Interstellar dust
When Mount Vesuvius erupted in 79 A.D., an estimated 2,000 people were killed, but the exact number of missing individuals is unknown. Many bodies were buried under layers of ash and pumice, which preserved their forms but made it difficult for archaeologists to accurately determine the total number of victims.
When the periodic table was first created by Dmitri Mendeleev in 1869, there were some gaps or missing elements that had not yet been discovered. Mendeleev left spaces in his table for these unknown elements, accurately predicting both their properties and where they would be located in the table once they were discovered. Over time, these missing elements, such as gallium and germanium, were discovered and filled in the gaps as Mendeleev had predicted.
yes, properties of an element depends on its atomic number and atomic mass unless it is an exception and the atomic number and atomic mass of unknown elements are known by placing it in periodic table
He predicted that elements with the predicted properties would be discovered to fill in these gaps.
Unknown
unknown
According to the recent reports the missing Malaysian aircraft was deliberated diverted to unknown destination by someone who had aviation experience.
Missing, Excused Absence - Whereabouts Unknown (EAWUN), Duty Status Whereabouts Unknown (DUSTWUN), Deceased
POW is abbreviation for "Prisoner of War," and MIA is the abbreviation for "Missing in Action." If a military member is missing and we can confirm he is alive in enemy hands, he is classified "POW." If he is missing during wartime and status is unknown, he is classified as "MIA"
It is unknown, as mentions of personal relationships are missing from his website.
Pages are missing, but who removed them and for what purpose remains unknown.
Unknown error code-24 during application installation means that some critical component of the setup is missing.
unknown losers
180 minus two known angles = unknown angle
Anything. Expect DOS, old versions of Windows,Almost all Linux systems. There is a problem - Most of these systems are unknown on internets. Linux systems are completely free - just download and install. But they are unaffected by hackers, backdoors, most of viruses. Hope that helps. Unknown.
x86
Pritzker Military Library Presents - 2006 Unknown Soldiers The Story of the Missing of the First World War 1-12 was released on: USA: 22 June 2006