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An aquascope (also called bathyscope) is an underwater viewing device. It is used to view the underwater world often from dry land or a boat. It eliminates the water surface glare and allows viewing as far as water clarity and light permit. The underwater viewer can be used for observing reefs, checking boat moorings, secchi disks and other ...
Underwater vision is the ability to see objects underwater, and this is significantly affected by several factors. Underwater, objects are less visible because of lower levels of natural illumination caused by rapid attenuation of light with distance passed through the water. They are also blurred by scattering of light between the object and ...
Although the primary aim of aquascaping is to create an artful underwater landscape, the technical aspects of tank maintenance and the growth requirements of aquatic plants are also taken into consideration. [3] Many factors must be balanced in the closed system of an aquarium tank to ensure the success of an aquascape.
The company hopes that its habitats can catalyze a permanent human presence underwater, like an International Space Station (ISS) – which, since 2000, has allowed humans to live and work in ...
The scope of underwater exploration includes the distribution and variety of marine and aquatic life, measurement of the geographical distribution of the chemical and physical properties, including movement of the water, and the geophysical, geological and topographical features of the Earth's crust where it is covered by water.
Periscopes permit view outside of the vehicle without needing to cut these weaker vision openings in the front and side armour, better protecting the vehicle and occupants. A protectoscope is a related periscopic vision device designed to provide a window in armoured plate, similar to a direct vision slit.
Jesus Lizarzaburu, MD, a family physician with TPMG Grafton Family Medicine in Yorktown, Virginia, also recommends taking vitamin C a few weeks before the holiday season starts to help prevent ...
A viewing instrument is a type of optical instrument that is used to assist viewing or visually examining ... spotting scope; stereoscope; stroboscope; tachistoscope ...