Pegasi, following the full-speed spin-up of gyro #2 yesterday. Each full-speed spin-up takes most of a day. Helium gas is flowed over the gyro for 90 seconds, and tests are run to ensure that the ...

(GP-B) Gravity Probe B is the most sensitive and precise test-and-measurement experiment that designers have ever devised and implemented. The GP-B experiment aims to verify the frame-dragging ...

The Gyro Spin Spectre Optical Levitating Gyro Spinner stands out as a marvel of engineering and design. This precision-machined gyroscope, crafted from stainless steel, the gyroscope spinning top ...

At five weeks past launch, the Gravity Probe B mission is now about half way through the Initialization and Orbit Checkout (IOC) phase of the mission. Thus far, the team has successfully transmitted ...

A brief overview of polhode motion in the gyro rotors The gyroscope’s polhode motion is akin to the common “wobble” seen on a poorly thrown (American) football, though it shows up in a much different ...

At 9:57:24 am Pacific Daylight Time on Tuesday, April 20, 2004, the Gravity Probe B spacecraft had a picture-perfect launch from Vandenberg Air Force Base in South-central California. The Boeing Delta ...