Think of a Number

Season 3 Episode 2: The Science of See-through Sand

He cooks, looks, hits, breaks and bends... glass. See some glass over 3,000 years old, a teardrop that goes with a bang and a singer who has a smashing time. Meanwhile, see if you can see through this one. Divide a clock face with two straight lines so that the numbers in each part are equal.

Genre:

Family, Kids

Seasons:

5

Episodes:

30

Cast:

Johnny Ball

Quality:

HD

Duration:

30 min

First Air:

1978

Rating:

7.7