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  2. List of spaceflight records - Wikipedia

    en.wikipedia.org/wiki/List_of_spaceflight_records

    The Apollo 10 crew (Thomas Stafford, John W. Young and Eugene Cernan) achieved the highest speed relative to Earth ever attained by humans: 39,897 kilometers per hour (11,082 meters per second or 24,791 miles per hour, about 32 times the speed of sound and 0.0037% of the speed of light). [14]

  3. QWERTY - Wikipedia

    en.wikipedia.org/wiki/QWERTY

    The key presses followed by spacebar generate a stand-alone mark.: grave accents (e.g. à, è, etc.) needed for Scots Gaelic are generated by pressing the grave accent (or 'backtick') key ` , which is a dead key, then the letter.

  4. Space bar - Wikipedia

    en.wikipedia.org/wiki/Space_bar

    The space bar, spacebar, blank, or space key, [1] is a key on a typewriter or alphanumeric keyboard in the form of a horizontal bar in the lowermost row, significantly wider than all other keys. Its main purpose is to conveniently enter a space , e.g., between words during typing .

  5. Counts per minute - Wikipedia

    en.wikipedia.org/wiki/Counts_per_minute

    Disintegrations per minute (dpm) and disintegrations per second (dps) are measures of the activity of the source of radioactivity. The SI unit of radioactivity, the becquerel (Bq), is equivalent to one disintegration per second. This unit should not be confused with cps, which is the number of counts received by an instrument from the source.

  6. Numeric keypad - Wikipedia

    en.wikipedia.org/wiki/Numeric_keypad

    A 104-key PC US English QWERTY keyboard layout with the numeric keypad at the far right.. Numeric keypads are also used for playing some oldercomputer games where the player must control a character, such as roguelikes and Sid Meier's Pirates!.

  7. The Space Bar - Wikipedia

    en.wikipedia.org/wiki/The_Space_Bar

    The Space Bar is a 1997 graphic adventure game developed by Boffo Games and published by Rocket Science Games and SegaSoft.A comic science fiction story, it follows detective Alias Node as he searches for a shapeshifting killer inside The Thirsty Tentacle, a fantastical bar on the planet Armpit VI.

  8. Photon counting - Wikipedia

    en.wikipedia.org/wiki/Photon_counting

    The photon flux per unit area is the photon irradiance if the photons are incident on a surface, or photon exitance if the emission of photons from a broad-area source is being considered. The flux per unit solid angle is the photon intensity. The flux per unit source area per unit solid angle is photon radiance. SI units for these quantities ...

  9. Cycle per second - Wikipedia

    en.wikipedia.org/wiki/Cycle_per_second

    The cycle per second is a once-common English name for the unit of frequency now known as the hertz (Hz). Cycles per second may be denoted by c.p.s., c/s, or, ambiguously, just "cycles" (Cyc., Cy., C, or c). The term comes from repetitive phenomena such as sound waves having a frequency measurable as a number of oscillations, or cycles, per ...