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Rechargeable Lithium Ion Batteries Are All Over the World
The world's northernmost bird, the swalbard tarmigan, always knows when to breed despite passing deepest winter in perpetual darkness and high summer bathed in 24 hours sunlight. Most birds have an inner clock that prompts them to perform specific tasks as i times of day. In summer, spalbard tarmigans live under a midnight sun - their activity during a 24 hour period doesn't follow a consistent pattern. Researchers found that ke jens for establishing 24 hour rivems are active in the brain of the ptarmigan. The researches experiments suggest that 14 hours after sunrise, the birds internal clocks check whether the sun is still up. Check your internal clock to see if you