it to fly up and circle around the gallery.

The completed keys are mounted to a wooden or bamboo frame with string or rubber strips.

The Australian infantry companies completed their search tasks by midday, moving to the edge of the rubber plantation north-east of Long Tan.

The lake was completed in 1999, using inflatable rubber barriers in the riverbed to confine water within its boundaries.

A new, steel-reinforced black rubber bumper at the front incorporated the grille area as well, giving a major restyling to the B's nose, and a matching rear bumper completed the change.

Pakistan also won the next Test at Dhaka and therefore completed a series win in the three match rubber.

The big factories which are relatively near the centers of our cities -- the rubber factories in Akron, Chrysler's Detroit plants, U.S. Steel's Pittsburgh works -- often began on these sites at a time when that was the edge of the city, yet close to transport ( river ), storage ( piers ) and power ( river ).

Hermann Staudinger faced similar prejudices in the 1920s when he argued that rubber was composed of macromolecules.

* Steel wheels on steel track create about one-seventh as much friction as rubber tyres on bitumen, thus creating dramatically less pollution when carrying the same load.

For example, oils, and greases, and rubber, or plastic gaskets used as seals for the vacuum chamber must not boil off when exposed to the vacuum, or the gases they produce would prevent the creation of the desired degree of vacuum.

Although these have not been major sources of rubber, Germany attempted to use some of these during World War II when it was cut off from rubber supplies.

At very low temperatures, rubber is rather brittle ; it will break into shards when struck or stretched.

These clones yield more than 2, 000 kilograms of dry rubber per hectare per year, when grown under ideal conditions and ideal field.

Uncured natural rubber is sticky, deforms easily when warm, and is brittle when cold.

As a result, when stress is applied the vulcanized rubber deforms, but upon release of the stress, the article reverts to its original shape.

For instance, when X is a bounded subset of the plane, the convex hull may be visualized as the shape formed by a rubber band stretched around X.

When the set is a nonempty finite subset of the plane ( that is, two-dimensional ), we may imagine stretching a rubber band so that it surrounds the entire set and then releasing it, allowing it to contract ; when it becomes taut, it encloses the convex hull of.

In small passages, such as that between the plant cell walls ( or in tracheids ), a column of water behaves like rubber – when molecules evaporate from one end, they literally pull the molecules behind them along the channels.

Most printers attempt to prevent this drying from occurring by covering the printhead nozzles with a rubber cap when the printer is not in use.

Covers can be made from more exotic materials for unusual applications such as silicone for heat or gum rubber when traction is essential.

The abuses suffered, especially in the rubber industry included the effective enslavement of the native population, beatings, widespread killing, and frequent mutilation when the production quotas were not met.

Eight men of one team were dragging their pre-loaded rubber boat off the LCM when artillery hit ; only one survived the resulting detonation of their supplies.

Other examples of materials that can acquire a significant charge when rubbed together include glass rubbed with silk, and hard rubber rubbed with fur.

Oscar has shown rare acts of kindness such as trying to replace Ernie's rubber duckie when Ernie had lost it.

They contain springs and / or a rubber foam and plywood combination which make the floor bouncy, soften the impact of landings and enable the gymnast to gain height when tumbling.

He has performed the essential Jonah act of allowing himself to be swallowed, remaining passive, accepting-even when this means accepting " concentration camps, rubber truncheons, Hitler, Stalin, bombs, aeroplanes.

In an era when diamond safety frames and pneumatic tires were taking over from high-wheelers with solid rubber tires, Paris-Brest was an " épreuve ," a test of the bicycle's reliability.

Butler's largest fire began just after midnight, February 26, 1957, when one of the nation's largest rubber reclaiming mills ( Pequanoc Rubber Company, Main Street ) was destroyed by a blaze estimated to have caused a loss of as much as $ 3 million at the time.