A Black box I designed that is able to withstand all levels of ambient heat. 

The box has sensors in the middle which notify of any breach.

How it works:

- TTAN block airflow in the simulation thus blocking ambient heat.

- NTCT is the fastest cooling element and cools down the TTAN quickly as long as the NTCT is bellow melting point.

- LN2 helps woth the cooling.

- DMG and psts together make a solid wall that protects and repels agains most bombs.

- The DMG also helps blow away most of the air around it also blowing away the heat.

Does not use any indestructable materials