var arrayFacts = [ "Lead – a killer element

Lead (82) is sometimes accused for the fall of the Roman Empire. Despite the fact that it is highly toxic, it was commonly used in Ancient Rome for plumbing and added to wine as a sweetener. Although today adding lead to food is banned, it still can be deadly. Bullets made of lead are far more devastating to human body than others.", "Carbon – girl’s best friend

Most of the people know that one of the forms of the carbon (6) is diamond. Still in many cultures exist legends about women, who threw useless black stones into fire and to their surprise found, that this stones are burning and giving much more heat that wood. Connecting this with fact, that women were collecting wood for winter, it is easier to understand why carbon is so beloved by them. ", "Silver – how to kill a vampire

In many cultures silver (47) is recognized as magical element which has the power to hurt unnatural beings. A silver-covered arrow or bullet was an ultimate weapon against vampires and werewolves as well as silver-made swords or daggers. Silver was dedicated usually to the goddesses of Moon and sea, used commonly in many alchemical rituals and in some ancient cultures was more valuable than gold.", "Oxygen – invisible devastator

Oxygen (8) is one of the most toxic and corrosive elements. When you see somewhere rust or patina you can be sure that it is the work of oxygen. Highly concentrated oxygen can also cause rapid combustion. Still, this element is necessary for aerobic respiration in animals, only plants and some of the bacteria can live without it.", "Radium – check your grandfather clock with a Geiger

Radium (88) is highly radioactive element. Its discoverer, Maria Sklodowska-Curie, was using a piece of radium as her precious stone and it is believed that her work on radioactive elements and this original gem drove her to cancer. Because of its luminescent abilities, Radium was formerly used in self-luminous paints for clocks and instruments. Such clocks are still dangerous and many painters encountered the same fate, as Mrs. Sklodowska-Curie.", "Gallium – metal which melts in the hand

Gallium (31) has a very low melting point temperature, which is only T = 30 °C. Cesium, francium and mercury have similar capabilities, but only gallium acts like water when in a liquid state . It is also very hard to store - Gallium cannot be stored in aluminum containers, because it reacts with it, forming eutectic mixture. It should also not be stored in glass containers, because it expands like ice when it solidifies.", "Rhodium – one of the most valuable metals

Rhodium (45) is one of the rare metals which can be found usually in platinum ores. It is very difficult to determine if rhodium is present in given mineral and annual production of this metal is no more than 20 tons. This is why rhodium costs six times as much as gold and some items which are defined as “The most valuable' in the Guinness Book of World Records usually contain rhodium.", "Tin – metal which changed our history

Although tin (50) as a pure metal was not used until the times of Ancient Greece. Without this element our development in technology will be extremely slow. This is because tin was used as a hardener of the copper in bronze implements about 3500 years BC. Without bronze, we will still have to rely on wood, not on metal. It is believed, that this metal was known ever before, because linguistics claim that word “tin' has a pre-Indo-European language origins. ", "Lutetium – unknown but heavy

Lutetium (71) is one of the few rare elements on the Earth that has only few commercial uses. Still, lutetium is the heaviest and the hardest of the rare-earth elements. It has also the highest spin quantum number of the elements, at 7. It is also almost as expensive as rhodium.", "Rhenium – the last element

Although rhenium (75) occurs in free form in nature, it was discovered only in 1925 by German scientists, who found it in platinum ore and columbite. This is why rhenium is considered as the last of the naturally-occurring elements on the Earth which have been discovered. Because of its rareness rhenium is also one of the most expensive metals in the world.", "Iridium – a visitor from outer space

Iridium (77) is very rare on Earth and can be found with platinum group metals. It is believed that most of its resources came from the outer space, because iridium is very common in meteorites. A great asteroid which hit Earth 65 million years ago and caused the extinction of dinosaurs was partially made of iridium. ", "Lithium – the oldest metal in the universe

It is believed that Lithium (3) was created in the first moments of the Big Bang, so it is recognized as the oldest metal of the known universe. Because of its reactivity it does not occur in pure form in the nature. Lithium is also very flammable and lithium fires are very difficult to extinguish.", "Scandium – the metal of Scandinavia and missile submarines

Although scandium (21) can be found in over 800 minerals which occur widely on Earth, the only known concentrated sources of this element can be found in Scandinavia and Madagascar in rare minerals called thortveitite, euxenite and gadolinite. Alternative source of Scandium are Soviet missiles stockpiles, because this element was used in the Soviet Union to strengthen the nose cones of their submarine-launched missiles. ", "Vanadium – irresolute mineralogist’s history

Vanadium (23) was discovered by Andres Manuel del Rio in 1801. Unfortunately the mineralogist could not decide what name he should choose. This is why vanadium was called by him brown lead, then panchromium and erythronium. A few other scientists thought that this new element was nothing more than impure chromium and finally Del Rio was convinced that they were right. When in 1831 a Sweden scientist rediscovered Vanadium, someone suggested that it should be named rionium, but fortunately this never happened. ", "Manganese – a secret of Spartan weapons

Manganese (25) is well known as an element which is widely used in production of stainless steel. Because this element was also found in the iron ores used in ancient times by Spartans, it is believed that manganese was the key element of exceptional hardness of Spartan weapons, which greatly contributed to their in ancient Greece. Ironically, Spartans probably didn’t know about the existence of manganese.", "Platinum – metal of the kings

For centuries gold was considered as the most noble element of the world, but in XVIII century King Louis XV of France declared, that platinum (78) will be now the metal for the kings. Platinum, because of its rareness was not able to satisfy desires of all sovereigns. Still, the frame of the crown of Queen Elizabeth the Queen Mother was made of platinum and became the first British Crown to be made of that metal.", //"Thallium – famous rat (and husbands') killer

Thallium (81) was used for many years as the most popular rat poison as well as the ant killer. Because it is highly toxic for humans, has no taste and is odorless it became very effective murder weapon, although it leaves distinctive effects of use - victims poisoned by thallium usually loose all hairs. Use of thallium is forbidden in many countries. ", "Astatine – “hide and seek' element

Astatine (85) is the rarest naturally occurring element on Earth. It is estimated, that on Earth there is only 28g of naturally occurring astatine. Fortunately this element can be synthesized by bombarding bismuth with energetic alpha particles. Astatine is highly radioactive and for now it has no commercial uses.", "Protactinium – a good way to waste money

Protactinium (91) because of its high radioactivity and toxicity is used only in scientific research. Still, in 1961 in U.K. from 60 tons of waste materials was produced 125g of pure protactinium. The whole process cost 500,000 USD, protactinium was then sold to laboratories for a cost of 2.800USD per gram. ", "Cerium – how to make fire

Cerium (58) is similar to iron in color and luster, but it is very soft and ductile. Cerium ignites spontaneously in air at 65 to 80 °C, it can even ignite if scratched with a knife. It is also major component of ferrocerium, which is used commonly in lighters as a flint.", "Tungsten – a hot wire

Tungsten (74) is a metal with highest melting temperature – 1650°C. Due to this as well as its ability to be drawn into very thin metal wires, it is commonly used in light bulbs. Tungsten carbide is very hard and thus is often used in mining machines. Without tungsten, the carbide-enforced mining machines the tunnel France-UK could not be built.", "Chlorine – the first chemical weapon

Chlorine (17) is an element which can be found in any house. It is a part of the kitchen salt and it us commonly used as a bleach. But on April 22nd, 1915 it became something more – it became a human killer, used as a first chemical warfare weapon. The chloride gas and other, chloride-based gases, killed thousands of soldiers during the I World War.", "Plutonium – an artificial sun

Plutonium (94) is heavy, radioactive and highly toxic metal. Plutonium does not exist in natural form on earth. Although it can be found in extremely small amount in the uranium ore as a byproduct of the nuclear reactions, generally it must be produced artificially in nuclear reactors. The plutonium device was used in the first nuclear warfare test – the Trinity Test, creating first artificial „sun' on earth.", "Bismuth – a life saver

Bismuth (83) is heavy, diamagnetic metal. Although it has many useful properties, only one of them is particularly interesting: some of its alloys have very low melting temperatures. It allows to use bismuth alloys as thermal fire detectors and safety devices (for example for emergency shutdown of electricity when short-circuited). Many lives were saved thanks to this property of Bismuth.", "Cobalt - Goblin money

Cobalt (27) is responsible for pollution and degradation of nickel and was always big problem for miners. Because cobalt was also spotted in silver mines, there are some legends, that it was placed there by goblins or kobolds who had stolen the silver. For the miners cobalt was useless, it became valuable in XVIII century, when scientists discovered that cobalt instead of bismuth could be the source of the blue color in glasses.", "Aluminium – women's metal

Aluminium (13) is a well known element. This light metal is used almost everywhere - look around and you will find surely something made from an aluminium. Cars, aircrafts, computers – aluminium is everywhere. But not everyone knows that aluminium is also the most wanted metal by women – the aluminium oxide with trace amount of chromium is better known as ruby, the second best jewel, bested only by the diamonds. ", "Boron – a recipe for a mummy

Boron (5), or rather its salts which can be found in natron, were very important at the process of mummification. To remove all moisture, embalmers were covering the corpse with natron and were inserting pouches with this mineral into the body. After 40 days of such treatment the dried body was ready for bandaging.", "Sulfur - what is the smell of the hell?

We all know that so called smell of sulfur (16) is distinctive to all inhabitants of Hell. In fact sulfur is odorless and the diabolic smell is in real the odor of hydrogen sulfide. If you want to know what is the real smell of Hell, shatter an rotten egg, but for your sake don't try this at home.", "Cadmium – a nuclear safety switch

Cadmium (48) is metal best known from electrical batteries and accumulators. But it has also many other uses, one of them is serving as a safety switch for nuclear fission reactors. If a uranium fission reaction goes out of control, placing several cadmium rods inside reactor will considerably slow down the fission process, effectively turning the unstable reactor off.", "Iron – a core of the giant stars

Iron (26) is a very well known element. It is the most abundant metal on Earth (and even in the universe), used in industry to make steel. Iron is a final element produced in process of stellar nuclear synthesis. Every other existing heavier element is an effect of catastrophic star explosions called supernovas", "Silicon is not silicone

Silicon (14) is the second most abundant element in the Earth's crust and also the source of many mistakes. Many people interchange words “silicon' and “silicone', while the first of them is an element and the second is a chemical compound which contains silicon. Remember that breast enhancement is done using pure silicone, not pure silicon.", "Gold - the most ductile metal of the world

We all know that gold (79) is a precious metal and is commonly used in jewelry. The main reason of this is that gold is the most ductile and malleable metal. A single gram of gold can be beaten into a sheet of one square meter. This ability of gold caused that even the Ancients were able to make very decorative pieces of art from this metal.", "Fluorine - even the noble gases can't be neutral

Almost all people over the world meet fluorine (9) every evening while brushing teeth. Fluorine is also added to water in the process of purification. This element is also the most reactive of all known elements. It can create chemical compounds even with some of the noble gases like krypton, xenon and radon.", "Nickel – a sign of visitor

Nickel (28) is a second most abundant metal on Earth, however, most of it's mass concentrates in the planet's core. Large quantities of this metal exists together with iron in meteorites, and thus nickel is often considered a sign of meteoritic origin of metal concentrations on Earth.", "Titanium – amazing metal

Titanium (22) is a metallic element, well known from the fact that it is as strong as steel while it is only 43% of its weight. Up to this day it is the only material that easily forms structural and functional connection with human bones an thus is widely used in orthopaedic implants. Another interesting feature: titanium is the only element that burns in nitrogen (without oxygen) if heated to 800°C.", "Magnesium – a flash powder

Magnesium (12) is light, flammable metal. Today it is used mostly to produce alloys, but several years ago it was commonly used in photography as a material for flashlights and, as a flash powder, it was also used in flares. Burning magnesium produces a white, brilliant light, and it is difficult to extinguish the flame. Once ignited, it burns under water, in the atmosphere of carbon dioxide and even in pure nitrogen. ", "Palladium – a future car's fuel storage

Palladium (46) is an element that in metallic state has an unique ability to absorb up to 900 times its own volume of hydrogen at normal temperature. Because hydrogen is often considered as fuel of the future in motorisation, it is possible that future cars will use large amount of palladium for fuel storage.", "Polon - politically incorrect element

Polon (84) was discovered by Pierre Curie and his wife, Maria Sklodowska in 1898. Because Poland was at this time under occupation of bordering countries, Maria decided that the name of this element should be connected with the name of her homeland. Although this decision was very controversial, the influence of Polish emigrants was so high that the name remained.", "Germanium – a pioneer of modern electronic

Germanium (32) was the first semiconductor discovered. It was commonly used between 1950 and 1970 in electronics. Later germanium was replaced by pure silicon in transistors, diodes and rectifiers because of better electrical properties of the Si. Because germanium, unlike other semiconductors, is very sensitive to infrared it is still used in spectroscopes and other optical equipment.", "Iodine – a key element for survivalists

Iodine (53) can be used to disinfect wounds and to sanitize surface water for drinking, so it can be found in almost every emergency kit. Potassium iodide tablets or drops are used to protect the thyroid from highly radioactive iodine-131. After the catastrophe in Chernobyl in 1986 potassium iodide was the most wanted medicine in the Eastern Europe and was nicknamed 'medicine against the Russians' by the democratic opposition.", "Neon – a light of Las Vegas

Neon (10) is an element which made city of Las Vegas a glowing pearl of the night. Placed in vacuum discharge tube, neon glows with intensive reddish-orange light. It was neon which gave a name to the whole family of glowing advertising signs, although other nowadays other noble gases are also used there. Nevertheless, neon was the first it is responsible for the look of Las Vegas as we know it today. ", "Xenon – fuel for cosmic travels

Xenon (54) is a noble gas used mostly in light devices like electronic flash lamps, stroboscopes, and blue-glowing neons. Recently a new use was found – as fuel of ion propulsion engines. Xenon's heavy molecular weight, ease of ionization and possibility of storing it in liquid state at normal temperature in high-pressurized containers made Xenon a natural choice for this.", "Krypton – a Superman's home

Krypton (36) is a noble gas best known from being used in the fluorescent lamps and powerful lasers. Spectral signature of the Krypton was used in 1960 to define a unit of length, the metre, but from 1983 that definition is no longer valid. Krypton gave a name to home planet of famous hero Superman and to his greater weakness, a „kryptonite', making this gas famous.", "Arsenic - the poison of the kings

Arsenic (33) was primary used as a poison by Arab alchemist named Jabir. Arsenic trioxide, which he prepared was odorless and tasteless powder and symptoms of poisoning were usually mistaken with some of common diseases of this times. Arsenic was commonly used as method of solving political disputes during the Middle Ages. Although arsenic was known poison it used to be also a medicine to treat syphilis.", "Calcium - stalagmites in your kettle

Calcium (20) is one of the most important elements in our diet and its deficit may cause severe health problems, like osteoporosis. Overabundance of calcium in water is responsible for problems with cleaning baths or basins and a slight calcium sediment can be found in almost every aquarium. The yellowish sediment in every kettle is nowadays caused by this element. If not cleared, it may even damage a heater in an electric kettle.", "Technetium – the first artificially produced element

Technetium (43) was a hole in the periodic table for a couple of years. Many researchers tried to find a lacking element from the half of XIX century, but without a success. For the first time technetium was created in 1936 in the Berkeley cyclotron. Because it was the first element that was artificially produced it was named technetium (after a Greek word meaning “artificial'). Only later technetium was found in stars, as a byproduct of their nuclear reactions.", "Copper – the first metal in use

Copper (29) is one of the two metallic elements that has a color other than a form of metallic gray. In ancient times, copper nuggets was used as a form of payment and to make jewelry and tools. The first use of copper is dated at least 6 thousand years prior to first use of another colored metal, the gold.", "Ununhexium – an element that disappears in the blink of an eye

Ununhexium (116) is a artificial element without other name than that of their atomic number. Up to day it is perhaps the shortest-living radioactive element, it's half-life time is only 47 ms, much quicker than the blink of an eye (about 100-150 ms). No more than a few atoms of ununhexium were produced to this day.", "Hydrogen – an element from which everything begun

Hydrogen (1) was one of three elements created before everything else, during the Big Bang, when the universe was born. Other elements was created later, when first stars were formed from enormous clouds of hydrogen. Their normal nuclear reactions and deaths as supernova's produced every other elements which exist today.", "Helium – the super liquid

Helium (2) is the only element that is known to enter the superfluid state. When cooled to bellow 1K, liquid helium stops to boil even when heated, can flow through capillaries with no measurable viscosity and can even creep surfaces that extents above the level of helium surface - against the force of the gravity!"];