How do you measure the forces?

Question: How do you measure the forces?
- Keywords:
  force,
  measure
Asked by anon-243416 to Filipe on 18 Mar 2020.
- Filipe Richheimer answered on 18 Mar 2020:
  
  Nice question! I shine a laser on the backside of my needle. The more force applies on the needle, the more it bends. The more it bends, the more the laser coming from the needle will move from its original position. This gives me an idea of the force.

Question: How do you measure the forces?