(Philadelphia) Carol Erickson talks to Dr. Jerry Geffen about transporting your family pets.
After a nerve-wracking stay in Kenya, adventure traveler Alex Boylan is enjoying all that Thailand has to offer. But will he be able to make it to Cambodia in one piece? He checks in from the road.
(Los Angeles) At best, the practice confuses travelers. Bob McCormick reports.
Natural science
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The Michelson–Morley experiment was used to disprove that light propagated through a luminiferous aether. This 19th century concept was then superseded by Albert Einstein's special theory of relativity.
In science, the term natural science refers to a rational approach to the study of the universe, which is understood as obeying rules or laws of natural origin. The term natural science is also used to distinguish those fields that use the scientific method to study nature from the social sciences, which use the scientific method to study human behavior and society; and from the formal sciences, such as mathematics and logic, which use a different methodology.
