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  2. Window (geology) - Wikipedia

    en.wikipedia.org/wiki/Window_(geology)

    A tectonic window, or fenster (lit. "window" in German), is a geologic structure formed by erosion or normal faulting on a thrust system. In such a system the rock mass ( hanging wall block ) that has been transported by movement along the thrust is called a nappe .

  3. Wood warping - Wikipedia

    en.wikipedia.org/wiki/Wood_warping

    The types of wood warping include: bow: a warp along the length of the face of the wood; crook: a warp along the length of the edge of the wood; kink: a localized crook, often due to a knot; cup: a warp across the width of the face, in which the edges are higher or lower than the center of the wood

  4. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Morphology problem. How are neural tissues formed in specific ways in different species? The formation of neural tissues in a certain way is necessary for the formation of certain goal-directed behavior for certain species.

  5. Fenestra - Wikipedia

    en.wikipedia.org/wiki/Fenestra

    The leaf window is also known as a fenestra, [5] and is a translucent structure that transmits light, as in Fenestraria. Examples of fenestrate structures in the fungal kingdom include the symmetrically arranged gaps in the indusium ("skirt") of the mushroom Phallus duplicatus , [ 6 ] and the thallus of the coral lichen Pulchrocladia retipora .

  6. Slab window - Wikipedia

    en.wikipedia.org/wiki/Slab_window

    Diagram of a cross-section of the Patagonia slab window. The Nazca plate and Antarctic plate are colliding with the South American plate at the Chile Ridge. [1]In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be ...

  7. Near-infrared window in biological tissue - Wikipedia

    en.wikipedia.org/wiki/Near-infrared_window_in...

    The near-infrared (NIR) window (also known as optical window or therapeutic window) defines the range of wavelengths from 650 to 1350 nanometre (nm) where light has its maximum depth of penetration in tissue. [1] Within the NIR window, scattering is the most dominant light-tissue interaction, and therefore the propagating light becomes diffused ...

  8. Bird–window collisions - Wikipedia

    en.wikipedia.org/wiki/Bird–window_collisions

    Windows fitted with a dotted grid pattern to prevent bird collisions There are several methods of preventing bird-window strikes. The use of ultraviolet (UV) signals to make windows appear visible to birds, while once one of the most common means of combatting this issue, is no longer recommended by experts.

  9. Optical window - Wikipedia

    en.wikipedia.org/wiki/Optical_window

    The optical window is the portion of the optical spectrum that is not blocked by the Earth's atmosphere. The window runs from around 300 nanometers ( ultraviolet-B ) up into the range the human eye can detect, roughly 400–700 nm and continues up to approximately 2 μm .