Science

An Accurate "Log-ing" of Time

SciWorks Radio is a production of 88.5 WFDD and SciWorks, the Science Center and Environmental Park of Forsyth County, located in Winston-Salem. Follow Shawn on Twitter @SCIFitz.

Scientists use many tools to put a date on events of the past. A geologist can use relative dating, comparing rock layer ages against one another. Archeologists may use carbon 14 for an absolute date. Climatologists can access over a million years of climate data using ice cores. If you want to know when a historical log cabin in the mountains was built, you use dendrochronology.

Sunday's Lunar Eclipse Has Got It All

The total lunar eclipse, visible in the U.S. Sunday night, is the first since 1982 that's also a supermoon as well as a blood moon.