#science

1337 posts
  • ciara1 4d

    Equinox

    Equinox-the time or date (twice each year)
     at which the sun crosses the celestial equator, 
    when day and night are of approximately equal length
     (about September 22 and March 20).
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  • ciara1 4d

    Cloudish

    Do moisture rich content clouds float like the drift in the sea.
    Both substances are like a liquid one is light enough to be carried by dust and other particles collect moisture in the sky.
    Making water molecules are now too heavy to fly.
    So they fall.
    Become part of the swift seats by and by.
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    Cloudish

  • ciara1 1w

    Heat

    Since the surface of the Sun is very hot (6,000 K), it emits much of its energy at short wavelengths. 
    The cooler surface of Earth (300 K) emits most of its energy at longer, infrared wavelengths, wavelengths too long to be detected by the human eye.
     Humans cannot see infrared wavelengths, but they can feel warmth on their skin when this energy is absorbed. Thus, it is sometimes casually referred to as “heat radiation.”
    Energy across all wavelengths from the Sun must pass through the atmosphere before reaching Earth’s surface. The atmosphere filters, absorbs, and reflects incoming solar energy, as shown in Figure 22.6. On average, Earth as a whole reflects about 30 percent of the total energy back into space, with two-thirds of the reflection occurring from clouds. The amount reflected at any one time depends on the extent of cloud cover, the amount of dust in the atmosphere, and the extent of snow and vegetation on the surface. Substantial changes in any of these influencing variables could increase or decrease the Page 548reflectivity, leading to increased heating or cooling of the atmosphere.
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    ©ciara25
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    Heat

  • ciara1 1w

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    Solar Energy

    The sun reflects the earth.
    radiant energy emitted by the sun. By Ciara Webb

  • ciara1 1w

    observed lapse rate

    the higher-altitude parts of the atmosphere lose energy to space more readily than the lower-altitude parts. Thus, the lowest part of the atmosphere is warmer, and the temperature decreases with increasing altitude. On average, the temperature decreases about  for each kilometer of altitude  This change of temperature with altitude.
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    ©ciara1

  • ciara1 1w

    The mercury barometer was invented in 1643 by an Italian named Torricelli. He closed one end of a glass tube and then filled it with mercury. The tube was then placed, open end down, in a bowl of mercury while holding the mercury in the tube with a finger. When Torricelli removed his finger with the open end below the surface in the bowl, a small amount of mercury moved into the bowl, leaving a vacuum at the top end of the tube. The mercury remaining in the tube was supported by the atmospheric pressure on the surface of the mercury in the bowl.
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    Barometer

  • ciara1 1w

    It is salt crystals that is suspended in the atmosphere come from the mist created by ocean waves and the surf.
    This mist forms an atmospheric aerosol of seawater that evaporates, leaving the solid salt crystals suspended in the air.
    The aerosol of salt crystals and dust becomes well mixed in the lower atmosphere around the globe, playing a large and important role in the formation of clouds.
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    Tiny Particles

  • ciara1 3w

    Composition Of The Atmosphere

    A sample of pure, dry air is colorless and odorless and composed mostly of the molecules of just three gases: nitrogen 
    (N2), oxygen 
    (O2), and argon (Ar). 
    Nitrogen is the most abundant (about 78 percent of the total volume), followed by oxygen (about 21 percent), then argon (about 1 percent). 
    The molecules of these three gases are well mixed, and this composition is nearly constant everywhere near Earth’s surface.
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    Composition Of The Atmosphere

  • smartsam 3w

    Angle

    Angle is the Curve of Time!

    ©SmartSam

  • smartsam 3w

    Light

    Light is Shadow of Energy!

    ©SmartSam

  • ciara1 4w

    Emissions

    Gas vaporization.
    Gases overflowing in the gas city chamber.
    The production of discharge. By Ciara Webb

  • ciara1 4w

    Anthropogenic

    Human nature it is like Michael Jackson said.
    Created by humans.
    Everything currently is man-made.
    What we thought was in God's creations are now man-made.
    But God's creations were the everlasting thing ever made. By Ciara Webb
    ©ciara1

  • ciara1 4w

    Albedo

    The Turning point of day and night.
    The brightness of a surface is the amount of incoming
    light reflected. By Ciara Webb

  • ciara1 4w

    Latitudinal

    Latitude, Platitude.
    Going to earth's equator seeing
    the stars above.The diurnal relating to the day.
    The heat overflowing in the center. By Ciara Webb
    ©ciara1

  • ciara1 4w

    When we boil or heat up food in the oven, stove, microwave etc… A Hot object emits electromagnetic radiation (light) to heat up cooler objects like the the Sun emits light to heat
    up Earth.
    Lighter colors and also whites and metallic substances absorb less of the illuminating light, and as a result heat up less; but otherwise color makes little difference as regards heat transfer between an object at everyday temperatures and its surroundings, since the dominant emitted wavelengths are nowhere near the visible spectrum, but rather in the far infrared. Emissivities at those wavelengths are largely unrelated to visual emissivities (visible colors); in the far infra-red, most objects have high emissivities. Thus, except in sunlight, the color of clothing makes little difference as regards warmth; likewise, paint color of houses makes little difference to warmth except when the painted part is sunlit.
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    Electromagnetic Radiation

  • ciara1 4w

    A hard term to remember. A layer of Earth's atmosphere.
    The thermosphere is directly above the mesosphere and below the exosphere.
    It extends from about 90 km (56 miles) to between 500 and 1,000 km (311 to 621 miles) above our planet. The Solar activity strongly influences temperature in the thermosphere.
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    Thermosphere

  • ciara1 4w

    Ozone is a special kind of oxygen molecule.
    Normal oxygen molecules (O2), the kind we need to breathe, has two oxygen atoms. Ozone molecules (O3) have three oxygen atoms.
    Ozone is found in two different layers in Earth's atmosphere. "Bad" ozone is found in the troposphere, the layer nearest the ground.
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    Ozone Molecule

  • ciara1 4w

    A gas that does not undergo chemical reactions under a set of given conditions.
    The noble gases often do not react with many substances1 and were historically referred to as inert gases.
    Inert gases are used generally to avoid unwanted chemical reactions degrading a sample.
    These undesirable chemical reactions are often oxidation and hydrolysis reactions with the oxygen and moisture in the air
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    Inert Gases

  • ciara1 4w

    Have you ever wondered why it is so cold outside that you wish it can warm up or get hot?
    Well, let me tell you the scientific secret to this question.
    The reason why we feel so much cold air in the fall and winter
    is what you call Greenhouse gases.
    Greenhouse gases are gases in Earth's atmosphere that trap the heat from entering the planet.
    They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere cold.
    The main greenhouse gases are Water vapor. Carbon dioxide.
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    Green House Gases

  • ciara1 4w

    Diamonds and pearls are made
    Out of crystals.
    Diamond and pearls are equal.
    Solid in which atoms are orderly arranged and repeated.
    No crystals can’t be treated.
    Chemical reactions must be competed.
    Quartz, on the other hand don’t meet.
     It is a mineral with atoms of silicon and oxygen in a different crystal structure in its meter.
    No matter how many kinds of atoms are present.
    Each mineral has its own defined chemical composition or range of chemical compositions in the end.
     A range of chemical compositions is possible because the composition of some minerals can vary with the substitution of chemically similar elements.
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    Crystal Clear