Animal Eyes

Mount Rushmore went through several changes. In one version of the monument, words were to be etched into the rock face, words that would briefly describe the history of the United States, highlighting nine important events between 1776 and 1906. But due to funding, and issues over wording, this plan was ultimately scrapped!

Churros used to be the size of a bread stick and they are served for breakfast. They are typically fried until they become crunchy and then sprinkled with sugar and cinnamon. They’ve had a controversial history and some say they originated in China – the churros we know today have taken many shapes and forms, but they are certainly European.

The smallest sample that can be clearly observed under a light microscope is a 500 nanometer long object. It is possible to observe smaller objects than this, but their features might be distorted. Anything smaller than 500 nanometers loses detail because of the wave nature of light.