Thermometers 1 A thermometer is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter from Greek, meaning to measure.hermometers 1 A thermometer is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter from Greek, meaning to measure.
The absolute value of GDP in Rwanda rose â¬213 $490 million with respect to 2013. The GDP per capita of Rwanda in 2014 was â¬491 $662, â¬5 $23 higher than in 2013, it was â¬486 $639.
GDP per capita in Cameroon averaged 895.79 USD from 1960 until 2014, reaching an all time high of 1356.13 USD in 1986 and a record low of 640.70 USD in 1967.he Gross Domestic Product per capita in Cameroon was last recorded at 1021.58 US dollars in 2014.