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David Noble
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Wow!
 
You can see the soft metal of the bullet becoming nearly liquid compare to the hardness of this steel (AR500)


What exactly happens when the bullet hits the plate depends on many factors. In this case, the steel was so hard/the bullet so soft that the impact took the bullet apart right away. But at times they can also enter through the surface, yet not fully penetrate. In that case it of course depends on the power and stability of the projectile compared to the thickness and quality of the steel.
What happens also heavily depends on the kind of ammunition used. The round takes a massive shock upon touching a target. To put it in a simple way, the shock runs through the round and if there are any flaws in the round, it will shatter. This is why many armour-piercing tank rounds have soft heads which will instantly melt and dampen the shock, before the hardened core of the ammo will start penetrating. A shell like fired by a tank will melt the armour on impact and "swim" through it, resulting in a massive and quite deadly storm of molten metal on the other side. Unless the plate is weak, then it will just shatter.
Angle plays a role in the way that shots could ricochet of a very angled plate, and also that the effective thickness the bullet needs to penetrate is longer if it doesn't hit straight.

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Speechless at the brilliance of ths
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Stop staring at your phone while walking.

People who carelessly walk and text are just silly. A woman fell into a fountain over a year ago texting: Woman Falls in Mall Fountain While Texting And a woman recently fell down the stairs while texting: http://youtu.be/g3jOlQqDPzQ

It's a shame signs like this below have to be erected.

What do you think of people who walk and text?

Hat tip to +Nikki S for sharing this picture.
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I hate Transformers
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Have him in circles
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It's not going to happen, and I don't think i want him at McLaren
• Paddock gossip over grumpy Alonso growing apace • 'It would be quite exciting' – Button on driving with Alonso
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And the winner of world's smallest movie goes to...
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This new google+ layout is terrible. There's so much wasted space to the right. They have really cocked this up
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Morning Glory Clouds Over Australia

What causes these long, strange clouds? No one is sure. A rare type of cloud known as a Morning Glory cloud can stretch 1,000 kilometers long and occur at altitudes up to two kilometers high. Although similar roll clouds have been seen at specific places across the world, the ones over Burketown, Queensland Australia occur predictably every spring. Long, horizontal, circulating tubes of air might form when flowing, moist, cooling air encounters an inversion layer, an atmospheric layer where air temperature atypically increases with height. These tubes and surrounding air could cause dangerous turbulence for airplanes when clear. Morning Glory clouds can reportedly achieve an airspeed of 60 kilometers per hour over a surface with little discernible wind. On this picture, photographer Mick Petroff photographed some Morning Glory clouds from his airplane near the Gulf of Carpentaria, Australia.

Image Credit & Copyright: Mick Petroff
Explanation of the image from: http://apod.nasa.gov/apod/ap090824.html
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Have him in circles
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It's me. I mean, if you know who I am, you don't need to read this, and if you don't, then you don't need to read this. 

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David Noble's +1's are the things they like, agree with, or want to recommend.
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