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  2. 1973 Kentucky Derby - Wikipedia

    en.wikipedia.org/wiki/1973_Kentucky_Derby

    The 1973 Kentucky Derby was the 99th running of the Kentucky Derby at Churchill Downs in Louisville, Kentucky. Secretariat won the Derby in a record time of 1:, lengths ahead of Sham, while Our Native finished in third position. Of the thirteen horses that entered and started the race, all horses completed the event.

  3. Post-mortem interval - Wikipedia

    en.wikipedia.org/wiki/Post-mortem_interval

    Post-mortem phenomena to estimate the time of death. The post-mortem interval ( PMI) is the time that has elapsed since an individual's death. [1] When the time of death is not known, the interval may be estimated, and so an approximate time of death established. Postmortem interval estimations can range from hours, to days or even years ...

  4. How Much Deep, Light, and REM Sleep Do You Need? - Healthline

    www.healthline.com/health/how-much-deep-sleep-do...

    Each cycle lasts around 90–110 minutes. ... An adult aged 18–60 years needs 7 or more hours of sleep in every 24 hours. Around 25% or 105 minutes of this is typically the deepest sleep. In ...

  5. Comparison of time-tracking software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_time...

    Project management software with a wide range of time tracking functionalities to record the start and end dates, calculate the time spent on tasks, differentiate billable and non-billable hours, generate invoices, and to establish and manage an approval process for timesheets.

  6. Use This 90-Minute Snooze Button Hack to Energize Your Morning

    www.healthline.com/.../90-minute-sleep-hack

    The theory, explains Chris Winter, MD, medical director of the Sleep Medicine Center at Martha Jefferson Hospital in Virginia, is that the 90 minutes of sleep you get between snoozes is the full ...

  7. Traditional Chinese timekeeping - Wikipedia

    en.wikipedia.org/wiki/Traditional_Chinese...

    The first gēng theoretically comes at sundown, but was standardized to fall at yǒu shí central 1 kè, or 19:12. The time between each gēng is 10 of a day, making a gēng 2.4 hours—or 2 hours 24 minutes—long. The 5 gēngs in the night are numbered from one to five: yì gēng ( 一 更) (alternately chū gēng ( 初更) for "initial watch ...

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