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SCIENCE TRIVIA XVII

161) What are the bones in your hands called?


There are five metacarpal bones in each hand that connect your fingers to your wrists.

162) What term describes the hazy-looking patch surrounding the nucleus of a comet?


The coma is the nebulous envelope around the nucleus of a comet. It is formed when the comet passes close to the Sun on its highly elliptical orbit; as the comet warms, parts of it sublime.

163) How long is a parsec?


A parsec is a unit of length used to measure large distances to objects outside our Solar System. One parsec is equal to about 3.26 light-years (31 trillion kilometres or 19 trillion miles) in length.

164) What does the orbital cavity contain?


The orbital cavity contains the eyeball and its associated muscles, vessels, and nerves.

165) Herpetology is the study of what?


Herpetology (from the Greek meaning "to creep") is the branch of zoology concerned with the study of amphibians and reptiles.

166) Who was the first scientist to observe live cells?


Although English Scientist Robert Hooke described a honeycomb-like network of cellulae (Latin for little storage rooms) in cork slice using his primitive compound microscope, the first man to clearly observe a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra.

167) What do you call the application of science to criminal investigation?


Forensic scientists collect, preserve, and analyze scientific evidence during the course of an investigation. While some forensic scientists travel to the scene to collect the evidence themselves, others work from a laboratory, performing analysis on objects brought to them by other investigators.

168) Which extinction event was caused by human activity?


The Holocene extinction, otherwise referred to as the Sixth extinction, is the ongoing extinction event of species during the present epoch (beginning approximately 10,000 BC) mainly due to human activity. The present rate of extinction may be up to 140,000 species per year, making it the greatest loss of biodiversity since the Cretaceous-Paleogene extinction event.

169) Stephen Hawking is a vigorous supporter of what interpretation of quantum mechanics?


The many-worlds interpretation implies that all possible alternate histories and futures are real, each representing an actual "world" (or "universe"). In layman's terms, the hypothesis states there is a very large--perhaps infinite--number of universes, and everything that could possibly have happened in our past, but did not, has occurred in the past of some other universe or universes.

170) Who is "the Science Guy"?


Bill Nye is an American science educator best known as the host of the PBS children's show Bill Nye the Science Guy (1993-1998).


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