INTERACTIVE EXPERIENCE
A chain of beginnings
Follow 576 parent lineages through as many as three radioactive daughters. Compare the atoms present with the rate at which they decay.
Enter the experimentORDER HIDING INSIDE CHANCE
Atoms &
Radiation
The smallest changes can reveal some of nature’s most reliable patterns.
Watch unstable nuclei transform, follow their descendants, and investigate the radiation they emit. Discover how randomness produces predictable averages.
TWO WAYS TO FOLLOW YOUR CURIOSITY
Choose a question.
See where it takes you.
NEW INTERACTIVE EXPERIENCE
Radiation Detective
Move a detector, insert a shield and collect a sample. Separate changes in the expected rate from the randomness of individual counts.
Enter the experimentIdeas you’ll explore
Half-life
The interval over which half a starting population is expected to remain.
Daughter products
A decay creates a new nucleus, which may itself be radioactive.
Activity
A rate of transformation, distinct from the number of atoms present.