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SCIENCE TRIVIA XVI

151) What is the average number of readers for a published scientific paper?


There are a lot of scientific papers out there. One estimate puts the count at 1.8 million articles published each year, in about 28,000 journals. Who actually reads those papers? According to one 2007 study, not many people: half of academic papers are read only by their authors and journal editors, and the average number of readers for a published scientific paper is only 0.6.

152) What is the scientific term for brain freeze?


Brain freeze, or sphenopalatine ganglioneuralgia is a form of headache commonly associated with consumption (particularly quick consumption) of cold beverages or foods such as ice cream.

153) What do scientists use to clean up radioactive waste?


Scientists have discovered that sunflowers can pull radioactive contaminants out of the soil.

154) What type of chemical compound is held together by ionic bonds?


A salt is an ionic compound that results from the neutralization reaction of an acid and a base.

155) What is it called when one celestial body obscures another?


An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.

156) What do you call an interstellar cloud of dust?


A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Contrary to fictional depictions where starships hide in nebulae as thick as cloud banks, in reality a nebula that is barely visible to the human eye from Earth would appear larger, but no brighter, from close by.

157) A mushroom is an example of _______.


A mushroom (or toadstool) is the fleshy, spore-bearing fruiting body of a fungus.

158) Which of the following is biggest?


The Universe is all of time and space and its contents.

159) How many chambers does the human heart have?


The human heart has four chambers, which are the left and right atria and the left and right ventricles.

160) What temperature is absolute zero?


Absolute zero is the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to -273.15°C or -459.67°F.


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