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Timex Datalink is flight certified by NASA for space missions and is one of four watches qualified by NASA for space travel. [43] [44] [45] The various Datalink models are used both by cosmonauts and astronauts. For instance during Expedition 1 the crew log for January mentions:
Omega cal. 321 movement. The Speedmaster was not originally designed for space exploration. Instead, it was introduced in 1957 as a sport and racing chronograph following on from the early chronographs of the 1920s and 1930s, including the Omega 28.9 chronograph, which was Omega's first small wrist chronograph, complementing Omega's position as the official timekeeper for the Olympic Games.
Timex Datalink is flight certified by NASA for space missions and is one of the watches qualified by NASA for space travel. The Casio G-Shock DW-5600C and 5600E, DW 6900, and DW 5900 are Flight-Qualified for NASA space travel. [96] [97] Various Timex Datalink models were used both by cosmonauts and astronauts.
The United States has developed many space programs since the beginning of the spaceflight era in the mid-20th century. The government runs space programs by three primary agencies: NASA for civil space; the United States Space Force for military space; and the National Reconnaissance Office for intelligence space. These entities have invested ...
But the key to a successful NASA nap is to wake yourself up before you fall into a deep slumber, including stage 3 and REM sleep, says Terry Cralle, RD, a certified clinical sleep educator and ...
In 1993, Casio introduced the DW-6300 Frogman, which was the first ISO 6425 certified diver's watch in the G-Shock lineup. [14] [13] The Frogman also marked the start of the MAN or "master of G" line of G-Shocks which was used to introduce new features and functions in the G-Shock lineup. Notable watches which introduced such features are as ...
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