Background The stimulated Raman effect provides an efficient means for producing coherent optical signals throughout the visible and infrared portion of the spectrum using a single laser source as exciter and either a crystal or a cell containing a gas or liquid as the target. The Raman-shifted output retains the high-intensity well-collimated monochromatic properties of the original laser. The objectives of the research program presented in the report were to investigate those aspects of the Raman effect relevant to the possibility of constructing a tunable Raman laser in which continuous tuning over tens of angstroms could be expected. Document Archive…
Author: John Greenewald
Background On February 10, 2020, The Black Vault filed a FOIA request for all documents that pertain to QAnon. It took two days for the CIA to issue their response, which was the fact that they could neither “confirm no deny” the existence or non-existence of records pertaining to QAnon. They state that the mere existence (or non-existence) of records pertaining to QAnon, would be classified. Document Archive CIA “Glomar Response” on QANON Documents [2 Pages, 0.5MB]
Background This report explains the accident involving USAir flight 427, a Boeing 737-300, which entered an uncontrolled descent and impacted terrain near Aliquippa, Pennsylvania, on September 8, 1994. Safety issues in the report focused on Boeing 737 rudder malfunctions, including rudder reversals; the adequacy of the 737 rudder system design; unusual attitude training for air carrier pilots; and flight data recorder parameters. Safety recommendations concerning these issues were addressed to the Federal Aviation Administration. Background Aircraft Accident Report – Uncontrolled Descent and Collision With Terrain, USAir Flight 427, Boeing 737-300, N513AU, Near Aliquippa, Pennsylvania, September 8, 1994 [370 Pages, 3MB]…
Background According to the objective of the audit: “We determined whether the material condition of the Integrated Tactical Warning/Attack Assessment Ground-Based Radars (ITW / AA GBR) is adequate to perform and sustain required capabilities. Specifically, we examined the infrastructure, maintenance,: planned or required upgrades, funding, and management of the radar sites.” Document Archive Evaluation of the Integrated Tactical Warning/Attack Assessment Ground-Based Radars, September 8, 2016 [55 Pages, 19MB]
Background Ramadan is observed by Muslims worldwide as a month of fasting (Sawm) to commemorate the first revelation of the Quran to Muhammad according to Islamic belief. This annual observance is regarded as one of the Five Pillars of Islam. The month lasts 29–30 days based on the visual sightings of the crescent moon, according to numerous biographical accounts compiled in the hadiths. With US troops deployed throughout Muslim countries, I requested under the Freedom of Information Act (FOIA) the rules, regulations and policies that were issued by CENTCOM to U.S. soldiers and personnel on how to act around the…