Definition:Planck's Constant/Value
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Planck's Constant: Value
\(\ds h\) | \(=\) | \(\ds 6 \cdotp 62607 \, 015 \times 10^{-34}\) | joule seconds | \(\quad\) This sequence is A003676 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008). | ||||||||||
\(\ds \) | \(=\) | \(\ds 6 \cdotp 62607 \, 015 \times 10^{-27}\) | erg seconds |
Sources
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.3$ Adjusted Values of Constants
- which gives the mantissa as $6 \cdotp 626 \, 196$ with an uncertainty of $\pm 50$ corresponding to the $2$ least significant figures
- 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $3.$ Physical Constants