Educator Ruth Mork teaches kids about clocks — from sundials to cuckoo clocks to roosters. Ruth Mork introduces clocks of all kinds — sundials, candle clocks, hourglasses, cuckoos, even a rooster! She ...
For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with ...
While Eddie sticks to his schedule, Barry admires his new watch and we learn all about telling time. Our teacher reads us a time-ly story called Mr. Topper's Toy Store. Meanwhile, Eddie keeps time by ...