** Polar Atlas, historic Swedish diesel maker, later part of Atlas Copco

** Polar modulation like QAM a combination of PSK and ASK.

** Polar coordinate system ( 2D )

** Norway opens a natural gas field in the Polar Sea.

** Polar circle, either of two circles of latitude marking the extreme southerly points ( northern hemisphere ) or northerly points ( southern hemisphere ) at which the sun may remain above or below the horizon for 24 continuous hours at some point during the year

** Polar region, the region within the polar circles, referred to as the Arctic and Antarctic

** Polar climate, the climate of the polar regions, characterized by a lack of warm summers

** Polar front, the boundary region between the polar cell and the Ferrel cell in each hemisphere

** the French Polar Institute ( in Plouzané next to Brest )

** The Polar Express-Randy Thom, Tom Johnson, Dennis S. Sands and William B. Kaplan

** Polar moment of inertia, a property of an object related to its resistance to torsion

** The Alaska Film Archives, housed in the Alaska and Polar Regions section of the Rasmuson Library, hold the largest collection of film-related material about Alaska.

** Alfred Wegener Institute for Polar and Marine Research

** Canadian Polar Commission

** ABBA ( compilation with tracks licensed from Polar )

** Polar Shift ( 1991 )

** UAM Polar sail training ship

** Polar Coordinates

** Polyarnaya Zvezda ( Polar Star )

** Mars Polar Lander ( formerly the Mars Surveyor ' 98 Lander )

** Express kidnapping, a method of abduction where a small ransom that a company or family can easily pay is requested

** Examples may include: Hampton Inn, aloft, Holiday Inn Express, Fairfield Inn, Four Points by Sheraton, Days Inn, and La Quinta Inns & Suites

** TNT Airways ( part of TNT Express ), in Belgium and Papua New Guinea

** TNT Express, demerged from TNT N. V. in 2011 ; purchased by UPS in 2012

** The Greek ferry Express Samina sinks off the coast of the island of Paros ; 80 out of a total of over 500 passengers perish in one of Greece's worst sea disasters.

** The French paper L ' Express publishes a story of Georges Figon, who took part in the kidnapping of Mehdi Ben Barka.

** The Orient Express begins operation.

** New Musical Express, a British music magazine, publishes a story about two 13-year-old schoolgirls, Sue and Mary, releasing a disc on Decca and adds " A Liverpool group, The Beatles, have recorded ' Love Me Do ' for Parlophone Records, set for October 5 release.

** Federal Express purchases Flying Tiger Line for approximately 800 million U. S. dollars.

** The first midair collision occurs, between a Daimler Airway de Havilland DH. 18 and a Compagnie des Grands Express Aériens Farman Goliath over Poix-de-Picardie, Amiens, France.

** Airport Express in Beijing ( opened 2008 )

** Travel Greyhound ( coach arm of National Express Dundee )

** G & N Wishart ( Rural bus and coach arm of National Express Dundee )

** National Express Coventry ( bus operation in and around Coventry, UK-A subsidiary of National Express West Midlands )

** American Express Lounge ( American Express )

** Centurion American Express Lounge ( American Express )

** Service to the Poquonock Park & Ride Lot is provided by the local 30, 32, 34, 36, and 54 routes as well as the 15-Windsor Express route, which provides express service between Poquonock Avenue and Downtown Hartford via I-91.

** United Express operated by ExpressJet Airlines ( Houston-Intercontinental )

** US Airways Express operated by PSA Airlines ( Charlotte )

** 2003 – 2005: MG Express

** Von Ryan's Express -- Walter Rossi