SCP-155

Item #: SCP-155

Object Class: Safe

Special Containment Procedures: SCP-155 must be kept in a standard containment locker. It must be kept behind a shatter-proof glass portal at all times. Tests must be conducted in a Class 4 Biohazard Containment Cell of at least 10,000 square meters.

SCP-155's containment area is to remain in a Type 2 Biohazard Containment Chamber. Any personnel entering the chamber must wear a full body suit and biohazard mask, or utilize an approved breathing apparatus. No personnel are allowed to enter without approval from the Site Director.

Description: SCP-155 is a large sphere, measuring approximately 1.7 meters in diameter. It is constructed of a nearly impenetrable, glasslike substance that appears to be made of biological material (see Addendum 155-1). Despite its appearance, SCP-155 remains structurally sound.

When any living structure is breached by direct damage or force, it will begin to rapidly expand and deform until the structural integrity breaks down entirely and it will implode.

The rate at which the structure deforms is proportional to the amount of structural integrity remaining and henceforth follows Logarithmic Inverse Square law, with 1/25th of an ounce as the minimum viable unit.

Any object within a 25 meter radius will begin to rapidly expand and degrade in this manner unless an equal amount of mass is being added to it continuously.

Addendum 155-1:

[Paste this text in a file on your computer, print it out, and then cut out the portion related to SCP-155.]

I am writing this in a failed attempt to get you to respond to my request for an interview. I was interviewed by Dr. ████████ last week when he discovered the anomaly's properties. I did not mention this to him and I'm writing this so that you can ask him about it.

We're conducting experiments with SCP-155 at the moment. We've almost perfected our containment procedures so that there are no structural flaws in the containment area that could cause catastrophic failure; we've also found a way to monitor the structure of the containment area. We have yet to find a way to make sure that the material inside isn't damaged or destroyed by the process. I thought that this would be something we could discuss.

If you'd like, I can provide you with whatever logs I have on the subject. -Dr. ████████