Definition:Speed of Light/Mistake
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Source Work
1986: David Wells: Curious and Interesting Numbers:
- The Dictionary
- $2^{86243} - 1$
Mistake
- ... for example, the speed of light, $299796$ kilometres per second, is written as $10^8 \times 2.99796$ kilometres per second.
Correction
The correct number is $299 \, 792 \, 458 \text { m s}^{-1}$, which, approximated to the nearest whole number of kilometres per second, works out as $299 \, 792$.
The paragraph on $2^{86243}$ has been edited down in Curious and Interesting Numbers, 2nd ed. of $1997$, and the commentary on how numbers are stored in computers, including this attempt at explaining the nature of scientific notation, has been removed.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $2^{86243} - 1$