An hourglass or sandglass, sand timer, sand clock or egg timer is a machine used to measure the passage of time. It consists of two glass bulbs linked vertically with the aid of a slender neck that approves a regulated waft of a substance (historically sand) from the higher bulb to the decrease one. Typically the top and decrease bulbs are symmetric so that the hourglass will measure the equal length regardless of orientation.
The particular length of time a given hourglass measures is decided via elements which include the extent and coarseness of the particulate matter, the bulb dimension and the neck width. Depictions of an hourglass as a image of the passage of time are located in art, mainly on tombstones or different monuments, from antiquity to the current day. The shape of a winged hourglass has been used as a literal depiction of the popular Latin epitaph tempus fugit "time flies".

In this sub category you can download free PNG images: Hourglass Learning. In this category "Hourglass" we have 34 free PNG images with transparent background.

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  Sand Animated Hourglass Free Clipart HQ
  Format: PNG
  Resolution: 853x982
  Size: 49.4KB
  Downloads: 82
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  Sand Animated Hourglass Free Photo
  Format: PNG
  Resolution: 1242x2400
  Size: 233.8KB
  Downloads: 90
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  Sand Animated Hourglass PNG Free Photo
  Format: PNG
  Resolution: 535x720
  Size: 143.3KB
  Downloads: 50
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  Photos Sand Animated Hourglass Free Transparent Image HQ
  Format: PNG
  Resolution: 1500x1500
  Size: 135.7KB
  Downloads: 91
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  Sandglass Animated Hourglass Free PNG HQ
  Format: PNG
  Resolution: 1580x2292
  Size: 431.1KB
  Downloads: 56
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  Hourglass Photos
  Format: PNG
  Resolution: 512x512
  Size: 57.4KB
  Downloads: 472
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  Sandglass Animated Hourglass Free Transparent Image HD
  Format: PNG
  Resolution: 627x1062
  Size: 516.2KB
  Downloads: 69
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  Sandglass Animated Hourglass Download HD
  Format: PNG
  Resolution: 800x1497
  Size: 41.8KB
  Downloads: 100
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  Animated Hourglass PNG File HD
  Format: PNG
  Resolution: 650x862
  Size: 143.8KB
  Downloads: 81
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  Animated Hourglass Free Clipart HQ
  Format: PNG
  Resolution: 548x548
  Size: 52.0KB
  Downloads: 48
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  Hourglass Photo
  Format: PNG
  Resolution: 512x512
  Size: 30.1KB
  Downloads: 427
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  Animated Hourglass Download Free Image
  Format: PNG
  Resolution: 750x750
  Size: 121.1KB
  Downloads: 68
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  Sand Animated Hourglass Free HD Image
  Format: PNG
  Resolution: 600x600
  Size: 52.5KB
  Downloads: 82
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  Animated Hourglass Free Download Image
  Format: PNG
  Resolution: 600x600
  Size: 65.7KB
  Downloads: 94
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  Sandglass Animated Hourglass Free PNG HQ
  Format: PNG
  Resolution: 1370x1920
  Size: 493.9KB
  Downloads: 71
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  Sandglass Animated Hourglass Download HD
  Format: PNG
  Resolution: 535x720
  Size: 99.2KB
  Downloads: 90
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  Sandglass Animated Hourglass HD Image Free
  Format: PNG
  Resolution: 753x548
  Size: 17.2KB
  Downloads: 83
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  Photos Sandglass Animated Hourglass PNG Free Photo
  Format: PNG
  Resolution: 1439x1999
  Size: 81.6KB
  Downloads: 92
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  Sandglass Pic Animated Hourglass Free Download PNG HD
  Format: PNG
  Resolution: 600x600
  Size: 70.8KB
  Downloads: 70
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  Sand Animated Hourglass Download HD
  Format: PNG
  Resolution: 640x1178
  Size: 230.6KB
  Downloads: 52

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