Summary: In this video, the creator attempts to waterproof a piano by sealing it with silicone and filling it with water. They gradually add water to the piano, testing its sound quality with underwater microphones at various levels. Eventually, they overfill the piano, causing it to leak, but manage to stop the leak with tape. They then swim inside the piano before ending the video.
Note: This summary provides a brief overview of the video's content, which includes various experiments involving water and a piano.
Sure, here are the key facts extracted from the text:
1. The author attempted to make a piano waterproof by sealing it with various materials.
2. The author filled the piano with water in multiple stages, starting with 10 liters and increasing to 130 liters.
3. The author tested the sound of the piano with both above-surface and underwater microphones at different water levels.
4. There was a leak in the piano when it was overfilled, causing water to spray through the keys.
5. The author attempted to use Flex Tape to fix the leak.
Please note that these are the factual points extracted from the text, and they do not include opinions or commentary.