Scientists have long debated the origins of these underpinning rocky flotation aids.
Physicians and theologians debated their origins and meanings, poets, authors, politicians, peasants, and prophets were guided by them, or used them to convince others.
For decades, archaeologists and anthropologists have debated the origins of the first donkeys, as well as where domestication occurred.
For decades, archaeologists have debated the origins of several small iron beads excavated from ancient Egyptian graves in a site known as Gerzeh cemetery.
For decades, physicists have debated the origins of high-temperature superconductivity the ability of some materials to carry electricity without resistance at temperatures up to 138 kelvin.
The ancient Greeks called it ilinggous -- denoting eddies of smoke or whirlpools -- and since antiquity, doctors have debated its origin.
While some scientists looking at the virus genome debated its origin, Peter Palese, chairman of microbiology at Mt . Sinai School of Medicine found cause for optimism about the future.
Scientists have long debated the origin of the moon.
"There will be ample opportunity to debate the origins of this problem," he said.
"There will be ample opportunity to debate the origins of this problem," Mr. Bush said in the Rose Garden on Friday.
