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.
Population of Rwanda 2014. As of 1 January 2015, the population of Rwanda was estimated to be 12 444 550 people. This is an increase of 2.79 % (338 014 people) compared to population of 12 106 536 the year before. In 2014 the natural increase was positive, as the number of births exceeded the number of deaths by 325 182.