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A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways.
The Lampyridae are a family of elateroid beetles with more than 2,000 described species, many of which are light-emitting. They are soft-bodied beetles commonly called fireflies, lightning bugs, or glowworms for their conspicuous production of light, mainly during twilight, to attract mates. Light production in the Lampyridae is thought to have originated as a warning signal that the larvae were distasteful. This ability to create light was then co-opted as a mating signal and, in a further development, adult female fireflies of the genus Photuris mimic the flash pattern of the Photinus beetle in order to trap their males as prey.
In folklore, a will-o'-the-wisp, will-o'-wisp, or ignis fatuus, is an atmospheric ghost light seen by travellers at night, especially over bogs, swamps or marshes. The phenomenon is known in much of European folklore by a variety of names, including jack-o'-lantern, friar's lantern, and hinkypunk, and is said to mislead travellers by resembling a flickering lamp or lantern. In literature, will-o'-the-wisp metaphorically refers to a hope or goal that leads one on, but is impossible to reach, or something one finds strange or sinister. Wills-o'-the-wisp appear in folk tales and traditional legends of numerous countries and cultures; notable named examples include St. Louis Light in Saskatchewan, the Spooklight in Southwestern Missouri and Northeastern Oklahoma, the Naga fireballs on the Mekong in Thailand, the Paulding Light in Upper Peninsula of Michigan, and the Hessdalen light in Norway.
Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, and terrestrial arthropods such as fireflies. In some animals, the light is bacteriogenic, produced by symbiotic bacteria such as those from the genus Vibrio; in others, it is autogenic, produced by the animals themselves.
In Polynesian mythology, Hawaiki is the original home of the Polynesians, before dispersal across Polynesia. It also features as the underworld in many Māori stories.
The Santa Cruz Islands form an archipelago in Temotu Province, Solomon Islands. They lie approximately 250 miles to the southeast of the Solomon Islands archipelago, just north of the archipelago of Vanuatu and are considered part of the Vanuatu rain forests ecoregion. The term Santa Cruz Islands is sometimes used to encompass all the islands of Temotu Province, Solomon Islands.
Hawaiʻiloa is a mythical Hawaiian fisherman and navigator who is said to have discovered the island of Hawaiʻi.
Glowworm or glow-worm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence. They include the European common glow-worm and other members of the Lampyridae, but bioluminescence also occurs in the families Elateridae, Phengodidae and Rhagophthalmidae among beetles; as well as members of the genera Arachnocampa, Keroplatus and Orfelia among keroplatid fungus gnats.
The Duff Islands are a small island group lying to the northeast of the Santa Cruz Islands in province of Temotu Province, in the nation of Solomon Islands. They are also sometimes known as the Wilson Islands.
Taumako is the largest of the Duff Islands, in the nation of Solomon Islands in the Pacific Ocean. This 5.7-kilometre-long (3.5-mile) island has steep sides and rises to a height of 400 metres above sea level. It is composed of basaltic lavas and pyroclastics like the other islands in the Duffs.
Pius "Mau" Piailug was a Micronesian navigator from the Carolinian island of Satawal, best known as a teacher of traditional, non-instrument wayfinding methods for open-ocean voyaging. Mau's Carolinian navigation system, which relies on navigational clues using the Sun and stars, winds and clouds, seas and swells, and birds and fish, was acquired through rote learning passed down through teachings in the oral tradition. He earned the title of master navigator (palu) by the age of eighteen, around the time the first American missionaries arrived in Satawal. As he neared middle age, Mau grew concerned that the practice of navigation in Satawal would disappear as his people became acculturated to Western values. In the hope that the navigational tradition would be preserved for future generations, Mau shared his knowledge with the Polynesian Voyaging Society (PVS). With Mau's help, PVS used experimental archaeology to recreate and test lost Hawaiian navigational techniques on the Hōkūleʻa, a modern reconstruction of a double-hulled Hawaiian voyaging canoe.
An earthquake light also known as earthquake lightning or earthquake flash is a luminous optical phenomenon that appears in the sky at or near areas of tectonic stress, seismic activity, or volcanic eruptions. There is no broad consensus as to the causes of the phenomenon involved. The phenomenon differs from disruptions to electrical grids – such as arcing power lines – which can produce bright flashes as a result of ground shaking or hazardous weather conditions.
David Henry Lewis was a sailor, adventurer, doctor, and scholar of Polynesian culture. He is best known for his studies on the traditional systems of navigation used by the Pacific Islanders. His studies, published in the book We, the Navigators, made these navigational methods known to a wide audience and helped to inspire a revival of traditional voyaging methods in the South Pacific.
Polynesian navigation or Polynesian wayfinding was used for thousands of years to enable long voyages across thousands of kilometres of the open Pacific Ocean. Polynesians made contact with nearly every island within the vast Polynesian Triangle, using outrigger canoes or double-hulled canoes. The double-hulled canoes were two large hulls, equal in length, and lashed side by side. The space between the paralleled canoes allowed for storage of food, hunting materials, and nets when embarking on long voyages. Polynesian navigators used wayfinding techniques such as the navigation by the stars, and observations of birds, ocean swells, and wind patterns, and relied on a large body of knowledge from oral tradition. This island hopping was a solution to the scarcity of useful resources, such as food, wood, water, and available land, on the small islands in the Pacific Ocean. When an island’s required resources for human survival began to run low, the island's inhabitants used their maritime navigation skills and set sail for new islands. However, as an increasing number of islands in the South Pacific became occupied, and citizenship and national borders became of international importance, this was no longer possible. People thus became trapped on islands with the inability to support them.
Polynesia is a subregion of Oceania, made up of more than 1,000 islands scattered over the central and southern Pacific Ocean. The indigenous people who inhabit the islands of Polynesia are called Polynesians. They have many things in common, including language relatedness, cultural practices, and traditional beliefs. In centuries past, they had a strong shared tradition of sailing and using stars to navigate at night.
Optical phenomena are any observable events that result from the interaction of light and matter.
Wa are traditional sailing outrigger canoes of the Caroline Islands, which also includes Palau and Yap. They have a single outrigger. They are similar to the sakman of the Northern Marianas.
We, the Navigators, The Ancient Art of Landfinding in the Pacific is a 1972 book by the British-born New Zealand doctor David Lewis, which explains the principles of Micronesian and Polynesian navigation through his experience of placing his boat under control of several traditional navigators on long ocean voyages.
Crown flash is a rarely observed meteorological phenomenon caused by the effect of atmospheric electrical fluctuations on the alignment of ice crystals. It has been described as "the brightening of a thunderhead crown followed by the appearance of aurora-like streamers emanating into the clear atmosphere". The current hypothesis for why the phenomenon occurs is that sunlight is reflecting off, or refracting through, tiny ice crystals above the crown of a cumulonimbus cloud. These ice crystals are aligned by the strong electric field effects around the cloud, so the effect may appear as a tall streamer, pillar of light, or resemble a massive flash of a searchlight/flashlight beam. When the electric field is disturbed by electrical charging or discharging within the cloud, the ice crystals are re-oriented causing the light pattern to shift in a characteristic manner, at times very rapidly and appearing to 'dance' in a strikingly mechanical fashion. The effect may also sometimes be known as a "leaping sundog" or "jumping sundog". As with sundogs, observation of the effect is dependent upon the observer's position – it is not a self-generated light such as seen in a lightning strike or aurora, but rather a changing reflection or refraction of the sunlight. Unlike sundogs, however, these features move and realign within seconds, forming beams and loops of light, and the crown flash effect appears localised directly above the cloud rather than at some distance to the side(s) of the sun.
Micronesian navigation techniques are those navigation skills used for thousands of years by the navigators who voyaged between the thousands of small islands in the western Pacific Ocean in the subregion of Oceania, that is commonly known as Micronesia. These voyagers used wayfinding techniques such as the navigation by the stars, and observations of birds, ocean swells, and wind patterns, and relied on a large body of knowledge from oral tradition. These navigation techniques continued to be held by Polynesian navigators and navigators from the Santa Cruz Islands. The re-creations of Polynesian voyaging in the late 20th century used traditional stellar navigational methods that had remained in everyday use in the Caroline Islands.
References
- 1 2 3 Feinberg, Richard (2011). "In Search of Te Lapa: A Navigational Enigma in Vaeakau-Taumako, Southeastern Solomon Islands" (PDF). The Journal of the Polynesian Society . 120 (1): 57–70. JSTOR 23041479.
- 1 2 Lewis, Glenda (23 December 2019). "Te Lapa: Mysterious island lights that help Polynesians navigate". Stuff . Retrieved 23 October 2022.
- ↑ Reuell, Peter (21 December 2011). "A possible aid for navigators". The Harvard Gazette . Retrieved 23 October 2022.
- ↑ McDonald, Kyle (21 January 2021). "Art + Tech Lab Project Update – Searching for Te Lapa". Los Angeles County Museum of Art . Retrieved 23 October 2022.
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 George, Marianne (July 2012). "Polynesian Navigation and Te Lapa-"The Flashing"". Time and Mind: The Journal of Archaeology, Consciousness and Culture . 5 (2): 135–174. doi:10.2752/175169712X13294910382900. S2CID 162383914.
- ↑ Martins, Kim (7 August 2020). "Polynesian Navigation & Settlement of the Pacific". World History Encyclopedia . Retrieved 23 October 2012.
- 1 2 3 4 5 Lewis, David (1972). We, the Navigators . HI: University of Hawaii Press. ISBN 9780824802295.