Blue light is produced naturally by the sun and generated by computer monitors, smartphone screens and other digital devices. Although the light has some beneficial effects, exposure can increase ...View Article
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Posted on 07-14-2016
By National Geographic Explorer. May 2014.
For centuries the seminomadic Moken people have lived as hunter-gatherers, dwelling on boats or stilted dwellings along the coasts of Myanmar (Burma) and Thailand. They harvest the sea's bounty by traditional methods. Without masks or scuba gear, they are able to gather tiny shellfish and other food on the ocean floor at depths as low as 75 feet (23 meters).
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