what was the first thing you made

Question: what was the first thing you made
- Keywords:
  first,
  invention,
  research
Asked by 322kvna26 to David, Colin, Caoimhe on 20 Nov 2014.
- David Taylor answered on 20 Nov 2014:
  
  My first project was about the propellers of ships: the really big ones that they use on supertankers. Sometimes they break and fall off when the ship is in the middle of the ocean – not nice! I was helping the manufacturers to improve the way they make these propellers so that they wouldn’t break. Big metal objects like this are often made by casting, which means they heat the metal up until it melts and pore the liquid metal into a mould. That’s pretty exciting to watch!
- Caoimhe O'Neill answered on 21 Nov 2014:
  
  The first thing I made in engineering was a tower from cardboard and strings. It was a way to teach us how structures work and was great fun!

Question: what was the first thing you made