The once rare phenomenon of having a country hit cross over to pop success became more common.

The formation of geysers is due to particular hydrogeological conditions, which exist in only a few places on Earth, so they are a fairly rare phenomenon.

A rare optical phenomenon may occur shortly after sunset or before sunrise, known as a green flash.

A rare meteorological phenomenon encountered during winter is ice fog, which comprises ice crystals suspended in the air ; it occurs only at very low temperatures, below − 30 ° C (− 22 ° F ).

While they do not sing or call out like males do, they do answer back ( an extremely rare phenomenon in the animal world ).

This administration was in turn opposed by the Polish Underground State, which not only fielded one of the three largest partisan forces in existence, but was a rare example of an underground government, a phenomenon not witnessed in many other occupied countries.

On the first Sunday of November 1941, high school students from all over Corfu took part in student protests against the occupying Italian army ; these student protests of the island were among the first acts of overt popular Resistance in occupied Greece and a rare phenomenon even by wartime European standards.

Hofstadter later recognized ( what he saw as ) the influence of Darwinist and other evolutionary ideas upon those with collectivist views, enough to devise a term for the phenomenon, “ Darwinist collectivism .” Before Hofstadter's work the use of the term in English academic journals was quite rare.

* 120 ° parhelion, relatively rare halo, an optical phenomenon occasionally appearing along with very bright sun dogs

* Infralateral arc, a rare halo, an optical phenomenon appearing similar to a rainbow under a white parhelic circle

* Parry arc, a rare halo, an optical phenomenon which occasionally appears over a 22 ° halo together with an upper tangent arc

* Supralateral arc, a rare halo, an optical phenomenon often confused with the indeed infrequently appearing 46 ° halo

Their common basic hypothesis was that the phenomenon was induced from rare oxidation processes and radical reactions.

" If ( she ) had reacted differently, that would have been suspect " and Hearst was " a rare phenomenon ( in a first world nation )... the first and as far as I know the only victim of a political kidnapping in the United States " were direct quotes from Hearst's autobiography attributed to the doctor.

( Other prominent Mediterranean tenors of the late 19th century to early 20th century who, like Caruso, did not " bleat " were Angelo Masini, Francesco Tamagno, Francesco Marconi, Francisco Viñas, Emilio De Marchi, Giuseppe Borgatti and Giovanni Zenatello, while the phenomenon was rare among French, German, Russian and Anglo-Saxon tenors of the same period — see Scott.

This has been noted as a rare phenomenon in many plants ( e. g. Nicotiana and Crepis ), and occurs as the regular reproductive method in the Saharan Cypress, Cupressus dupreziana.

Such is a rare phenomenon because interstates and US routes are numbered in order from opposite ends of the country, and in middle sections, such overlap is avoided.

A rare phenomenon, the occurrence is estimated to range from 1 in 50, 000 births to 1 in 100, 000 births, with a somewhat higher incidence in Southwest Asia and Africa.

Although serfdom became increasingly rare in most of Western Europe after the Renaissance, it grew strong in Central and Eastern Europe, where it had previously been less common ( this phenomenon was known as " later serfdom ").

For example, in " The Waking Dream: Unlocking the Symbolic Language of Our Lives ", Ray Grasse suggests that instead of being a " rare " phenomenon, as Jung suggested, synchronicity is more likely all-pervasive, and that the occasional dramatic coincidence is only the tip of a larger iceberg of meaning that underlies our lives.

Years of average rainfall are rare ; the usual pattern is bimodal, with some large string of dry years usually related to La Niña phenomenon ( slightly higher than 11. 5 inches / 300 millimetres ) followed by other years ( around 5 ) related to El Niño that make up the average ( with higher than 39 inches / 1000 millimetres ).

This fairly rare phenomenon, a heat burst, also tends to be of exceedingly dry air.

* Transient lunar phenomenon, rare illumination event on the Lunar surface.

Until recently, research on this phenomenon has been relatively rare, with only two types of involuntary memory retrieval identified: involuntary autobiographical memory retrieval, and involuntary semantic memory retrieval.

Artists were so highly valued under his rule that they were paid for their work — a rare phenomenon in ancient civilizations.

There are documented rare cases of the return to life of the clinically dead which are classified scientifically as examples of the Lazarus syndrome, a term originating from the Biblical story of the Resurrection of Lazarus.

The inhibition of the enzyme by very low concentrations of lanthanum ion is probably the strongest known biological effect of rare earth salts.

The ability to modify the hardness of steel by heat treatment had been known since 1100 BC, and the rare material was valued for use in tool and weapon making.

Other uncommon colors include red amber ( sometimes known as " cherry amber "), green amber, and even blue amber, which is rare and highly sought after.

The relatively small number of atomic absorption lines ( compared to atomic emission lines ) and their narrow width ( a few pm ) make spectral overlap rare ; there are only very few examples known that an absorption line from one element will overlap with another.

The Torah ( Jewish Law ), also known as the Pentateuch ( the first five books of the Christian Old Testament ), lays down the death penalty for murder, kidnapping, magic, violation of the Sabbath, blasphemy, and a wide range of sexual crimes, although evidence suggests that actual executions were rare.

The region is known for its production of white truffles, and hosts a festival and a museum dedicated to the rare fungus ( genus Tuber ).

A rare type of emerald known as a trapiche emerald is occasionally found in the mines of Colombia.

With some refinements ( and the rare exception of the Kingma system and other custom adapted fingering systems ), Western concert flutes typically conform to Boehm's design, known as the Boehm system.

Fossil remains of true finches are rare, and those that are known can mostly be assigned to extant genera at least.

Similarly, deposits of coal, diamonds, and many metals including silver, nickel, platinum, copper, molybdenum, iron, niobium, tantalum, uranium, and rare earths are known to exist, but not yet in commercially viable deposits.

The operation involves five teenage boys, who have each been chosen and trained by each of the five scientists, then sent to Earth independently in extremely advanced mobile suits ( one designed by each of the scientists ) known as " Gundams " ( called such because they are constructed from a rare and astonishingly durable material known as Gundanium alloy, which can only be created in outer space ).

Another variety, known as the retrospective gambler's fallacy, occurs when individuals judge that a seemingly rare event must come from a longer sequence than a more common event does.

* Adrenoleukodystrophy, a rare demyelination disorder also known as Siemerling-Creutzfeldt Disease causing progressive brain damage, adrenal failure, and eventually death.

These spaces are now known, respectively, to be the places of the radioactive synthetic elements technetium and promethium, and also the last two quite rare naturally-occurring stable elements hafnium ( discovered 1923 ) and rhenium ( discovered 1925 ).

Such very rare events are known as Polar Cap Absorption ( or PCA ) events, because the increased ionization significantly enhances the absorption of radio signals passing through the region.

Ailsa Craig, which lies some south of Arran, has been quarried for a rare type of micro-granite containing riebeckite known as " Ailsite " which is used to make curling stones.

" Rare earths " got their name because they were indeed rare as compared to the " common " earths such as lime or magnesia, and historically only a few deposits were known.

Led Zeppelin Boxed Set 2 was released in 1993 ; the two box sets together containing all known studio recordings, as well as some rare live tracks.

# Sturgeon: fish well known for its eggs ( caviar ), which make it rare.

Baldassare Castiglione, author of Il Cortegiano (" The Courtier "), wrote in 1528: "... Another of the greatest painters in this world looks down on this art in which he is unequalled ..." while the biographer known as " Anonimo Gaddiano " wrote, c. 1540: " His genius was so rare and universal that it can be said that nature worked a miracle on his behalf ...".

These fifteen lanthanide elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements.

Using the known ionic radii for the trivalent rare earths and the linear correlation of log distribution coefficient with ionic radius, an average ionic radius of 0. 089 nm was estimated for Md < sup > 3 +</ sup > and a heat of hydration of –( 3654 ± 12 ) kJ / mol calculated using empirical models and the Born-Haber cycle.

In its natural state it has even been known to dry up completely in extreme drought, although that is extremely rare, with only two or three instances of this occurring since official record keeping began.

Photos are rare ; although very little is known about this species, scientists think they are similar to West Indian manatees.