When Kennedy ran for president in 1960, one of his key election issues was an alleged " missile gap ", with the Soviets leading.

When iodine is dissolved in polar solvents which are strong donor solvents such as ketones, ethers, pyridine, the formation of charge-transfer complex leads to modification of the energy gap between the two molecular orbitals, thus different wavelengths were absorbed and iodine has different color in solvents with different polarity.

When the contacts are separated by an insulating air gap, they are said to be " open ", and no current can flow between them at normal voltages.

When a modern ski is tilted on to its edge, a gap is created between the ground and the middle of the ski ( under the binding ) as only the sides near the tip and the tail touch the snow.

When added to baking soda ( sodium bicarbonate ), cyanoacrylate glue forms a hard, lightweight filler / adhesive ( baking soda is first used to fill a gap then the adhesive is dropped onto the baking soda ).

When originally published, the law was approximately satisfied by all the known planets — Mercury through Saturn — with a gap between the fourth and fifth planets.

When a fast moving object is present on two consecutive frames, a gap between the images on the two frames contributes to a noticeable separation of the object and its afterimage in the eye.

When the gap is sufficiently wide, real estate developers, landlords, and other people with vested interests in the development of land perceive the potential profit to be derived from re-investing in inner-city properties and redeveloping them for new tenants.

When the walls were first erected in 1756, they were made of squared wooden timbers, with earth filling the gap.

When writing, the coil is energized, a strong magnetic field forms in the gap of the C, and the recording surface adjacent to the gap is magnetized.

When it became clear that the gap between two sections of Route 38 would not be filled, the New Jersey Department of Transportation re-designated the eastern portion as Route 138.

When Þorgrim and a few other grudge-bearing men are scouting around Gunnar ’ s house, Gunnar wakes up and stabs Þorgrim through a gap with his axe.

When the gap in seating is narrow, the wave can sometimes pass through it.

When a gap formed in the French line, De Ruyter suddenly tacked with his own centre and sailed through it.

When Washington set up his first administration, and the first Congress began passing laws, both quickly discovered an inconvenient gap in the constitutional design of the government: It had no provision for a regional administrative structure stretching throughout the country.

When Yucaipa incorporated, they included the area outside of the Yucaipa Valley on the " hilltop " or " mesa " that was traditionally known as Calimesa within its city boundaries, so as not to leave a gap of unincorporated area between the two towns.

When New Jersey renumbered its state highways in 1953, the portion of Route S24 between Penwell and County Route 517 in Hackettstown became a part of Route 24 to complete a gap in that route while Route S24 north of there became Route 57.

When the meteoroids pass by Earth, some are accelerated ( making wider orbits around the Sun ), others are decelerated ( making shorter orbits ), resulting in gaps in the dust trail in the next return ( like opening a curtain, with grains piling up at the beginning and end of the gap ).

When Sabena was created, it was partly funded by Belgians in the Belgian Congo colony who lost their air service — an experimental passenger and cargo company ( LARA ) between Léopoldville, Lisala, and Stanleyville — a year earlier and expected the new Belgian national airline to fill this gap.

When questioned about the eight-year gap between solo albums in interviews, Lennon expressed that he did not feel like a solo artist during those years and that he wanted to experience music anonymously without the spotlight on him.

When there is a gap between one's real and one's declared aims, one turns as it were instinctively to long words and exhausted idioms, like a cuttlefish spurting out ink.

When absinthe fell into disfavor in the early 20th century, ouzo was one of the products whose popularity rose to fill the gap ; it was once called " a substitute for absinthe without the wormwood ".

When the gap is closed it has the effect of lifting the top lip, placing it in a more feminine position and often exposing a little of the upper incisors.

When electrons collide with molecules of air in the gap, they excite their orbital electrons to higher energy levels.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

When Robinson first designed his anemometer, he asserted that the cups moved one-third of the speed of the wind, unaffected by the cup size or arm length.

When the particles are in great motion, they produce a Doppler shift for measuring wind speed in the laser light, which is used to calculate the speed of the particles, and therefore the air around the anemometer.

When the wind blows horizontally, it presses on and moves the ball ; because ping-pong balls are very lightweight, they move easily in light winds.

When taken in the context of Dowson's poem about " Cynara ", the phrase " gone with the wind " alludes to erotic loss.

When looking at a Van Goyen painting one can almost feel the wind in the trees laced with the scent of a bluest smoke lingering above a rustic cottage, or taste the salted air near the seashore he painted.

When hunting, the Common Kestrel characteristically hovers about 10 – 20 m ( c. 30 – 70 ft ) above the ground, searching for prey, either by flying into the wind or by soaring using ridge lift.

When Joseph Stalin got wind of this, he directed Gottwald to drop all pretense of democracy.

When motorcycles were invented, some riders took to wearing heavy leather jackets to protect from road rash and wind blast ; some also wear chaps or full leather pants to protect the lower body.

When the girls become comfortable in their new house and laugh with their father, the soot spirits ( identified as " black soots " in early subtitles and " soot sprites " in the later English dubbed version ) leave the house to drift away on the wind.

When sailing upwind the apparent wind is greater than the true wind and the direction of the apparent wind will be forward of the true wind.

When sailing close to the wind the force generated by the sail acts at 90 ° to the sail.

When sailing downwind, the sails no longer generate aerodynamic lift and airflow is stalled, with the wind push on the sails giving drag only.

When the boat is traveling approximately perpendicular to the wind, this is called reaching.

When the waves are steep, it may be necessary to sail closer to the wind to avoid waves directly on the beam.

When powdery, snow moves with the wind from the location where it originally landed, forming deposits called snowdrifts which may have a depth of several meters.

When combined with renewable energy systems such as photo-voltaic solar panels or wind systems they can be stand alone systems.

When stars are born, their birth is accompanied by a strong outward wind of gas and dust.

When close to a planet with a strong magnetosphere such as Earth or a gas giant, the magnetic sail could generate more thrust by interacting with the magnetosphere instead of the solar wind, and may therefore be more efficient.

When operating away from planetary magnetospheres, a magnetic sail would force the positively charged protons of the solar wind to curve as they passed through the magnetic field.

When the wind is turned on the liquid quickly evaporates leaving behind the clay in a pattern characteristic of the air flow.

* Revised Overture ( arranged by Geoffrey Toye, 1920 ; includes " I once was as meek ", " When the night wind howls ", " I know a youth ", " My eyes are fully open ", " I shipped, d ' ye see " and Hornpipe )