Weather This Weekend, Nov 16
  • Friday

    Nov 16

    58° /23°F
    Partly sunny
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    • for hair frizz
    • Wind Gust: 14 mph
    • Precip: 8%
    • Hours of Precip: 0
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  • Saturday

    Nov 17

    30° /18°
    A bit of snow; much colder
    • Watch
    • for hair frizz
    • Wind Gust: 10 mph
    • Precip: 55%
    • Hours of Precip: 4
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  • Sunday

    Nov 18

    41° /24°
    Sunny; not as cold
    • Watch
    • for hair frizz
    • Wind Gust: 16 mph
    • Precip: 4%
    • Hours of Precip: 0
    More
Drought Colorado River

Dams: History, anatomy and common reasons for failure

November 12, 2018, 2:18:12 PM EST

Dams date back to around 2950-2750 B.C., when the ancient Egyptians built the first known dam, but it's not common to learn about their purpose and how they work. more

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