You need specialized hardware - a simple banana would crush under the pressure.
In order to properly measure and preserve the dimensions of the banana, you would need a miniature submarine with a clear glass window.
How they managed to get the pizzas and school bus down there is not explained, however I trust that they did the measurements properly with pizza and school bus submarines.
A_norny_mousse@piefed.zip 4 months ago
This here.
Yesterday I read a book with lots of drawn (!) illustrations of the largest insects to a 5yo. It doesn’t work.