what is the most fascinating piece of equipment you have used and why? Is it a new piece of equipment or has it been

Question: what is the most fascinating piece of equipment you have used and why? Is it a new piece of equipment or has it been around a while?
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Asked by Jasmine to Laura on 10 Mar 2016.
- Laura Haworth answered on 10 Mar 2016:
  
  I find ultrasound fascinating and use this on a daily basis. Although it has been used for a long time, the technology is constantly evolving and what we can now use ultrasound for is amazing. I can use it to see inside the body to look and listen to the blood flow in the body.

Question: what is the most fascinating piece of equipment you have used and why? Is it a new piece of equipment or has it been around a while?