>>935896496
>>935896499
>>935896500
>>935896502
>Behold our great leap forward in submersible technology!
>It's an ultra high pressure bathysphere with a sealed mechanical hatch that can hold 2 or 3 people, just like Alvin!
>It has life support, navigation and scientific equipment in a depressurized hull section around bathysphere that holds 2 or 3 people, just like Alvin!
>And.... It can... GO A BIT DEEPER THAN ALVIN!!! (Alvin could already go to the bottom of the world's oceans except for some super deep trenches like the challenger deep)