what is the most interesting thing you have investigated or found out in science?

Question: what is the most interesting thing you have investigated or found out in science?
- Keywords:
  interesting,
  investigate
Asked by anon-177050 to Urslaan, Becky on 9 Jun 2018. This question was also asked by anon-177001.
- Urslaan Chohan answered on 9 Jun 2018:
  
  I found out in my research that magnetism has a huge effect on how quickly some types of steel break in the presence of water. This has huge implications in many applications, such as in building nuclear reactors! I hope scientists take heed…

Question: what is the most interesting thing you have investigated or found out in science?