Solidgeometryhasenabledastronomerstocalculatethepositionsoftheheavenlybodiesrelativetooneanother.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.
In1974HenryAaronbrokeBabeRuth'smonumentallifetimerecordof714homeruns.