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scottcgruber

Joined 6 years ago from USA

  • 56
    Articles
  • 157
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  • 70
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  • What Are Contrails?
    79

    What Are Contrails?

    2 years ago

    Since the dawn of the aviation age, a new type of cloud has been appearing in our skies. Contrails, or condensation trails, are clouds that form in the wake of a passing aircraft at high altitude.

  • Why Do Bad Things Happen In Threes?
    2

    Why Do Bad Things Happen In Threes?

    4 years ago

    From natural disasters to celebrity deaths to household mishaps, it seems like tragedies always happen in sets of three. Why is this? Is it a simple coincidence, or a cosmic conspiracy?

  • Light Pollution: Our Vanishing Night Skies
    0

    Light Pollution: Our Vanishing Night Skies

    5 years ago

    For hundreds of thousands of years humans have looked to the night sky for navigation, timekeeping, and mythology - tracing out intricate constellations from the night's brightest stars. Today, even the brightest stars in our constellations are washed out by the orange night sky.

  • What Was The Last Universal Common Ancestor (LUCA)
    16

    What Was The Last Universal Common Ancestor (LUCA)

    6 years ago

    The Theory of Evolution predicts that all life descended from a single common ancestor. In the metaphor of the Tree of Life, this organism represents the trunk from which emerged the three branches of all life on Earth. Scientists studying the origins of life refer to this hypothetical organism as...

  • Examples of Living Fossils
    47

    Examples of Living Fossils

    6 years ago

    The Theory of Evolution predicts that living things will change over time, and the fossil record clearly shows that life on Earth has undergone a long history of gradual change. However, there have been some plants and animals that were so well-adapted to their environments that they have remained...

  • When Is the Age of Aquarius?
    11

    When Is the Age of Aquarius?

    9 months ago

    The dawning of Age of Aquarius is more than just a lyric from a 1970s musical. It is a very real astronomical phenomenon that will occur in the not too distant future. To understand when this new age will occur requires a bit of understanding of the constellations of the Zodiac, as well as the...

  • What Causes Twilight: The Physics of the Blue Hour
    5

    What Causes Twilight: The Physics of the Blue Hour

    4 years ago

    Twilight, the period of time just before sunrise and just after sunset, is probably best known for the stunning visual quality it brings to travel guide photos, dramatic movie establishing shots, and romantic walks on the beach. However, there is also some very interesting astrophysical science...

  • The London Underground Mosquito: Evolution In Action
    21

    The London Underground Mosquito: Evolution In Action

    6 years ago

    One of the most interesting examples of evolution of a new species in recent history comes from a rather infuriating creature: The London Underground mosquito.

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