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Vocabulary List from "Prime Number: .064"

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  1. prime number
    an integer that has no integral factors but itself and 1
    Prime Number: .064
  2. helium
    a light colorless element that is one of the six inert gases
    By KENNETH CHANG

    The weight in pounds (about an ounce) that one cubic foot of helium can lift, at sea level.
  3. deflate
    release contained air or gas from
    "It held its unladen shape, and even began to obviously deflate without being stretched out by its hypothetical (and ultimately nonexistent) load," Mr. Denmead wrote.
  4. cubic
    having three dimensions
    By KENNETH CHANG

    The weight in pounds (about an ounce) that one cubic foot of helium can lift, at sea level.
  5. inflate
    fill with gas or air
    Multiply that by 0.064 pounds per cubic foot of helium, and the balloon, fully inflated, might have had a lifting force of about 67 pounds.
  6. calculator
    a small machine that is used for mathematical calculations
    So let's break out our calculators.
  7. sea level
    level of the ocean's surface
    By KENNETH CHANG

    The weight in pounds (about an ounce) that one cubic foot of helium can lift, at sea level.
  8. buoyancy
    the tendency to float in water or other liquid
    Moreover, the buoyancy of the helium would have been diminished in the thinner air of the Denver area, giving it less power to lift.
  9. hypothetical
    a conjectural possibility or circumstance
    "It held its unladen shape, and even began to obviously deflate without being stretched out by its hypothetical (and ultimately nonexistent) load," Mr. Denmead wrote.
  10. errant
    straying from the right course or from accepted standards
    Was there enough helium in the errant balloon that escaped into the Colorado sky last Thursday to have whisked the 6-year-old Falcon Heene up and away for a journey across the plains?
  11. approximate
    not quite exact or correct
    If you approximate its shape as a squashed sphere, the balloon would have had a volume of about 1,050 cubic feet.
  12. distorted
    so badly formed or out of shape as to be ugly
    Ken Denmead at Wired.com also argued that had Falcon been aboard, the downward pull of the boy's weight would have noticeably distorted the shape of the balloon.
  13. plausible
    apparently reasonable, valid, or truthful
    The boy weighed about 37 pounds, according to The Associated Press, so at first glance it appears plausible that Falcon could have been inside.
  14. sphere
    a round three-dimensional closed surface
    If you approximate its shape as a squashed sphere, the balloon would have had a volume of about 1,050 cubic feet.
  15. diminish
    decrease in size, extent, or range
    Moreover, the buoyancy of the helium would have been diminished in the thinner air of the Denver area, giving it less power to lift.
Created on 十月 23, 2009 (updated 十月 26, 2009)

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