Spot the Difference

The Sullivan Island Light in Charleston, SC is the most powerful lighthouse in the Western Hemisphere. It originally had 28 million candelas, but the light was too strong, and the power was lowered to 1.2 million candelas. Even with this change, light beaming out of this lighthouse can be seen over 26 nautical miles away!

The Vikings have the reputation of being savage barbarians – however, that is not entirely true. They were mostly focused on establishing trade routes and had a complex and nuanced culture. The unfavourable image of Vikings as brutal raiders originates in written reports by monks, who were frequent victims of Viking pillages.

For approximately 200 years, microscope technology remained relatively unchanged. In the 1850s, however, Carl Zeiss, a German engineer, developed improvements for the device! Joseph Jackson Lister also helped eliminate the unequal bending of light hitting the microscope lens, leading to further improvements!