A226204 Decimal expansion of the length (in meters) of the seconds pendulum, a pendulum whose period is two seconds at standard gravity.

9, 9, 3, 6, 2, 2

Offset

0,1

Comments

This length is very close to 1 because g ~ 9.81 is very close to Pi^2 ~ 9.87. Its equivalent in inches is 39.1189.

Links

Table of n, a(n) for n=0..5.

P. Agnoli and G. D'Agostini, Why does the meter beat the second? arXiv:physics/0412078 [physics.hist-ph], 2004-2005.

Istituto Nazionale di Fisica Nucleare, The seconds pendulum.

Wikipedia, Seconds pendulum.

Formula

Equals g/Pi^2.

Example

0.993622

Mathematica

g/Pi^2 /. g -> 9.80665`6 // RealDigits // First

Crossrefs

Cf. A072915.

Sequence in context: A222810 A140416 A340628 * A296454 A387448 A179102

Adjacent sequences: A226201 A226202 A226203 * A226205 A226206 A226207

Keyword

nonn,cons,more

Author

Jean-François Alcover, May 31 2013

Status

approved