Are the tears caused by cutting onions different from sadness tears?
What primary sense does the common barn owl (Tyto alba) use to hunt?
In 1851, the Foucault pendulum demonstrated what? (a) The Earth revolves around the Sun (b) The first perpetual motion machine (c) That grandfather clocks were still in fashion (d) The earth rotates on its own axis
What is the difference between rogue waves and tsunamis?
What are known as ‘ghost particles’, because they are so difficult to find?
Which two metals can be combined to produce brass?
What was special about the first second of 2009?
What is a bogie? (a) the wheels and undercarriage on a train (b) a pre-cancerous lump growing on the spinal column (c) a slang term for astronauts’ food packs (c) a measurement unit used in tsarist Russia.
For what can we thank the cactoblastis caterpillar?