Rainbow Fire

A circumhorizontal arc or rainbow fire is an atmospheric optical phenomenon shaped like a rainbow halo but differs in that it shorter, thicker and is a not caused by the refraction of light in water droplets but though ice crystals in cirrus clouds.

It occurs only when the sun is high in the sky at least 58° above the horizon and can only occur in the presence of cirrus clouds. Therefore it can not be observed at higher latitudes 55° except occasionally from mountains.

The phenomenon is quite rare bacause the ice crystals must be aligned horizontally to refract the high sun.

A circumhorizontal arc can be confused with a infralateral arc when the sun is high in the sky; the first is always oriented horizontally while the latter is intended as a section of a rainbow, such as arc stretching above the horizon.

What do you think about rainbows of fire?

I think it is a beautiful phenomenon and also it´s nice to see because of their colors.

SCIENTIFIC CURIOSITIES

1) The astronauts can not burp because weightlessness does not allow the separation of liquid and gas in their stomachs.

2) The palm talipot takes 100 years to bloom and then dies.

3) Without its layer of mucus, the stomach digest itself.

4) Lightning can reach up to 30 miles (48 km) long and its thickness is less than an inch (2.54 cm) and reach a higher temperature than the sun's surface.

5) An electric eel can produce a shock above 600 volts.

6) Light takes 8 minutes and 17 seconds to travel from the sun to the Earth's surface.

7) A human heart beats 100, 000 times a day, throughout his life a human blood pumped so as to fill 100 swimming pools.

what did yoou think this information?

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PIRATE SHIPS

Were as pirate ships?

Pirate ships were to be swift, well-armed and low keel to sail close to the shore when they attacked the coast. The tripulacione was more numerous than those of merchant ships often, so many of their ships could be crowded.

The pirates were engaged in stealing and the more the better. Their prey were usually heavy merchant ships, laden with all kinds of riches.

To be able to catch they used light boats, since they do not transport goods, unless the stolen loot.

And the speed was essential for them, much of his time was devoted to the preservation of the ship.

Not begin too large ships and not wanting to take too much weight, evoiding heavy guns. Most of their guns were light and used mainly to clear the cover of the ship assaulted.

Most common types of vessels:

1) BARQUE: Ship widely used by pirates and privateers, for its speed and medium size about 80 tonelas.

2) BALANDRA: Used by the filibusters by its speed.

3) PINNACE: Very fast especially to transport of pirates to the ship or area to attack.

4) MAN OF WAR: English construction equivalent to the spanish galleon, a large as 800 tons.

5) CANOE: In shallow draft it was used to shallow water

what do you think about the pirates?

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Marine Beauty

Clownfish: Also known as anemone fish, clown fish are beautiful fish that usually consist of a body of yellow/orange with white stripes, with black liner along its fins or back body with yellow/orange to over areas of the body it is less than the fins, although this depends on the species of clownfish and have many designs and colors.

Seahorse: It belongs to the family Syngnathidae, his body surrounded by numerous bone rings and prehensile tail; possession of a muzzle of medium legth and a small five-pointed crwon on the head are the distinguishing characteristics of the species. Their coloring white ivory to dark brown, ofthen sets or transverse, white or dark bands; of this kind of bright light adopts a lighter shades is exposed.

Betta fish: The betta or Siamese fighter is one of the most popular species among freshwater fish. The natural coloration of B. Splendens us a dull green and brown, and the fins of wild specimens are relatively short.

Emperor angelfish: This is a very famous and known fish for divers. They are dark blue with white rings and electric blue.

Royal caribbean fish grandmother: The royal carribbean grandmother is a fish most brilliant colors, even compared with other fish standards of arrecifes.

Surgeon fish: The fish blue tang, or paracanthurus with halftone coloring, might have probably developed them o from of camouflage.

These are some of the most colorful fish in the sea, but there are many more.

what do you think about this fishes?

Fun facts

1) A sneeze travels at 965 km/hr

2) Like fingerprints, each league is unique.

3) ants do not sleep.

4) The elephant is the only animal with 4 knees.

5) A person blinks 25 thousand times a week.

6) The mouth produces almost a liter of saliva a day.

7) Each year more tickets are printed Monopoly game that real bills worldwide.

8) The first year of a dog is equivalent to 21 human years, each subsequent year is 4 canine human years.

9) More than 1,000 birds die each year from crashing into windows.

10) It is impossible to sneeze with your eyes open.

11) Did you know that human saliva contains opiorphin, 6 times stronger than morphine analgesic?

they think about this data?

Deadly Creatures

Number 1) The taturana oblique is a species of Lepidoptera distrisio the Saturniidae family whose very poisonous caterpillars have stinging hairs. Upon contact with the caterpillar occur there may be pain, but after such a malasie that produces a food that fell ill, and pain in the ppsterios part of the head begins, at 8 hourbruising, bleeding and 76 tables, which if not treated on time in 34% of cases are fatal.

Number 2) The deadly cones nail geographer, geographer cone measures about 15 centimeters. Is the most poisonous 500 knoen species of such invertebrates. Their venom, a complex mixture of hundreds of different toxins is triggered by a jagged dart though its trunk extensible. No exist antidote for the bite of the cone snail geographer.

Number 3) Blue-ringed octopus, is a genus of cephalopods in the range of commonly knows as octopi octopus rings blue. A despite is small size, are commonly recognized as one of the most poisonous animals recognized by its rings in the world. No known antidote for the poison. The poison produced by these octopus contains tetrodotoxin, 5 hydroxytryptamine, hyaluronidase, tyramine, histamine, tryptamine, octopamine, taurine, acetylcholone and dopamine.

Number 4) The blue arrow frog is a frog Dendrobatidae family lives on southern Suriname, Sipaliwini in the savannah, the blue poison dart frog may have a differents of colors ranging from light blue to dark bluish-purple blotchy black of various sizes; is this color that warns predators of their toxicity and one of its salient features. Your skin glands secrete toxins used as a defense against potential attackers.

Number 5) Scorpions are an order of arachnids provided with a pair of appendages clip and finished in a tail stinger venom provided. Reach sizes between ninw milimeters and 21 centimeters.

Number 6) The mosquito, at present there are a total of 39 general and 135 sub-geners recognized whit mote than 3,200 known species of mosquitoes true. Are vectorsbof deadly diseases such as yellow fever, malaria and dengue.

agree with are the deadliest animals?
you know some others that deverian into the category ?