Catch up TV

Series 4: 6. Radio Telescope and Maze

Today, Maddie is finding things! First, she visits an observatory to see how a really big radio telescope uses powerful computers to collect radio waves from space and turn them into a picture we can see. She uses a special time-lapse camera to see how the telescope moves up, down and around as it finds the radio waves.\n\nNext, Maddie heads to a giant maze, where she starts at the entrance and tries to find the middle! She then heads to a craft workshop to see how a wooden maze is made using something called a maze blank. She uses her special slow-motion camera to see the wood shavings flying off as a special device called a CNC machine drills out the maze path onto a block of wood.

Source: CBeebies