When placing window and door openings, a lintel is placed on top of the opening to support the bricks above.

When the Ark was borne by priests into the bed of the Jordan, water in the river separated, opening a pathway for the entire host to pass through ( Josh.

When Hitler's chief engineer, Fritz Todt, began opening the new autobahn ( highways ) in 1935, many of the bridges and service stations were " bold examples of modernism " – among those submitting designs was Mies van der Rohe.

When " Rock Around the Clock " appeared behind the opening credits of the 1955 film Blackboard Jungle starring Glenn Ford, it soared to the top of the American Billboard chart for eight weeks.

When Meletius died shortly after the opening of the council, Gregory was selected to lead the Council.

When every player has made a bid, the player to the left of the dealer makes the opening lead.

When the game is played according to the original rules, either player may force play into this Reversi opening.

When a group of Klingon radicals spent time aboard Voyager (" Prophecy "), Torres began opening her self to more Klingon beliefs and, for the first time since childhood, was able to pray for her grandmother, L ' Naal, and her great-grandmother, Krelik.

When opening the box, the observer becomes entangled with the cat, so " observer states " corresponding to the cat's being alive and dead are formed ; each observer state is entangled or linked with the cat so that the " observation of the cat's state " and the " cat's state " correspond with each other.

When a locking latch is released, the barrel assembly pivots away from the receiver, opening the breech and, at least on better firearms, partially extracting the spent cartridge.

When Bernard's brother, Adam Gimbel, became President of Saks Fifth Avenue in 1926 after Bernard's sudden passing, the company took on national aspirations, opening its very first branch store that year in the city of Palm Beach, Florida, as a seasonal resort store, followed by a second resort store in Southampton, New York, in 1928.

When they created the opening credits, Chris Carter found a video operator to stretch the face seen in the credits.

When creating the opening sequence for season nine, they decided to create a new sequence to give birth to the " new X-Files ".

When he spoke during the opening ceremonies, Jacques Rogge, presiding over his first olympics as IOC president, told the athletes of the United States, the host country:

" When the film had its premiere on opening night at the 1988 Cannes Film Festival, it was mercilessly drubbed, but no matter ; it was a smash ," observed the International Herald Tribune in a 2007 profile of Besson.

When the adductor tires, the sea star can insert its stomach through the opening and release gastric juices, digesting the prey alive.

When the water pressure within the xylem reaches extreme levels due to low water input from the roots ( if, for example, the soil is dry ), then the gases come out of solution and form a bubble – an embolism forms, which will spread quickly to other adjacent cells, unless bordered pits are present ( these have a plug-like structure called a torus, that seals off the opening between adjacent cells and stops the embolism from spreading ).

When Mornington Crescent tube station was reopened in 1998 after six years of closure for lift repairs, London Transport invited the Clue team to perform an opening ceremony.

When disturbed, the larva will retract its head into its case and hold the front opening closed.

When your opponent tries to attack this area he creates his own opening or weak point and you attack that area, completely catching them off guard.

# When the ABS system is in operation the driver will feel a pulsing in the brake pedal ; this comes from the rapid opening and closing of the valves.

When born, the kit's ears are folded over and its eyes are closed, with the eyes opening at around ten days and the ears lifting soon afterward.

When in operation, it was the custom to have a picture of Raymond Burr included somewhere on each set, with the first toast on the opening night of every production always dedicated to his memory.

When President Jimmy Carter nominated A. Daniel O ’ Neal ( originally appointed by President Richard Nixon ) to chair the ICC, O ’ Neal began to develop the possibilities for opening up the rail market to competition and innovation.

When the female is ready to lay her eggs, the entrance is just large enough for her to enter the nest, and after she has done so, the remaining opening is also all but sealed shut.

When it has caught and eaten that prey, it closes its right aortic arch and uses its left aortic arch to flush blood loaded with carbon dioxide from its muscles directly to its stomach ; the resulting excess acidity in its blood supply makes it much easier for the stomach lining to secrete more stomach acid to quickly dissolve bulks of swallowed prey flesh and bone.

When the LV expands again, the aortic valve prevents the blood from returning to the ventricle.

When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta.

When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close.

When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta.

When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close.

When the team went on a tour of non-broadcast stage shows, Brydon filled in as chairman when Lyttelton was in hospital to repair an aortic aneurysm.

When the pressure in the left ventricle falls below the pressure in the aorta, the aortic valve will close, preventing blood in the aorta from going back into the left ventricle.

When blood pressure rises, the carotid and aortic sinuses are distended, resulting in stretch and, therefore, activation of the baroreceptors.

When there is a decrease in the blood's pH, a decrease in oxygen ( pO < sub > 2 </ sub >), or an increase in carbon dioxide ( pCO < sub > 2 </ sub >), the carotid bodies and the aortic bodies signal the medulla oblongata ( specifically the dorsal inspiratory center in the medulla oblongata ) to increase the volume and rate of breathing.

When a distinction is made, the " aortic bodies " are chemoreceptors which regulate Circulatory system, while the " paraaortic bodies " are the chromaffin cells which manufacture catecholamines.

When a paraaortic lymph node dissection or sampling is done as a part of the treatment of cancer, the lateral aortic lymph node group is the most important group.

When the temperature is low, the spring winds and closes the valve, which allows the fan to spin at about 20 % to 30 % of the shaft speed.

When a fourth valve is present, as with some piccolo trumpets, it lowers the pitch a perfect fourth ( 5 semitones ).

When the throttle is closed, compressed air will flow to the throttle valve without an exit ( i. e., the air has nowhere to go ).

When a high water level is reached, a mechanism shuts the valve which fills the tank.

When a designer, engineer, or user decides to use a valve for an application, he / she should ensure the rated maximum temperature and pressure are never exceeded and that the wetted materials are compatible with the fluid the valve interior is exposed to.

When the water is pressurized, the head will pop up out of the ground and water the desired area until the valve closes and shuts off that zone.

When the water drops below a certain level, a pressure switch, level switch or float valve will activate a pump or open a public water line to refill the water tower.

When an air valve is closed, there is no airflow.

When the closed valve is opened, airflow will result from the cavity behind the initial closure outward until intraoral pressure is equal to atmospheric pressure.

When the lighthouse was electrified in 1980 it was discovered that the sun valve had been working continuously since 1912 without the need for an overhaul.

When a bypass valve did not open, water stopped flowing to the secondary's main feedwater pumps, which also shut down.

When the lobe of the air distributor hits one of the followers it will send an air signal that acts upon the back of the air start valve located in the cylinder head, causing it to open.

When he opened the valve — to let the TFE gas

When the air was sucked out from inside the hemispheres, and the valve was closed, the hose from the pump could be detached, and they were held firmly together by the air pressure of the surrounding atmosphere.

When the regulator valve V was opened, steam was let out of the boiler filling the space in the cylinder beneath the piston.

When a valve on the pipe was opened, the vacuum in the condenser would, in turn, evacuate that part of the cylinder below the piston.

When the piston, propelled by steam, reached the top of the cylinder, the steam inlet valve closed and the valve controlling the passage to the condenser opened.

When the pyloric sphincter valve opens, chyme enters the duodenum where it mixes with digestive enzymes from the pancreas, and then passes through the small intestine, in which digestion continues.

When the finished image was viewed by transmitted light, each bit of the silver image acted as a valve, allowing more or less light to pass through the corresponding colored starch grain, recreating the original proportions of the three colors.

When he soon improved the device by removing the poppet valve action, these three components became the piston valve, the slide valve, and the graduating valve.