These will also be the problems posed for the SYPT 2025. 1. Invent Yourself: Paper Boomerang. Make a returning boomerang from a sheet of paper by folding and/or cutting. Investigate how its motion depends on relevant parameters. 2. Air Muscle. Place a balloon inside a cylindrical net (as is sometimes used to wrap garlic) and inflate it. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.