9 192 facts

While investigating facts about 9 192, I found out little known, but curios details like:

In 1951 Thelma Howard was hired as a maid for Walt & Lillian Disney. Walt would gift her shares of Disney stock every X-mas for the next 30 yrs. She died in 1994 that's when it was discovered she still had all 192,000 shares valued at $9,000,000. It went to disadvantaged kids & her disabled son

The length of a second is "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom."

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 14 of the best facts about 9 192 I managed to collect.

1. The official definition of a second is 9,192,631,770 cycles of the Cesium atoms resonant frequency, and the NIST-F1 cesium atomic clock can produce a frequency so precise that its time error per day is about 0.03 nanoseconds, meaning the clock would lose one second in 100 million years

2. A second is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom. An atomic clock can measure this, making them the most accurate clocks in the world.

3. A second is exactly 9,192,631,770 periods of a certain frequency of radiation from the caesium atom

4. A second is strictly defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.

5. The definition of a second is "9,192,631,770 cycles of radiation corresponding to the transition between two energy levels of the caesium-133 atom."

6. One second is measured as exactly the duration of time it takes for 9,192,631,770 oscillations to occur between the nucleus and the outermost electron in the Cesium 133 atom, and that this forms the basis on how we measure all time.

7. One second is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

8. A second is calculated by counting 9,192,631,770 oscillations of a cesium atom.

9. The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyper-fine levels of the ground state of the cesium-133 atom.

10. The second is currently defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

What is true about 9 192?

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The SI definition of a second is " the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom"

1 second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom - source