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What made this bright halo?

The halo around the sun appears when a thin cloud of ice crystals refract refract /re·fract/ (re-frakt´)
1. to cause to deviate.

2. to ascertain errors of ocular refraction.


re·fract
v.
1.
 incoming sunlight. The crystals which produced this halo were suspended about 9,100 to 12, 200 meters (30,000 tio 40,000 ft) in the atmosphere, and lasted for about two hours. According to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 folklore, a ring around the sun means rain is coming. In fact, high icy cirrus clouds that produce haloes often precede stormy storm·y  
adj. storm·i·er, storm·i·est
1. Subject to, characterized by, or affected by storms; tempestuous.

2.
 weather.

Tease tease (tez) to pull apart gently with fine needles to permit microscopic examination.

tease
v.
 Your Brain

Can you connect all the dots using only six straight lines? Here's the catch: You can't lift the pencil from the paper. (There's more than one answer.)

[ILLUSTRATION OMITTED]
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Title Annotation:"halo" around the sun
Publication:Science World
Article Type:Brief Article
Date:May 10, 1999
Words:110
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