English : 24 hour time-lapse of the upper chamber of the Miraflores Locks, Panama Canal, Panama. Looking north to the Pedro Miguel Locks and Centennial Bridge.
A Common Winter Damselfly (Sympecma fusca) warming up on a branch on an early spring day. It is one of only two species of European dragonflies that overwinter as adult insects.
English : A Common Winter Damselfly (Sympecma fusca) warming up on a branch on an early spring day. It is one of only two species of European dragonflies that overwinter as adult insects.
Beginning with a full-frame Moon in this video, the camera flies to the lunar south pole and shows areas of permanent shadow. Realistic shadows evolve through several months.
English : Beginning with a full-frame Moon in this video, the camera flies to the lunar south pole and shows areas of permanent shadow. Realistic shadows evolve through several months.
Movie of de-etiolation of a pea plant that was cultivated in the dark during 12 days, and then exposed to a circadian cycle (16 hours of day and 8 hours of dark) for 51 hours (1 picture each minute and speed video at 20 frames per second), the film begin with 2 hours of darkness (the plants aren't exposed to light before).
English : Movie of de-etiolation of a pea plant that was cultivated in the dark during 12 days, and then exposed to a circadian cycle (16 hours of day and 8 hours of dark) for 51 hours (1 picture each minute and speed video at 20 frames per second), the film begin with 2 hours of darkness (the plants aren't exposed to light before).
Atomic Weapons come to Korea, News in Brief item, Universal International Newsreel, 6 February 1958. The first deployment, from January 1958, of atomic weapons by the Unites States in South Korea, on behalf of the United Nations Command, utilizing Honest John missiles and the 280mm Atomic Cannon.
English : Atomic Weapons come to Korea, News in Brief item, Universal International Newsreel, 6 February 1958. The first deployment, from January 1958, of atomic weapons by the Unites States in South Korea, on behalf of the United Nations Command, utilizing Honest John missiles and the 280mm Atomic Cannon.