At the end of the year 1897, Marie Curie started her work on uranic rays discovered by Becquerel one year earlier.

At the beginning of the 20th century, Marie Curie discovered, in tons of pitchblende ore containing uraninite from Joachimsthal, the element radium, for which she won the Nobel Prize in Chemistry.

At the end of the 1990s they were renamed once more after famous women ( Bronte, Pankhurst, Franklin and Nightingale ), then when an extra form group was introduced in 2003, then un-introduced in 2005, a new house was created ; ( Curie ).

At the northern end the rim is overlaid by the small crater Curie Z.

At the nine Marie Curie Hospices, quality of life for patients is actively promoted as is providing much needed support for their carers.

At that point we reach the `` closed '' historical situation: the situation in which man is no longer free to return to a status quo ante.

At that point men become aware of the mystery of history called variously `` fate '', or `` destiny '', or `` providence '', and feel themselves caught helplessly in the writhing of a disrupted society.

At this point Mrs. Frances Cupply, one of Wright's handsome daughters by his first wife, came from the house and tried to calm Miriam as she tore down a no visitors sign and smashed the glass pane on another sign with a rock.

At this point a working definition of idea is in order, although our first definition will have to be qualified somewhat as we proceed.

At this point, of course, the issue has become complicated by a development unforeseen by Lappenberg and Kemble.

At that point the Administration will have little reason to hang onto Gen. Swing.

At 2130 hours they had passed through the barbed wire at the point of departure.

At this point it should be painfully obvious that cities, being `` soft '', and the people within them are ideally suited to destruction by nuclear weapons.

At this point the drains are readjusted so that the suds box drain will discharge directly into the waste line and the main tub drain is set at the 2-1/2 mark on the drain gauge.

At this point, unfortunately, romance becomes a regrettably small part of the picture ; ;

At the point where they ended, another settlement grew up around a chapel built at the boat landing by Father Lucian Galtier in 1840.

At one point in the game when the skinny old man in suspenders who was acting as umpire got in the way of a thrown ball and took it painfully in the kidneys, he lay there unattended while players and spectators wrangled over whether the ball was `` dead '' or the base runners were free to score.

At this point Charles C. Hanch, long an advocate of patent peace in the industry, became chairman of the patents committee of the National Automobile Chamber of Commerce, successor to the Automobile Board of Trade.

At this point you cross the wide Corso Vittorio Emanuele 2,, walk along the Corso Del Rinascimento a couple of hundred yards, then turn left on the Via Dei Canestrani to enter the splendid Piazza Navona, one of the truly glorious sights in Rome.

At one point late in the day, when Palmer was lining up a 25-foot putt on the 16th, a thunderous cheer from the direction of the 18th green unmistakably announced that Player had birdied the final hole.

At that point William came into the picture.

At one point, Abby May threatened that she and their daughters would move elsewhere, leaving Bronson behind.

At some point, he was alleged to have accompanied Swein on a pilgrimage to the Holy Land, but proof is lacking.

At that point the deposed emperor was ransomed by Michael I of Epirus, who sent him to Asia Minor, where Alexios ' son-in-law Theodore I Laskaris of the Empire of Nicaea was holding his own against the Latins.

In the list of popes given in the Holy See's annual directory, Annuario Pontificio, the following note is attached to the name of Pope Leo VIII ( 963 – 965 ): At this point, as again in the mid-eleventh century, we come across elections in which problems of harmonising historical criteria and those of theology and canon law make it impossible to decide clearly which side possessed the legitimacy whose factual existence guarantees the unbroken lawful succession of the successors of Saint Peter.

At one point, his Spanish pursuers urinated at the bottom of a tree he was hiding in, but did not discover him.

At no great distance east of this rift-valley is Mount Kilimanjaro-with its two peaks Kibo and Mawenzi, the latter being, and the culminating point of the whole continent — and Mount Kenya, which is.

At this point during the pre-mission preparations, the Saturn V rocket's three stages were powered up and drinking water was pumped into the spacecraft.

At this point, during tests of the CSM's steerable rocket engine in preparation for the burn to modify the craft's orbit, a malfunction occurred in the engine's backup system.

At that point, scientists began to reconsider their pre-mission hypothesis that Descartes had been the setting of ancient volcanic activity, as the two astronauts had yet to find any volcanic material.

Allotropes of iron, ( alpha iron and gamma iron ) showing the differences in atomic arrangement. At a certain temperature, ( usually between and ), the base metal of steel ( iron ) undergoes a change in the arrangement of the atoms in its crystal matrix, called allotropy.

At Montgomery, in the central region, the average annual temperature is 66 ° F ( 19 ° C ), with a winter average of 49 ° F ( 9 ° C ), and a summer average of 81 ° F ( 27 ° C ).

At the opposite extreme, a transformation of a thermodynamic system can be considered isothermal if it is slow enough so that the system's temperature remains constant by heat exchange with the outside.

At its maximum, the temperature of the spacecraft's heat shield was between.

Carnrick ( 1981 ), The stabilized temperature platform furnace, At.

At room temperature and pressure, barium has a body-centered cubic structure, with a barium – barium distance of 503 picometers, expanding with heating at a rate of approximately 1. 8 /° C.

At that temperature, the vapor pressure of the liquid becomes sufficient to overcome atmospheric pressure and allow bubbles of vapor to form inside the bulk of the liquid.

At standard temperature and pressure, two chlorine atoms form the diatomic molecule Cl < sub > 2 </ sub >.

At room temperature the magnitude of this fractionation is roughly 0. 25 ‰ ( 0. 025 %) per atomic mass unit ( AMU ).

At room temperature, the average speed of these random motions is 10 < sup > 6 </ sup > metres per second.

At standard temperature, pressure and concentration conditions, the cell's emf ( measured by a multimeter ) is 0. 34 V. By definition, the electrode potential for the SHE is zero.

At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas with the molecular formula H < sub > 2 </ sub >.

At room temperature, honey is a supercooled liquid, in which the glucose will precipitate into solid granules.

At lower altitudes, the increased temperature is like day and night, literally: like starting the morning at the highland daytime high, and then adding the heat of the day, again.

At too low temperature, most LC materials will form a conventional crystal.

At Standard Sea Level conditions ( corresponding to a temperature of 15 degrees Celsius ), the speed of sound is 340. 3 m / s ( 1225 km / h, or 761. 2 mph, or 661. 5 knots, or 1116 ft / s ) in the Earth's atmosphere.

At standard temperature and pressure, two atoms of the element bind to form dioxygen, a very pale blue, odorless, tasteless diatomic gas with the formula.

At standard temperature and pressure, oxygen is a very pale blue, odorless gas with the molecular formula, in which the two oxygen atoms are chemically bonded to each other with a spin triplet electron configuration.

At higher elevations from, the Puna ecoregion, the temperature varies from during the night versus during the day.

At this site, there are four main life zones, delineated on the basis of temperature and precipitation ( Holdridge System ), in the Luquillo Mountains: subtropical wet and subtropical rain forests are found at low and mid elevations, lower montane rain and lower montane wet forests at high elevations.

At this stage, several factors are critical to yield: optimal soil moisture and temperature, soil nutrient availability and balance, and resistance to pest attacks.

At room temperature and pressure, the water jar reaches equilibrium when the air over the water has a humidity of about 3 %.

At the point where liquid begins to condense, the direction of the temperature and pressure curve will abruptly change to trace along the phase line until all of the water has condensed.

At a lower temperature, each strand is then used as the template in DNA synthesis by the DNA polymerase to selectively amplify the target DNA.

At the time, the temperature of the Sun was considered too low to overcome the Coulomb barrier.