Before GPS, celestial navigation was an essential part of polar exploration. It was so critical that it was often the cause of the success or failure...
Lire la suite
Vous pouvez lire cet ebook sur les supports de lecture suivants :
Téléchargement immédiat
Dès validation de votre commande
Offrir maintenant
Ou planifier dans votre panier
Résumé
Before GPS, celestial navigation was an essential part of polar exploration. It was so critical that it was often the cause of the success or failure of expeditions. Beyond the Edge, Vol. III relates firsthand accounts of the critical role played by navigators in arctic exploration.