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2. Dive light - Wikipedia

   en.wikipedia.org/wiki/Dive_light

   A modern dive light usually has an output of at least about 100 lumens. Bright dive lights have values from about 2500 lumens. Halogen lamps provide this light at over 50W power consumption. High-intensity discharge lamps (HID) [6] and Light-emitting diodes (LED) can provide similar output for less power. [8]

3. Michigan Underwater Preserves - Wikipedia

   en.wikipedia.org/wiki/Michigan_Underwater_Preserves

   Michigan Underwater Preserves. Michigan Underwater Preserves or Michigan Bottomland Preserves are protected areas of the Great Lakes on Michigan's coast. The thirteen designated areas, comprising a surface area of over 7,000 square miles (18,000 km 2), are considered to be "Underwater museums" and serve to protect concentrations of shipwrecks, unique geologic features and other submerged sites ...

4. Torch Lake (Antrim County, Michigan) - Wikipedia

   en.wikipedia.org/wiki/Torch_Lake_(Antrim_County...

   Torch Lake is a lake in the Northern Lower Peninsula of the U.S. state of Michigan. At 19 miles (31 km) long, is Michigan's longest inland lake, and at approximately 29.3 mi 2 (76 km 2), it is Michigan's second largest inland lake, after Houghton Lake. It has a maximum depth of 310 feet (94 m) and an average depth of 111 feet (34 m), making it ...

5. Magnesium torch - Wikipedia

   en.wikipedia.org/wiki/Magnesium_torch

   A magnesium torch is a bright light source made from magnesium, which can burn underwater and in all weather conditions. They are used for emergency illumination for railroad applications. They were also used in the 1950s up to the early 1970s as a light source for scuba diving, and were featured occasionally in television shows. A relay of ...

6. Thunder Bay National Marine Sanctuary - Wikipedia

   en.wikipedia.org/wiki/Thunder_Bay_National...

   Thunder Bay National Marine Sanctuary and Underwater Preserve is a United States National Marine Sanctuary on Lake Huron's Thunder Bay, within the northeastern region of the U.S. state of Michigan. It protects an estimated 116 historically significant shipwrecks ranging from nineteenth-century wooden side-wheeler paddle steamers to twentieth ...

7. Colorful northern lights could return to Michigan skies ...

   www.aol.com/colorful-northern-lights-could...

   This article originally appeared on Detroit Free Press: Northern lights forecast for Michigan: Aurora borealis on August 12. Show comments. Advertisement. Advertisement. In Other News.