If no one knows what is at the bottom of a black hole, then why isn’t anyone sending a camera down there or inventing

Question: If no one knows what is at the bottom of a black hole, then why isn't anyone sending a camera down there or inventing something to find out?
- Keywords:
  black hole,
  technology,
  universe
Asked by krazykatie to Chris, Josh, Rebecca, Rob, Susan on 17 Jun 2015.
- Susan Cartwright answered on 17 Jun 2015:
  
  Because (1) the nearest black hole is several hundred light years away, so we can’t actually get there, and (2) by definition, once you fall into a black hole you can’t send any information out (escape velocity > speed of light) so the camera would not be able to send back any of its pictures!

krazykatie commented on 17 Jun 2015:

Thanks so much Susan! I’ve always wondered about that.

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Question: If no one knows what is at the bottom of a black hole, then why isn't anyone sending a camera down there or inventing something to find out?