ali110: I dont think they can arrive in usa ,You have world's best security system and technology and your Govt is doing very well to keep them away from Borders
so true, by the time they get to the airport security system, stripped down to their skivies, they have missed their connecting flight...... better to wait and catch the next drone..... or face driving in traffic on some freeway or highway with it's cloverleaf flyovers and strategic placed traffic signs.....
lifeisadreamMexi Go, Mexico State Mexico16,713 posts
Conrad73: Something like Polar Bears?
Please ignore half of my comment above Conrad
1. Polar bears have see-through fur.
Ask any child what color a polar bear is and s/he will exclaim, “white” with great enthusiasm, but truth be told, their fur is actually transparent and holds no color. It only appears white because it reflects visible light. They’re nearly invisible under infrared photography. Polar bear skin, surprisingly however, is black!
lifeisadream: Please ignore half of my comment above Conrad
1. Polar bears have see-through fur.
Ask any child what color a polar bear is and s/he will exclaim, “white” with great enthusiasm, but truth be told, their fur is actually transparent and holds no color. It only appears white because it reflects visible light. They’re nearly invisible under infrared photography. Polar bear skin, surprisingly however, is black! Read more:
lifeisadream: Please ignore half of my comment above Conrad
1. Polar bears have see-through fur...
I did not know that, Thanks!
lifeisadream: Please ignore half of my comment above Conrad
1. Polar bears have see-through fur... their fur is actually transparent and holds no color. It only appears white because it reflects visible light.
When something reflects visible light it's called "white".
It has no "color", that's true. Black doesn't have any color either.
In additive color (light) white is the combination of all colors and black is the absence of any color whatsoever.
But in subtractive color (paint, ink, dye, or anything we see that isn't a light source) "white" describes something that reflects the entire spectrum of light without absorbing any of it.
That doesn't make it invisible or transparent. It makes it white. It's not "see-through" unless you can see through it.
Don't worry, Big Brother will save us. All we have to do is give him all our money, suspend our own rational minds, and obey whatever he says without question.
sorry but i;m from iraq and thay are here Ali said the true thay can not get to there USA or other country thay work just here because we have bad government if we have good one thay can not stay any more in iraq its not like USA or UK very to get in and out if you have money we die every day we not sleeping in our homes i work in jails thay kill every one now who work in this job or other and thay all from around the world we wish thay will die by tomorrow god save every good guy and brun all ISIS thay even killed my father he was taxis driver i dont like them or any one hurt other
Don't worry, Big Brother will save us. All we have to do is give him all our money, suspend our own rational minds, and obey whatever he says without question.
I sure hope big brother here doesn't mean the USA. The USA is a benevolent super power and Europe should spend its own money on defending itself and sacrifice it's own youth, not ours.
Most of Europe has developed a false sense of security created (imo) by our strong military presence in the world and they don't even realize it; instead they berate us. I hope president Obama keeps on keeping us out of foreign conflicts.
We should no longer sacrifice our young women and men who are are mutilated and killed policing an ungrateful world.
raphael119: Polar bears color based on additive properties. Many examples of blue in nature are additive. For instance the bluebird.
Painting can incorporate techniques with additive properties. DaVinci is credited by some with discovering this.
I was embarrased by my first grade teacher when I claimed a Panda was a bear. Now it is my understanding ? they believe a panda is a type of bear.
Technically, from a distance, a Panda is a cuddly oversized Koala. But if it's chasing you through the bamboo it's a bear.
I'm interested to know what you mean about paintings and birds with additive qualities. Are you saying that reflected light becomes a sort of light source, so that the observed color derives from additive rather than subtractive processes? I could believe this for birds with highly reflective florescent colors such as some pigeons, peacocks, etc. In effect florescence is indeed a light source, converting absorbed ultraviolet into visible light.
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Arab scientists have invented a time-travel device that can transport an entire country back to the middle ages.
They’re calling it ‘Islam’.
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