T1

From Wikipedia, the free encyclopedia

T1 may refer to many things including:

• Digital Signal 1, originally over a "T1" interoffice "trunk" or "Transmission Level 1" telecommunications line in North America and Japan
• T1 General tax form used in Canada for personal tax returns
• T1 spinal nerve
• Cork encoding (or T1 encoding) is a character encoding
• The first of the thoracic vertebrae in human anatomy
• UltraSPARC T1 microprocessor made by Sun Microsystems
• PRR T1, an innovative duplex locomotive developed by the Pennsylvania Railroad

T-1 may refer to:

• T-1A Jayhawk, a twin-engined jet aircraft used by the United States Air Force
• Terrible One, BMX company
• A trade name for A514 steel
• Fuji T-1, a Japanese trainer aircraft

T₁ may refer to:

• A mathematical property of the topological T₁ spaces
• The spin-lattice relaxation time, the mean time for an individual nucleus to return to its equilibrium state in Nuclear magnetic resonance