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martedì 15 febbraio 2011

Cyanoacrylate (Loctite Super glue - Attak)

Cyanoacrylates were invented in 1942 by Dr. Harry Coover and Fred Joyner of Kodak Laboratories during experiments to make a transparent plastic suitable for gun sights. Although not appropriate for the gun sights, they did find that cyanoacrylates would quickly glue together many materials with great strength. Seeing possibilities for a new adhesive, Kodak developed "Eastman #910" (later "Eastman 910") a few years later as the first true "super glue."

During the 1960s, Eastman Kodak sold cyanoacrylate to Loctite, which in turn repackaged and distributed it under a different brand name "Loctite Quick Set 404." In 1971, Loctite developed its own manufacturing technology and introduced its own line of cyanoacrylate, called Super Bonder. Loctite quickly gained market share and by late 1970s it was believed to have exceeded Eastman Kodak's share in the North American industrial cyanoacrylate market. Other manufacturers of cyanoacrylate included Permabond Division of National Starch and Chemical, Inc., which was a subsidiary of Unilever. Together, Loctite, Eastman and Permabond accounted for approximately 75% of the industrial cyanoacrylate market.

US Patent 2,768,109

martedì 25 gennaio 2011


"You are a Rock"

This Metaphor is used to describe a strong person

"Bury the head in the sand"

Said about a scared or a weak person

"To stop the delay"

An english metaphor for "break through the inertia"

"Let's go"

A classical expression used to do something

North Pole

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets the Earth's surface. It should not be confused with the North Magnetic Pole.

The North Pole is significantly warmer than the South Pole because it lies at sea level in the middle of an ocean (which acts as a reservoir of heat), rather than at altitude in a continental land mass.
Winter (January) temperatures at the North Pole can range from about −43 °C (−45 °F) to −26 °C (−15 °F), perhaps averaging around −34 °C (−29 °F). Summer temperatures (June, July and August) average around the freezing point (0 °C (32 °F)).

The sea ice at the North Pole is typically around 2 to 3 m (6 ft 7 in to 9 ft 10 in) thick, though there is considerable variation and occasionally the movement of floes exposes clear water. Studies have shown that the average ice thickness has decreased in recent years. Many attribute this decrease to global warming, though this conclusion is disputed by some. Reports have also predicted that within a few decades the Arctic Ocean will be entirely free of ice in the summer months. This may have significant commercial implications; see "Territorial Claims," below.

Temperature changes vary over the globe. Since 1979, land temperatures have increased about twice as fast as ocean temperatures (0.25 °C per decade against 0.13 °C per decade). Ocean temperatures increase more slowly than land temperatures because of the larger effective heat capacity of the oceans and because the ocean loses more heat by evaporation. The Northern Hemisphere warms faster than the Southern Hemisphere because it has more land and because it has extensive areas of seasonal snow and sea-ice cover subject to ice-albedo feedback. Although more greenhouse gases are emitted in the Northern than Southern Hemisphere this does not contribute to the difference in warming because the major greenhouse gases persist long enough to mix between hemispheres.


"No matter how hidden a force is, it will attract some kind of resistance."

Native american proverb

"Chaka la simba halilali nguruwe."
Idiomatic Translation: A pig doesn't sleep in the lion's thicket.Literal Meaning: The weak don't hang around in a powerful person's territory.

Swahili Proverb

"A perro flaco, todo son pulgas."
Translation: To a skinny dog, all are fleas.
Interpretations: When you are weak, it will seem that only problems surround you.

Spanish Proverb

"ماقدرش علي الحمار اتشطر علي البردعه "
Translation: He who couldn't overcome the donkey took on the saddle.
Meaning: Said of people who don’t face their match and pick on the weak instead.
Egyptian Proverb

"The chains of habit are too weak to be felt until they are too strong to be broken."
Pakistan Proverb

"A chain is no stronger than its weakest link."
Meaning: The strength of any group depends on the individual strength of each of its members.

English Proverb

"Zich met hand en tand verzetten."
Literal translation: To resist with hand and tooth.
Meaning: To resist with every possible means, not giving in in any way.

Dutch Proverb

"On ne resiste pas l'invasion des idées"
Literal Meaning: One doesn't resist the invasion of ideas

French Proverb

"猫に鰹節 neko ni katsuobushi"
Literally: fish to a cat.
Meaning: A situation where one can not let their guard down (because the cat can't resist stealing your fish).

Japanese Proverb

"No hay mal que dure cien años, ni cuerpo que lo resista"
Translation: There's no illness that lasts one hundred years, or body that can resist it.
Interpretation: A problem can't last forever, or else it's not a problem.