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  2. Crookes radiometer - Wikipedia

    en.wikipedia.org/wiki/Crookes_radiometer

    This explanation is still often seen in leaflets packaged with the device. The first experiment to test this theory was done by Arthur Schuster in 1876, who observed that there was a force on the glass bulb of the Crookes radiometer that was in the opposite direction to the rotation of the vanes. This showed that the force turning the vanes was ...

  3. Glass etching - Wikipedia

    en.wikipedia.org/wiki/Glass_etching

    Glass etching, or " French embossing ", is a popular technique developed during the mid-1800s that is still widely used in both residential and commercial spaces today. Glass etching comprises the techniques of creating art on the surface of glass by applying acidic, caustic, or abrasive substances. Traditionally this is done after the glass is ...

  4. Galileo thermometer - Wikipedia

    en.wikipedia.org/wiki/Galileo_thermometer

    A risen orange orb denotes 24 °C. A Galileo thermometer (or Galilean thermometer) is a thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. The individual floats rise or fall in proportion to their respective density and the density of the surrounding liquid as the temperature changes.

  5. Michelson–Morley experiment - Wikipedia

    en.wikipedia.org/wiki/Michelson–Morley_experiment

    Research fields. Past experiments. Current experiments. Scientists. v. t. e. The Michelson–Morley experiment was an attempt to measure the motion of the Earth relative to the luminiferous aether, [A 1] a supposed medium permeating space that was thought to be the carrier of light waves. The experiment was performed between April and July 1887 ...

  6. Lithography - Wikipedia

    en.wikipedia.org/wiki/Lithography

    t. e. Lithography (from Ancient Greek λίθος (líthos) 'stone' and γράφω (gráphō) 'to write') [1] is a planographic method of printing originally based on the immiscibility of oil and water. [2] The printing is from a stone ( lithographic limestone) or a metal plate with a smooth surface. It was invented in 1796 by the German author ...

  7. Blue bottle experiment - Wikipedia

    en.wikipedia.org/wiki/Blue_bottle_experiment

    Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...

  8. Make the Season Bright by Cutting the Cost of Christmas ... - AOL

    www.aol.com/2012/11/20/cut-the-cost-of-christmas...

    Christmas decorations should evoke holiday cheer, but with the high cost of trees, ornaments, lights and more, their price tags may just bring out holiday tears. Here's how to lower the cost of ...

  9. Engraved glass - Wikipedia

    en.wikipedia.org/wiki/Engraved_glass

    Engraved glass is a type of decorated glass that involves shallowly engraving the surface of a glass object, either by holding it against a rotating wheel, or manipulating a "diamond point" in the style of an engraving burin. It is a subgroup of glass art, which refers to all artistic glass, much of it made by "hot" techniques such as moulding ...

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