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Where 99% of the gold on Earth is concentrated
Most of the gold on Earth is concentrated in the Earth's core, beyond human ability to mine.
Metal
Browse ScienceInfo articles and explainers related to Metal.
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Articles about Metal
604 published items.
Discover science
Revealing the uses of Roman dodecahedron discovered in Belgium
Archaeologists believe that the dodecahedron may have had a religious or magical function for the Romans.
Archeology
Rare Roman-era coin hoard discovered in German mountains
A metal detectorist in Germany has discovered a rare treasure trove of nearly 3,000 Roman coins. Experts have no idea how or why the huge hoard got there.
Space science
Amazing Phenomenon in Space: Why is the International Space Station Rusting?
In the vast universe, the International Space Station is like a bright star, attracting the world's best astronauts to gather here.
Space science
Surprised to know the identity of the Russian missile debris 'hunter'
Contrary to what many people imagine,
Discover science
Nano-sized water bubbles filmed forming out of air
Thanks to a new technique, scientists have directly observed nano-sized water bubbles forming with a palladium metal catalyst for the first time.
Space science
Breakthrough technology enables rockets to use any metal as fuel
New technology opens up a turning point for space exploration, when rockets do not need to return to Earth to refuel.
Discover science
How was steel born?
Researchers don't know for sure when steel was invented, but some of the earliest examples of steel date back to the 1st millennium BC in Central and South Asia.
1001 mystery
The Truth About the Mysterious Betz Sphere: Alien Technology or Secret Super Weapon?
Some believe the mysterious Betz sphere, a steel ball found on their property by a Florida family in 1974, is a piece of alien technology.
History
History of syringes and needles
In medical literature, the origin of the syringe can be traced back to the early years of the AD. Since then, syringes can be made of all kinds of materials from metal,…
Health
Research shows heavy metal poisoning increases the risk of cardiovascular disease
Exposure to heavy metals such as cadmium, uranium and copper can cause not only cancer, neurological and reproductive problems, but also cardiovascular disease, a new st…
Archeology
Unearthed a 300-year-old coin hidden by a Polish scammer
Metal detectorists have unearthed a treasure trove of coins that may have once belonged to a charlatan who hid in the mountains of south-central Poland after scamming pe…
Archeology
How did prehistoric people make metal objects?
5,000 years ago, people moved from the Stone Age to the Bronze Age thanks to the advent of metallurgy, separating metals from impurities.
Archeology
Experts were stunned by the test results of the 'immortality' drug found in an ancient tomb
Immortal pills or elixirs of life often appear in classic Chinese literary works, but did they really appear in ancient Chinese society?
Environment
The culprit caused a series of Alaska rivers and streams to turn orange
Warmer climate causes permafrost to melt, releasing the metal ores inside into rivers and streams, causing them to turn rusty.