Bering Strait is between North America (Alaska) and Asia - not South America. 
The correct asnwer is: Central America: this includes such countries as Costa Rica, Nicaragua and Panama, together with the Panama Canal which allows ships to cross from the Atlantic to the Pacific. hope this helps
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Maybe there's an app for that? Some kind of time lapse app? Or maybe set up a magnifying glass or a crystal ball on a stand and a piece of paper under it. As the sun passes, it will might burn a line on the page. As to how you would read this line, you would need some kind of measurement system - maybe do a baseline the day before and use you watch to record start and finish times.