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Oil-immersion objective lenses look superficially identical to non-oil-immersion lenses. In light microscopy , oil immersion is a technique used to increase the resolving power of a microscope . This is achieved by immersing both the objective lens and the specimen in a transparent oil of high refractive index , thereby increasing the numerical ...
Advanced Placement (AP) Human Geography (also known as AP Human Geo, AP Geography, APHG, AP HuGe, APHug, AP Human, HuGS, AP HuGo, or HGAP) is an Advanced Placement social studies course in human geography for high school, usually freshmen students in the US, culminating in an exam administered by the College Board. [1]
Underwater diving is the human practice of voluntarily descending below the surface of the water to interact with the surroundings, for various recreational or occupational reasons, but the concept of diving also legally extends to immersion in other liquids, and exposure to other pressurised environments. [1]
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic ...
Several factors influence the diver, including immersion, exposure to the water, the limitations of breath-hold endurance, variations in ambient pressure, the effects of breathing gases at raised ambient pressure, effects caused by the use of breathing apparatus, and sensory impairment. All of these may affect diver performance and safety. [1]
Original mapping by John Snow showing the clusters of cholera cases in the London epidemic of 1854, which is a classical case of using human geography. Human geography or anthropogeography is the branch of geography which studies spatial relationships between human communities, cultures, economies, and their interactions with the environment, examples of which include urban sprawl and urban ...
When the BP Deepwater Horizon drilling rig exploded in 2010 and spewed many millions of gallons of oil into the Gulf of Mexico, the disastrous spill damaged the economy, devastated the environment ...
Rice terraces located in Mù Cang Chải district, Yên Bái province, Vietnam Integrated geography (also referred to as integrative geography, [1] environmental geography or human–environment geography) is where the branches of human geography and physical geography overlap to describe and explain the spatial aspects of interactions between human individuals or societies and their natural ...