lauantai, 15.02 ![How Do They Do It?](https://tvepg.eu/fi/finland/channel/discovery_science-fb.png)
How Do They Do It?
How do they make the world's finest harp strings? How do they build roof windows that can keep out a hurricane? And, How do they make Belgian waffles?
How do they make the world's finest harp strings? How do they build roof windows that can keep out a hurricane? And, How do they make Belgian waffles?