If the motions are considered relative to an independent coordinate system, the aberration can be considered caused by the separate motions of the source and observer in that system
Fictitious Geography .... In science and also in mapping we are concerned with non-fiction generally in our work
Tides, A periodic change in the Earth or other planet, moon or celestial body, related to the locations of the Sun, Moon and other members of the Solar System, e.g., thermal tides are changes caused by heating and cooling of a body such as the Earth's atmosphere; gravitational tides are changes in figure and are caused by the attraction of other bodies. 3
A unit of area in the English system of measure, defined as 10 square chains (1 chain is 4 rods or 66 feet)
(Springer 2012) Discusses GIS for history from a non-technical viewpoint Brings together different schools of scholarship Closes a gap in the scholarly landscape Introducing an intellectual debate about technology in the humanities Showcases selected case studies of GIS-History-Humanities applications Geographical Information Systems (GIS) – either as 'standard' GIS or custom made Historical GIS (HGIS) – have become quite popular in some historical sub-disciplines, such as Economic and Social History or Historical Geography
CONFERENCES AND WORKSHOPS OUTSIDE RWANDA 1) In March 2008: Global Dialogues on Emerging Science and Technology (GDEST) 2008 Conference organized by US Department of State which took place in Cape Town, South Africa from 17 to 19 March 2008 and I have presented a paper on "Analysis of Data Sharing Environment and Major Challenges Currently Being Faced in Data Sharing in Rwanda"