metal

A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity. Metals are generally malleable—that is, they can be hammered or pressed permanently out of shape without breaking or cracking—as well as fusible (able to be fused or melted) and ductile (able to be drawn out into a thin wire). Around 90 of the 118 elements in the periodic table are metals; the others are nonmetals or metalloids, though elements near the boundaries of each category have been assigned variably to either (hence the lack of an exact count). Some elements appear in both metallic and non-metallic forms. Astrophysicists use the term "metal" to refer collectively to all elements in a star that are heavier than the lightest two, hydrogen and helium, and not just traditional metals. A star fuses lighter atoms, mostly hydrogen and helium, to make heavier atoms over its lifetime. Used in that sense, the metallicity of an astronomical object is the proportion of its matter made up of the heavier chemical elements. Many elements and compounds that are not normally classified as metals become metallic under high pressures; these are formed as metallic allotropes of non-metals, for example, physicists were able to keep hydrogen in its solid state under more than 3 million times the atmospheric pressure and deduce its metallic properties. The strength and resilience of metals has led to their frequent use in high-rise building and bridge construction, as well as most vehicles, many home appliances, tools, pipes, non-illuminated signs and railroad tracks. Precious metals were historically used as coinage.
Jigsaw puzzle - complicated jigsaw puzzle
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Jigsaw puzzle

Added 12 days ago by andi

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Obey the law - obey the law in the internet
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Obey the law

Added 13 days ago by Michalina

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Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 3 weeks ago by andi

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big turtle - this turtle is big, big
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big turtle

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For the patient - colorful jigsaw puzzle
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For the patient

Added month ago by andi

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Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 2 months ago by andi

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Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 2 months ago by andi

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flowers c.d - key and a bunch of daisies next to it
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flowers c.d

Added 3 months ago by stachna

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nuts and nuts - one of Emily Blincoe's works
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nuts and nuts

Added 3 months ago by Beatrycze

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Jigsaw puzzle - black and white puzzle
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Jigsaw puzzle

Added 3 months ago by andi

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Jigsaw puzzle - black and white puzzle
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Jigsaw puzzle

Added 3 months ago by andi

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Colorful puzzle - colorful canned paints
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Colorful puzzle

Added 3 months ago by andi

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Jigsaw puzzle - colorful jigsaw puzzle
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Jigsaw puzzle

Added 3 months ago by andi

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For the patient - complicated puzzle
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For the patient

Added 3 months ago by andi

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added 4 months ago by andi

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watchmaking - colorful jigsaw puzzle
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watchmaking

Added 4 months ago by andi

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Black glass mosaic - Black glass mosaic
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Black glass mosaic

Added year ago by Nina

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Black glass mosaic - Black glass mosaic
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Black glass mosaic

Added year ago by Nina

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Green glass mosaic - Green glass mosaic
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Green glass mosaic

Added year ago by Magda

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

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For the patient - complicated puzzle
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For the patient

Added year ago by andi

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

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Jigsaw puzzle - complicated puzzle
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Jigsaw puzzle

Added year ago by andi

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watchmaking - pocket watch with chain
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watchmaking

Added year ago by andi

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RTS Widzew - the best football club
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RTS Widzew

Added year ago by andi

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Jigsaw puzzle - Jigsaw puzzle that until your eyes hurt
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Jigsaw puzzle

Added year ago by andi

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Star Wars - photo from the star war series
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Star Wars

Added year ago by andi

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For the patient - a cool puzzle for the patient
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For the patient

Added year ago by andi

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steel minions - figures of steel minions
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steel minions

Added year ago by Barbara

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buildings c.d - door closed with a padlock
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buildings c.d

Added year ago by ssssbbbb

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nubilato - fbdl2ebvkhv3rhbpo3rhvoprv
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nubilato

Added year ago by frg54rbtbt4

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karol, scrap - The image changes the fold
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karol, scrap

Added year ago by karol

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bronze statue - a fountain or a bronze statue
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bronze statue

Added year ago by Julita

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bronze fountain - bronze fountain and frog
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bronze fountain

Added year ago by Julita

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