index - a numerical scale used to compare variables with one another or with some reference number. 1  margin of error, margin of safety, safety margin - the margin required in order to insure safety; in engineering the margin of safety is the strength of the material minus the anticipated stress.
Nutty Ways to Celebrate Squirrel Appreciation Day This Year. SQUIRRELS! Whether you love them or loathe them, National Squirrel Appreciation Day, January 21st, is a great time to take a few moments and learn about these nutty animals. If you count flying squirrels we have 10 tree species in North America.
Celebrating Pocky Day: How the Chocolate Snack Is Making Sharing Bigger, Happier. If there were ever a year the country needed to share happiness, 2016 would be it â and at Ezaki Glico USA's offices, the Japanese-based food company is preparing to meet those needs.