Early use of cocoa in the Amazon; bathroom humor in Roman latrine; ramp at ancient Egyptian quarry; details of conquistador armor from Florida shipwreck
Biochemical analysis finds cocoa drinking at Amazonian site as far back as 5000 years ago
Roman latrine from Turkey had an apt mosaic on the floor - depictions of bathroom humor
New find at Egyptian quarry site shows how physics helped move huge stones up a ramp
Longterm study of armor piece found in Florida shipwreck reveals new details of decoration