interesting birds and rare (6)
What was the currency that took Judas?
is difficult to determine what kind of currency was the thirty pieces of silver, according to St. Matthew
, Judas received for betraying Jesus. At that time in Galilee three
circulating currencies. Taxes for the cost of the temples are paid in currencies
of Tyre. The most commonly used currency was tetradracma Rhodes,
wide circulation throughout the Mediterranean area due to the expansion of Greek commerce.
Both currencies were worth more or less the same. The third most used were the deniers
Silver, introduced by the Romans, who did not have much value in
compared with the other two currencies: a jug of wine cost a penny dicciseisavo of
. At current rates, and had taken on Roman coins, Judas would
received about 100,000 pesetas.
What is the heaviest metal?
Iridium, chemical symbol Ir and atomic number 77, is the heaviest metal
world and one of the scarcest. A cube 30 centimeters on a side full of iridium
weighs about 650 kilos! Discovered in 1803 by the British chemist Smithson Tennant
, the yellowish-white metal fused to the 2,440 ° C, is highly resistant
and minerals found in certain platinum. The main fields are in iridium
Nizhni Tagil, in the former Soviet Union, and Brazil.
What was your first language?
The write-only reference that can be a language-
oldest found so far is for the Ancient Texts of Ruk, the biblical Erech, a city
in the lower reaches of the Euphrates, in what is now the southern Iraq.
clay tablets found in printed texts are deposited in the museums of Baghdad
, Heidelberg and Berlin. The date of its origin dates back to 3,000 years before Christ
. 85 percent of the information is financial, which suggests
were economic reasons which prompted a written record of
issues. The remaining text are long lexical relations. Thus, under the generic timber
the names of all the trees then known. In another detailed
splints names of 58 breeds and over 180 other lists
professions and social positions.
What is the difference between the atomic bomb and hydrogen?
The atomic bomb or is based on the principle of fission of atomic nuclei
uranium 235 or plutonium 239. By bombing these metals with a stream of neutrons, the nuclei are broken
violently, emitting two or three neutrons which, in turn, burst
nuclei closer. The result is a chain reaction, in principle
unstoppable, which degenerates into a giant fireball that reached
million degrees Celsius. This process is only possible from a minimum
amount of matter that scientists called critical mass. Its value is 7 kilograms for plutonium
and 15 for uranium.
Unlike the latter, the principle of hydrogen bomb or H lies in
use of two small hydrogen atoms to produce a larger helium. The union of hydrogen nuclei
is a daunting task, and we have to win
electromagnetic forces keep them away. This is usually achieved only
popping a bomb on a mass of hydrogen. In the merger,
released energy equivalent to that of the Sun
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