When lecturing, he would write proofs in chalk on a blackboard rather than using overhead foils.

When she learned of these chalk talks, she recruited the cartoonists to do shows for the Hospital Committee of the American Theatre Wing.

When the last Ice Age ended, sea levels rose and the English Channel formed, cutting into the chalk to form the dramatic cliffs along the Sussex coast.

When viewed from above ( e. g. from the chalk escarpments ) the vale appears quite uniform-a large expanse of green, lush, low-lying land-but in geological terms it comprises alternating belts of different clay and limestone soils ( and greensand at the foot of the chalk ), which give rise to subtle variations in topography and appearance, and which have an impact on land use.

When this is discovered, she is left with the Nac Mac Feegle of the chalk for a time by Tiffany to undergo the ' soothing ' by Jeannie, the Nac Mac Feegle kelda, who discovers that Amber has " the gift of understanding "; being able, for example, to intuitively understand the old language of the Feegle.

When the ditch was cut, the chalk rubble fill was used to build the rampart, along with some of the local clay soil.

When the British took over the Somme sector from the French, they had inherited a number of mine workings — the chalk soil of the Somme was ideal for tunnelling.

When it rains, the porous chalk holds water in its aquifer, releasing the water at a steady rate.

When originally built, these structures must have looked spectacular even from a distance as their white chalk ramparts caught the sun.

:" Siddhartha Gautama, the Buddha, drew a circle with a piece of red chalk and said: ' When men, even unknowingly, are to meet one day, whatever may befall each, whatever the diverging paths, on the said day, they will inevitably come together in the red circle.

When the clock tower was rebuilt in the 1960s, the bell was brought out of storage and as the workmen were installing it they noticed, inside, the word " Eternity " in Stace's chalk.

When asked, in 2009, in one of the " Moment in Time " segments of the ABC TV programme Can We Help ?, on behalf of a viewer, Miriam Webster, whether Mr. Squiggle had lead in his pencil or whether it was " something more extraterrestrial ", Norman Hetherington replied: " It started off with a very large felt pen, a very thick felt pen ; but, in Studio 23, we were very close to the lights, and the heat would dry up the felt, and it wasn ’ t very good, so we graduated to crayon, and then to oil chalk, and then chalk.

When clicked, a bookmarklet performs some function, one of a wide variety such as a search query or data extraction.

When settlers of European extraction began arriving in large numbers, Oregon City became ( arguably ) the " End of the Oregon Trail ".

When the receiver contacts the PKG to retrieve the private key for this public key, the PKG can evaluate the identifier and decline the extraction if the expiration date has passed.

When K contains n distinct nth roots of unity, it states that any cyclic extension of K of degree n is formed by extraction of an nth root.

When Rambo calls for extraction, he is denied as Murdock fears what will happen to him and his party if the public come to know about it.

When organic soil was used, citrate buffer in the extraction mixture gave higher amounts of lipid phosphate than acetate buffer, Tris, H2O or phosphate buffer.

When compared with clear lens extraction, or refractive lens exchange the PIOL has the advantage of preserving natural accommodation and may have a lower risk of postoperative retinal detachment because of the preservation of the crystalline lens and minimal vitreous destabilization.

When James Hoskin was studying Agriculture at University, he had become interested in James Ruse due to his significance in the early development of agriculture in Australia, and also because " both Ruse and I are of Cornish extraction ".

When this happens, the nut or bolt can no longer be turned without special repair or extraction tools.

When the rinds are dried and cured in preparation for storage and extraction, they are dark brown or black in color.

When used for the extraction of food oils, typical raw materials are nuts, seeds and algae, which are supplied to the press in a continuous feed.

When his jaw was wired shut after his teeth were inadvertently shattered during a tooth extraction, he found himself temporarily unable to play that instrument and instead focused on writing a research paper on Arthur Pryor, an 1890s trombonist, conductor and music director.

When the temperature reached 32-degrees-F all protozoan activity ceased ; ;

When a Dictator entered office, he appointed to serve as his second-in-command a magister equitum, the Master of the Horse, whose office ceased to exist once the Dictator left office.

When the rest of the line was closed and all passenger services ceased, the section of the line between Cheddar and Yatton remained open for goods traffic.

When Larissa ceased minting the federal coins it shared with other Thessalian towns and adopted its own coinage in the late 5th century BC, it chose local types for its coins.

When hostilities ceased, he unsuccessfully attempted to set up an import business in Bandjermasin.

When Germain's correspondence with Gauss ceased, she took interest in a contest sponsored by the Paris Academy of Sciences concerning Ernst Chladni's experiments with vibrating metal plates.

When Iran and Iraq signed the Algiers Agreement in 1975, the support ceased.

When she finished the program on December 1, 1997, she ceased to exist as a complete ship and was listed as scrapped.

When the series folded before its planned 2008 season, Stoddart's involvement ceased, with the team entering the Indycar Series under the HVM name.

When Cao Pi, King of Wei, usurped the throne from Emperor Xian, the Han Dynasty ceased to exist.

When the resources that had created an employment boom in these towns were consumed, the businesses ceased to exist, and the people moved to more productive areas.

When the company was absorbed into Hawker Siddeley Aviation in July 1963, the Avro name ceased to be used.

When negated, tiha ona indicates that an action ceased to occur:

When the First World War broke out in 1914, while the WSPU ceased all of their activities to focus on the war effort, Fawcett's NUWSS did not.

When the Ottoman Turks conquered Constantinople in 1453, the Patriarchate ceased to function.

When the drainage system has ceased to act or is entirely diverted for any reason, the floodplain may become a level area of great fertility, similar in appearance to the floor of an old lake.

When Volkswagen production ceased at the end of the war, 50, 435 Kübelwagen vehicles had been produced and the vehicle had proven itself to be surprisingly useful, reliable, and durable.

When the war ended, the military bases closed and the flow of goods and materials ceased.

When Philidor left Paris, in 1745, although he had for some time been playing even games with M. de Legal ... he had not ceased to recognize his old master as still his master and superior.

When the Metropolitan District Railway was electrified in 1905 it ceased using the ELR, the last trains running on 31 July 1905 ; similarly, the Metropolitan Railway suspended its service after 2 December 1906.

The Vishnu Purana also explains that, " When the practices taught in the Vedas and institutes of law have nearly ceased, and the close of the Kali age shall be nigh, a portion of that divine being who exists of His own spiritual nature, and who is the beginning and end, and who comprehends all things, shall descend upon earth.

" When the other town of Hanover ceased to support a post office, then South Hanover's name was shortened to Hanover.

When the Southern Minnesota Railroad went north Wesner's Grove ceased to exist.

When it ceased manufacturing in 1995, many residents of Lower Saucon suffered loss of employment.