pascal versor politruk roentgen katal farad Bq X207 oersted CEDE yotta joule Danesfield centimorgan pedon weber candela X103 sueldo SI diterpenoids polydisc thaum lithostratigraphy comitatensis siemens kibibit tuffet megagram dalton Speedlite cM smoot eotvos Tiglian exonuclease phiQunda