"When helicopters operate in sandy environments, the downward thrust of their rotors kicks up clouds of sand. As the blades cut through, the hard sand erodes the abrasion-resistant titanium or nickel coatings, releasing fine metal particles. These fragments ignite due to heat and their pyrophoric nature, producing the fiery Kopp-Etchells Effect. The Kopp-Etchells Effect was named in honor of two soldiers, Benjamin S. Kopp (U.S. Army) and Joseph Etchells (U.K. Army), who died in Afghanistan in July 2009. The term was coined by Michael Yon, a former Green Beret and independent combat journalist - Michael Yon/X"
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Hal 9 month s ago
#21 The armpits are also where pheromones come from.
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Eudora 9 month s ago
#25 This is stupid. This is like americans with the stupid imperial units. Is stupid but is ours.
Is like lgtv+ I have nothing to prove, nothing in my head, nobody cares what I do in my bedroom, but I have blue and green hair.
This is Nepal. I have nothing but a big mountain with a few monks on it, but I don't put myself in line with the world. I am independent and I keep 15 minutes for a masturbation.
Is like lgtv+ I have nothing to prove, nothing in my head, nobody cares what I do in my bedroom, but I have blue and green hair.
This is Nepal. I have nothing but a big mountain with a few monks on it, but I don't put myself in line with the world. I am independent and I keep 15 minutes for a masturbation.
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Jan 9 month s ago
Eudora,
Yeah, well the French and English engineers building the channel tunnel did not think our antiquated system of measurement was stupid....after they figured out the two side were not going to meet and called us to fix it.
Bash my country if you want,, it just makes you petty and small.
Yeah, well the French and English engineers building the channel tunnel did not think our antiquated system of measurement was stupid....after they figured out the two side were not going to meet and called us to fix it.
Bash my country if you want,, it just makes you petty and small.
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Drew 9 month s ago
Eudora,
Thanks for the into into your stupidity just because YOU refuse to understand something doesn't mean you can belittle it.
Thanks for the into into your stupidity just because YOU refuse to understand something doesn't mean you can belittle it.
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Drew 9 month s ago
#12 Also, they are taught to bend their knees a little and never lock them in place, because it causes fainting. (Most common reason people faint at weddings or other long ceremonies)
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Drew 9 month s ago
#13 Ooo mysterious... not really. Dotn need to be a scientist to notice the wind blows branches, and trees that rub branches against each other at the same age and height can break off the soft ends and reduce growth on those branches, which can create this phenomenon.
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Drew 9 month s ago
#22 So are blue lights keeping us awake or making us relaxed? Depends if they want to blame your screens for keeping you awake, or calm you down when stressed... depends on the optics.
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Drew 9 month s ago
#37 This is what math truly is! A way to describe the world, using a constant that bypasses language or even species. Purer and more real than most sciences at explaining reality.
Is like lgtv+ I have nothing to prove, nothing in my head, nobody cares what I do in my bedroom, but I have blue and green hair.
This is Nepal. I have nothing but a big mountain with a few monks on it, but I don't put myself in line with the world. I am independent and I keep 15 minutes for a masturbation.
Yeah, well the French and English engineers building the channel tunnel did not think our antiquated system of measurement was stupid....after they figured out the two side were not going to meet and called us to fix it.
Bash my country if you want,, it just makes you petty and small.
Thanks for the into into your stupidity just because YOU refuse to understand something doesn't mean you can belittle it.