Rensselaer Semi-Weekly Republican, Volume 21, Number 45, Rensselaer, Jasper County, 6 March 1900 — Journeys Around the Earth. [ARTICLE]

Journeys Around the Earth.

’Fhfr time required for a journey around the earth by a man walking day and* night. Avithout resting, would be 428 days; an express train, forty days; sound, at a medium temperature, thir-ty-two and one-half hours; a cannon ball, twenty-one and • three-fourths hours; light, a little over one-tenth of a setpnd, and electricity passing over a copper wire, a little under bne-tenth of a second.