Recent Examples of iridium from the Web
When the Earth was forming, most iridium sank below the molten crust.
Ni says the company is looking for cheaper options to replace iridium, a rare and expensive metal.
Project officials said once the iridium melts, the plutonium will be dispersed into the atmosphere.
There is reason to believe that some asteroids are rich in valuable metals, such as platinum and iridium.
The most resilient bits will likely be the casings around its plutonium power source — the 72 marshmallow-sized pellets are encased in iridium and graphite containers designed to withstand re-entry into Earth's atmosphere or an explosion at launch.
To make a truly large-scale impact, the company may need to find cheaper electrode catalysts than silver and iridium oxide, says Haotian Wang, a chemist at Harvard University.
The dangerous substance was encased in super-dense iridium as a safeguard for Cassini’s 1997 launch and has been used for electric power to run its instruments.
First the outer shield, then the aluminum components and finally the parts made out of iridium will burn away, all vaporizing in perhaps a minute.
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Origin and Etymology of iridium
First Known Use: 1804See Words from the same year
IRIDIUM Defined for Kids
medical Definition of iridium
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