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Histoire - Actualité & Débats
History News Network - Mozilla Firefox
Newton's third law of motion says that for every action there is an equal and opposite reaction. Firing a projectile from a cannon produces a powerful recoil force in the opposite direction, capable of propelling an object a considerable distance.... Friday, February 10, 2012 - 17:15 Verne's notion of launching men to the moon with a cannon seems implausible at best, but some of the underlying principles are quite sound, given how little was known at the time.
Le site du Comité de vigilance sur les usages publics de l'histoire est désormais hébergé à cette nouvelle adresse : http://cvuh.blogspot.com
Comité de vigilance face aux usages publics de l'histoire



