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Halo (from Greek ἅλως, halōs[1]) is the name for a family of optical phenomena produced by light (typically from the Sun or Moon) interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from colored or white rings to arcs and spots in the sky. Many of these appear near the Sun or Moon, but others occur elsewhere or even in the opposite part of the sky. Among the best known halo types are the circular halo (properly called the 22° halo), light pillars, and sun dogs, but many others occur; some are fairly common while others are (extremely) rare.
The ice crystals responsible for halos are typically suspended in cirrus or cirrostratus clouds in the upper troposphere (5–10 km (3.1–6.2 mi)), but in cold weather they can also float near the ground, in which case they are referred to as diamond dust. The particular shape and orientation of the crystals are responsible for the type of halo observed. Light is reflected and refracted by the ice crystals and may split into colors because of dispersion. The crystals behave like prisms and mirrors, refracting and reflecting light between their faces, sending shafts of light in particular directions.
Atmospheric optical phenomena like halos were used as part of weather lore, which was an empirical means of weather forecasting before meteorology was developed. They often do indicate that rain will fall within the next 24 hours, since the cirrostratus clouds that cause them can signify an approaching frontal system.
Other common types of optical phenomena involving water droplets rather than ice crystals include the glory and rainbow.
https://en.wikipedia.org/wiki/Halo_(optical_phenomenon) |
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Author |
Post time 10-4-2020 01:30 PM
From the mobile phone
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sarah82 replied at 10-4-2020 01:15 PM
Cantikkan.. Biru saja.. Udara pun segar..
Sangat segar sebab masih dikelilingi pokok walaupun lebih kepada pokok sawit.
Panjang umur datanglah sini sarah. |
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PristineOne replied at 10-4-2020 01:27 PM
Takkk..... Chazey duk kat Beluran....belah dalam sikit...tapi wifi ada. Dia orang sungei + rungus ...
Jangan memandai.  |
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cantikkk.... sape yang melamar matahari? |
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TravellingBear replied at 10-4-2020 01:15 PM
Ada nama dia. something “ring” tapi lupa lah hahaaa
Halo ring? |
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Cantiknya..i nak check jap |
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PristineOne replied at 10-4-2020 01:27 PM
Takkk..... Chazey duk kat Beluran....belah dalam sikit...tapi wifi ada. Dia orang sungei + rungus ...
Laa ingatkan kat Kinabalu tuh..sbb ada satu thread tu discus pasal kaka chazey..yg pasal exboifren/ex cintahati dia yg ada bisnes sayur berekar ekar tanah tuh meroyan sbb mak Kaka chazey tak restu..haha |
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TravellingBear replied at 10-4-2020 01:15 PM
Ada nama dia. something “ring” tapi lupa lah hahaaa
Super ring kan??? |
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Author |
Post time 10-4-2020 01:32 PM
From the mobile phone
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ultra78 replied at 10-4-2020 01:15 PM
Tunggu @dua_chzy post gambar awan pulak
Ada kelainan ke? Kita tunggu. |
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PristineOne replied at 10-4-2020 01:27 PM
Takkk..... Chazey duk kat Beluran....belah dalam sikit...tapi wifi ada. Dia orang sungei + rungus ...
Mix tu patut la hot |
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orgsepang replied at 10-4-2020 01:30 PM
Sangat segar sebab masih dikelilingi pokok walaupun lebih kepada pokok sawit.
Panjang umur datang ...
Hahaha.. Kalau dpt job sana.. Sy pi.. |
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Author |
Post time 10-4-2020 01:33 PM
From the mobile phone
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mbhcsf replied at 10-4-2020 01:30 PM
Halo (from Greek λω, halōs[1]) is the name for a family of optical phenomena produce ...
Wah, cepatnya dapat. |
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Author |
Post time 10-4-2020 01:37 PM
From the mobile phone
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AbukRokok replied at 10-4-2020 01:28 PM
giliran saya punya gambar
no halo halo... everyone inside home
Macam biasa kulihat gambar ini. |
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Author |
Post time 10-4-2020 01:40 PM
From the mobile phone
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wirazam replied at 10-4-2020 01:31 PM
Laa ingatkan kat Kinabalu tuh..sbb ada satu thread tu discus pasal kaka chazey..yg pasal exboifren ...
Serius? Chazey ke gadis tersebut? Wahhhh. |
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Khas utk kaka orgsepang. Langit kat jitra tarikh 10/4/2020 1.41 pm
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AbukRokok replied at 10-4-2020 01:25 PM
ko dah kne kenan kak gemuk supering
tu nama dia halo halo... anybody home?
Oh aku salah! Cissss . Menang pon tkde adiah kan. Never mind... kalau adiah super ring time kasih aje laa. Gemokk nanti |
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sarah82 replied at 10-4-2020 01:42 PM
Khas utk kaka orgsepang. Langit kat jitra tarikh 10/4/2020 1.41 pm
Betul ka kat kedah ada area kena hujan es? Aka hujan batu. |
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CatMiow replied at 10-4-2020 01:57 PM
Betul ka kat kedah ada area kena hujan es? Aka hujan batu.
Petang dan mlm hujan.. Tapi x ada la hujan batu.. Cuma angin dan guruh + kilat kuat. |
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Malam pun udara nyaman dan langit bersih jer... Inilah hikmah covid19... Tentera Allah yg tersembunyi |
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sarah82 replied at 10-4-2020 01:58 PM
Petang dan mlm hujan.. Tapi x ada la hujan batu.. Cuma angin dan guruh + kilat kuat.
Ada yg forward kat wasap, hujan ais, background mcm orng cakap kedah pun ada, cakap thai pun ada...
Rasanya mcm tahun2 lepas punya cerita, tapi tengok kat youtube, ada yg up video 2 hari lalau, dua tiga juga videonya, kata hujan batu kat kedah, tak ingat area mana. |
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Post time 10-4-2020 01:30 PM
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