Demonstrations in Physics was an educational science series produced in Australia by ABC Television in 1969. The series was hosted by American scientist Julius Sumner Miller, who demonstrated experiments involving various disciplines in the world of physics. The series was also released in the United States under the title Science Demonstrations. This program was a series of 45 15 minute shows on various topics in physics, organized into 3 units: Mechanics, Heat and Temperature/Toys, and Waves and Sound/Electricity and Magnetism.