Science, nature & technology 30

From the quiz on 23/8/16.

  1. Ovis aries is the binomial name of which common farm animal? (Domestic) sheep

  2. Which planet of the Solar System has 27 known moons, all of which are named after characters from works by William Shakespeare or Alexander Pope? Uranus

  3. Nine-banded, screaming hairy and pink fairy (the smallest of all) are species of which insectivorous mammal native to the Americas? Armadillo

  4. What name, from the Latin for “chain”, is given to the curve with typical equation y = a cosh(x/a), which is assumed by a chain supported at each end and hanging under its own weight? Catenary

  5. In logic, which Boolean operation has the value 1 (true) if and only if its two inputs are different? XOR (exclusive OR)

  6. Which lower-case Greek letter commonly denotes statistical significance, the fine structure constant in physics and the angle of attack in aerodynamics? α (alpha)

  7. As indicated by its name, PET a type of tomography that produces an image of the body using the emission of which subatomic particle? Positron

  8. What name, from the Greek for “tree”, is given to any of the numerous short branches at one end of a neuron that transmit impulses to the cell body? Dendrite

  9. Which two physicists lend their surnames to an exotic state of matter, known as a condensate, that can be obtained by cooling a dilute gas (e.g. of rubidium atoms) to a temperature extremely close to absolute zero? (Satyendra Nath) Bose and (Albert) Einstein

  10. How many chemical elements have mismatched symbols — that is, at least one letter of their symbol does not appear in their standard English name? 11: potassium (K), iron (Fe), copper (Cu), silver (Ag), tin (Sn), antimony (Sb), tungsten (W), gold (Au), mercury (Hg), lead (Pb), sodium (Na)


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