K-Ar dating calculation

Working through a calculation for K-Ar dating (good to have some prior experience with e and logarithms). Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/life-earth-universe/life-in-universe-topic/v/detectable-civilizations-in-our-galaxy-1?utm_source=YT

• #تحصیلات_و_یادگیری
• #تاریخذاری