http://www.sciencealert.com/physicists-say-they-ve-figured-out-how-spacecraft-could-make-it-through-a-wormhole
Friday, June 10, 2016
What happens when you shoot a bullet into the air?
Ever since I can remember, I've seen on TV or movies people shooting guns into the air.
I always wondered though, what happened to the bullet? Did they hit somebody when they came down? Do they escape the atmosphere? Does their size and velocity cause the pieces of metal to burn up as it came back down. At the very least did it hit land a few miles away?
Well here's what I discovered.
The bullet leaves the barrel with enough terminal velocity to kill somebody.
When shooting straight into the air it does too, but as it starts to come back to earth air resistance causes it to slow down enough to cause serious damage to people and property but unless it hit the face of a person, would under normal circumstances be non fatal.
Can a bullet leave the atmosphere? The maximum velocity of a bullet can be no more then slightly under 1,000 per second. Having to do with size and weight as air resistance of a projectile. To escape Earth's gravity the bullet would have to achieve a velocity of 40,270. That's not gonna happen.
But if it did, what would happen?
If it got far enough away from Earth's atmosphere and gravity pull it would either get pulled into the moons gravity or hit any of the thousands of floating pieces of man made objects floating above earth.
Update: Yes, I am aware Mythbusters did this. I didn't see it. My research is all from books and websites.
New structure found at Petra Jordan
http://news.nationalgeographic.com/2016/06/space-archaeology-satellite-petra-ancient-city-discovery-jordan-monument/?utm_source=Facebook&utm_medium=Social&utm_content=link_fb20160609news-petra&utm_campaign=Content&sf28261173=1
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