 Item number SCP-1718 Object Class Euclid Special Containment Procedures Experimental Containment Unit 6852 shall be provided additional power and coolant as necessary to prevent breach. A 2 megawatt power plant is currently under construction on site to be dedicated solely to the ECU-6852 and is projected to be adequate for another 10 years. ECU-6852 is composed of four elements, the core, the gyroscope, the bath, and the superstructure. The central element of the core is a seamless spherical shell of an aluminum █████ 12mm thick, a radius of 1.63m. This shell was centrifugally cast around a robotic tool which annealed and paused the interior surface to a reflectivity of 2017GAU before itself deposing via ██████, which also evacuated the interior atmosphere to 0.5 picopascals, calculated indirectly from the contraction of the aluminum shell under external pressure. Gloss Units Surrounding the alloy shell is a buffer of 654 concentric graphing shells, each one atom thick. In this configuration, it provides the highest tensile strength of any manufactured material to date and acts as a perfect rotational bearing, allowing the innermost sphere to remain at rest or to rotate about any axis, at any speed, independent of the gyroscope. The core is enclosed within the gyroscope. A shallow ultra-polished pucillica, 2cm thick, weighing 60.5kg, assembled from two hemispheres and plated on its interior surface with 7nm of niobium. The gyro is hydrodynamically suspended in a superfluid helium-4 bath at 1.95K and rotates in a plane parallel to the surface of the Earth, clockwise as viewed from above. At this temperature, the niobium is superconducting as it rotates it induces a magnetic field. The bath is housed and circulated within the superstructure, a cylindrical doer of depleted uranium with ██████ magnetic drives, mag drives, for accelerating and breaking the gyro. A separate insulated reservoir, plumbing, instrumentation, and controls to provide circulation of 2.5ML of total coolant. Authorized personnel may refer to document ECU-6852-S, volumes 2-4 for complete schematics. The hyperreflective surface of the innermost shell suppresses incident radiation across the wide frequency range via ██████ interference. Previous research demonstrates that quantum defects throughout the graphene lattices within the core occur naturally and self-repair spontaneously within the gyroscope's magnetic field. Calculation suggests the graphene shells can be treated as a composite material in a metastable state with a mean of 10⁵³ plus-minus 10⁶³ defects at its current temperature and pressure. At 70 Kelvin, comparable graphene samples were strong enough to contain sustained pressure of 18 MPa and impulses of 4.2 gigapascals per millisecond. As the temperature is reduced, the strength increases exponentially. During the design phase, the containment unit was projected to consume 13.75 kW to maintain systems in a standby state between breach attempts by any SCP within. When active, the bulk of the energy expended by an attempt to breach containment from within will be subsumed by the vacuum, uncertainty resulting from the tremendous London moment of the superconducting field. The remaining fraction will be converted to heat in the helium bath. For an arbitrary impulse of energy, this conversion occurs on the order of 100 picoseconds. The resilience of the containment device is limited only by the attainable flow rate, which is maintained automatically, and the size of the coolant reservoir. So long as the helium remains in the superfluid state, maximum flow rate is far superior to that of any cryogenic coolants. Below 2.17 Kelvin The prototype is rated up to 100 kW of power consumption and has 10 times the coolant necessary for operation of maximum power. In a worst-case scenario, using all the coolant and power resources reasonably available to the Foundation, the device is theoretically capable of containing plasma on the order of FTP, and physical force is approaching 50% of the transverse-sacre inversion limit. 10 to the negative 15th power times the Planck temperature, or around 10 to the 17th power Kelvin. As a baseline, based on metrics taken from its current containment procedures and history of breaches, indefinite containment of an entity comparable to SCP-076 will require around 17 kW at most. As the device was designed as a proof-of-concept prototype, no particular attention was paid to how an SCP would actually be placed into the core. It was assumed this could be engineered into a later version of the device. Description SCP-1718 is an energetic anomaly that arose during a project managed by the ECRG to explore the limits of containment science. The Experimental Containment Research Group Project Timeline From January to October 2009, ECRG conducted computational simulation, sample fabrication, and prototype elements of the device. Date Event December 2, 2009 ECRG submits Proposal 6852 and ██ Containment System to the O5 Research Subcommittee, Doctors Andrews and Headley, Principal Investigators. February 23, 2010 Proposal 6852 is approved and funded. March 15, 2010 Construction of the core begins in May 22, at Site-06. May 2010 Project Timeline is accelerated by three months when ionic sonication techniques for the deposition of graphing are mastered ahead of schedule, allowing for the addition of a new layer every four hours. November 7, 2010 The gyroscope is assembled at 111 Kelvin. It is cooled to 77 Kelvin over the next 33 days. February 2, 2011 Construction is halted for three weeks due to an industrial accident while cast in the DU doer, or a staffer killed, including Dr. Headley. August 5, 2011 The superstructure is complete. The gyro is assembled into the doer, using liquid nitrogen at 76 Kelvin as the initial coolant. September 1, 2011 Coolant temperature 65 degrees Kelvin Hydrodynamic rotation of the gyroscope initiated at 0.3 RPM October 31, 2011 Coolant at 9.3 Kelvin Rotation 52 RPM Niobium makes superconducting transition, and the core becomes impervious to most sensors. January 2, 2012 Coolant at 8 Kelvin Rotation 72 RPM The mag drives are first engaged to assist hydrodynamic acceleration of the gyro. February 6, 2012 Coolant at 7 Kelvin Rotation 104 RPM A significant seismic event in the vicinity of Site-12 causes the rupture of a separate system condensing helium-4 for future use. One assistant researcher is killed, two staff are seriously injured. The gyro is stable throughout the event and its aftershocks. May 17, 2012 Core rotation 112 RPM Temperature stabilized at 5.2 Kelvin, while staff initiates a replacement of nitrogen coolant with helium-4. October 18, 2012 Helium-4 at sufficient purity to resume cooling, 115 RPM January 3, 2013 Helium-4 reaches 2.17 Kelvin and transitions to a frictionless superfluid state. As predicted, hydrodynamic acceleration no longer functions. Once the bath became superfluid, the mag drives were used to accelerate the gyro over 24 hours to the target 150,000 RPM. The process completed 57 minutes earlier than predicted, but otherwise without incident. The coolant temperature was further reduced to 1.6 Kelvin to provide a safety margin. At this rate of rotation, relativistic effects cause a special case of the dynamical system air effect to arise between the opposing points of the niobium shell, bombarding the core with ██████ per design, completing the containment protocol. Instrumentation evidence power, temperature, and gyroscopic stability at least two orders of magnitude better than its design tolerance, near or beyond the sensitivity of most of the instrumentation. On February 1, in the wake of an unrelated cognitive hazard event, Dr. Andrews was administered a class B amnestic to save his life. He necessarily lost about five years of memories, including all knowledge of Project 6852. Though quickly re-emerged in the project documentation and retrained by its former subordinates, he recovered no particular proficiency for the science and engineering techniques he previously pioneered. He expressed profound disbelief of the possibility of several key components of the design of the containment system. In the original project plan, the ECU was scheduled to burn in for ninety days. In light of the fact that the research team had effectively lost both of its principal investigators, the containment tests were deemed successful, and deactivation of the device was initiated early, on February 8, after thirty-five days of nominal operation. The plan called for a five-day mag drive spin-down at constant temperature to 0.3 RPM at 1.6 Kelvin, followed by a four-month warm-up to 77 Kelvin, whereupon the core would be dismantled and inspected for stress and spallation defects. Seven hours after the mag drives were reversed, no significant slowing of the gyro could be detected. A diagnostic test of the squids that monitored rotation revealed a calibration drift had occurred, and suggested that the gyro was likely spinning far faster than expected. In its first insight since amnestic treatment, Dr. Andrews theorized that the Corleolis effect, neglected in the original design analysis, had been freely accelerated into a frictionless gyro for over a month. However, there was significant disagreements between the research assistants as to whether or not this was a sound application of basic physics. If true, points along the surface of the gyro were calculated to have a speed approaching 0.1C. At the direction of the O5 research subcommittee, the strength of the mag drives were eventually increased a hundred-fold in an attempt to slow rotation. After 55 hours of continuous braking, the recalibrated squids were able to detect the rotation speed slowing through 352,000 rpm. Seventeen hours later, as the rotation speed slowed to 153,000 rpm, close to the original design speed, an unexpected and unexplained blow of heat into the helium-4 bath was detected. Automated systems compensated as intended, increasing total power draw, neglecting the magnetic drives from 13.74 kW to 14.15 kW, and preventing any rise in temperature. The strength of the mag drives was immediately reduced to originally planned levels. Over the course of the next hour, as the magnetic drives slowed the gyroscope to 152,000 rpm, slightly above the original target rate, power draw climbed to 14.89 kW. Though small, the 1.15 kW difference in draw power theoretically corresponds to a sustained explosive force of over a kiloton of TNT within the core. In an abundance of caution, the mag drives were adjusted to hold the rotation rate steady at 152,000 rpm, in order to allow further study without risking breach. Since then, the power necessary for stabilization has continued to climb at about 500 watts per day. If the design theory is correct, the current level of power draw implies forces or temperature within the core equivalent to 0.7 megatons of continuous explosive force. Form A, ECRG Proposal 6987, a 1.10 scale research model of ECU-6852, is attached. Doctors Andrew and Smink, principal investigators. Addendum B, Proposal 6987 is hereby rejected. Regarding the prototype, the Foundation will do what it's best at. ECU-6852 is hereby designated SCP-1718. First move on, gentlemen. O5 Research Subcommittee.