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  2. Heat transfer - Wikipedia

    en.wikipedia.org/wiki/Heat_transfer

    Thermal transmittance is the rate of transfer of heat through a structure divided by the difference in temperature across the structure. It is expressed in watts per square meter per kelvin, or W/(m 2 K). Well-insulated parts of a building have a low thermal transmittance, whereas poorly-insulated parts of a building have a high thermal ...

  3. Let's-Read-and-Find-Out Science - Wikipedia

    en.wikipedia.org/wiki/Let's-Read-and-Find-Out...

    Year Pubd. Summary Topic Stage Baby Starts to Grow, A: Paul Showers: Rosalind Fry: 1969 Drop of Blood, A: Paul Showers: Robert Galster: 1967 1989 Human body: Stage 2 "Sid The Science Kid: A Cavity Is A Hole In Your Tooth" Jodi Huelin: 2010 Jellyfish Is Not a Fish, A: John E. Waters: Kazue Mizumura: 1979 Map Is a Picture, A: Barbara Rinkoff ...

  4. Crest and trough - Wikipedia

    en.wikipedia.org/wiki/Crest_and_trough

    Crest and trough in a wave. A Crest point on a wave is the highest point of the wave. A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point of the wave.

  5. Third grade - Wikipedia

    en.wikipedia.org/wiki/Third_grade

    In Brazil, third grade is the terceiro ano do Ensino Fundamental I, in this case, children begin their first year of elementary school at age 6 or 7 depending on their birthdate. Therefore, the 3rd year of elementary school is typically for students of 8 (96 months)–9 years (108 months) of age.

  6. Spot the difference - Wikipedia

    en.wikipedia.org/wiki/Spot_the_difference

    Solving "Spot the difference" by overlaying the left image (top left) with an inverse image (bottom left) of the right one (top right). Differences appear as non grey parts (bottom right) A way to solve a spot the difference puzzle digitally is to create a inverse version of one of the images to compare and to overlay it 50% on the other one.

  7. Science book - Wikipedia

    en.wikipedia.org/wiki/Science_book

    A science book is a work of nonfiction, usually written by a scientist, researcher, or professor like Stephen Hawking (A Brief History of Time), or sometimes by a non-scientist such as Bill Bryson (A Short History of Nearly Everything).

  8. The Tunnel Thru the Air; Or, Looking Back from 1940 - Wikipedia

    en.wikipedia.org/wiki/The_Tunnel_Thru_the_Air;...

    The Tunnel Thru the Air, Or, Looking Back from 1940 is a science fiction novel written by market forecaster William Delbert Gann in 1927. [1] In the Foreword, Gann hinted that this book is more than just a novel because it "contains a valuable secret, clothed in veiled language.

  9. Interflow - Wikipedia

    en.wikipedia.org/wiki/Interflow

    In hydrology, interflow is the lateral movement of water in the unsaturated zone, or vadose zone, that returns to the surface or enters a stream. [1] Interflow is sometimes used interchangeably with throughflow; [1] however, throughflow is specifically the subcomponent of interflow that returns to the surface, as overland flow, prior to entering a stream or becoming groundwater. [2]