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  2. Large low-shear-velocity provinces - Wikipedia

    en.wikipedia.org/wiki/Large_low-shear-velocity...

    Several hypotheses have been proposed for the origin and persistence of LLSVPs, depending on whether the provinces represent purely thermal unconformities (i.e. are isochemical in nature, of the same chemical composition as the surrounding mantle) or represent chemical unconformities as well (i.e. are thermochemical in nature, of different chemical composition from the surrounding mantle).

  3. Occupancy grid mapping - Wikipedia

    en.wikipedia.org/wiki/Occupancy_grid_mapping

    Occupancy Grid Mapping refers to a family of computer algorithms in probabilistic robotics for mobile robots which address the problem of generating maps from noisy and uncertain sensor measurement data, with the assumption that the robot pose is known. Occupancy grids were first proposed by H. Moravec and A. Elfes in 1985.

  4. List of online map services - Wikipedia

    en.wikipedia.org/wiki/List_of_online_map_services

    T Map by SK Telecom; One Navi by KT corporation; Spain. Spanish official cartography website, including National Topographic Maps MTN50 (1:50,000 scale) and MTN25 (1:25,000 scale). SITPA-IDEAS, Asturias regional maps. Sweden. Eniro.se, also covers Denmark, Finland and Norway; Hitta.se; Thailand "Longdo Map", by Longdo.

  5. Hypsometric tints - Wikipedia

    en.wikipedia.org/wiki/Hypsometric_tints

    Hypsometric tints (also called layer tinting, elevation tinting, elevation coloring, or hysometric coloring) are colors placed between contour lines to indicate elevation. These tints are shown as bands of color in a graduated scheme or as a color scheme applied to contour lines themselves; either method is considered a type of Isarithmic map .

  6. Scientists mapped the world’s rivers over 35 years. They ...

    www.aol.com/news/scientists-mapped-world-rivers...

    The flow of water through the planet’s nearly 3 million rivers is changing rapidly, with potentially drastic implications for everything from drinking water supplies to flood risks, according to ...

  7. Ziggurat algorithm - Wikipedia

    en.wikipedia.org/wiki/Ziggurat_algorithm

    Ignoring for a moment the problem of layer 0, and given uniform random variables U 0 and U 1 ∈ [0,1), the ziggurat algorithm can be described as: Choose a random layer 0 ≤ i < n. Let x = U 0 x i. If x < x i +1, return x. Let y = y i + U 1 (y i +1 − y i). Compute f(x). If y < f(x), return x. Otherwise, choose new random numbers and go back ...

  8. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    AOL Mail welcomes Verizon customers to our safe and delightful email experience!

  9. 5 Items From the 1970s That Are Worth a Lot of Money - AOL

    www.aol.com/finance/5-items-1970s-worth-lot...

    Technically, anything over 20 years old can be coined “vintage.”But when you truly think of items worth this title, your brain doesn’t go to Beanie Babies.