CraigV Audioholic General Jan 2, 2009 1,271 0 83 May 21, 2009 #1 Some fun little facts to give you something to think about: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today There are more atoms in a glass of water than there are glasses of in all the seas and oceans of the world If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time. Reactions: 10010011
Some fun little facts to give you something to think about: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today There are more atoms in a glass of water than there are glasses of in all the seas and oceans of the world If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time.
lsiberian Audioholic Overlord Nov 17, 2008 12,393 0 113 On A Bridge in Fort Worth May 21, 2009 #2 CraigV said: Some fun little facts to give you something to think about: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today There are more atoms in a glass of water than there are glasses of in all the seas and oceans of the world If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time. Click to expand... What if you fire the bullet at an upward angle? The is only 1 Adam that I know of.
CraigV said: Some fun little facts to give you something to think about: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today There are more atoms in a glass of water than there are glasses of in all the seas and oceans of the world If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time. Click to expand... What if you fire the bullet at an upward angle? The is only 1 Adam that I know of.
Adam Audioholic Jedi Jul 5, 2006 32,066 0 113 Tucson, Arizona May 21, 2009 #3 CraigV said: If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time. Click to expand... That would depend on if you hit who you were shooting at. But, yes, the gravitational acceleration would be the same on both bullets.
CraigV said: If you fire a bullet from a gun and drop a bullet of the same weight at the same time, both bullets will hit the ground at the same time. Click to expand... That would depend on if you hit who you were shooting at. But, yes, the gravitational acceleration would be the same on both bullets.
lsiberian Audioholic Overlord Nov 17, 2008 12,393 0 113 On A Bridge in Fort Worth May 21, 2009 #4 Adam said: That would depend on if you hit who you were shooting at. But, yes, the gravitational acceleration would be the same on both bullets. Click to expand... hehe That works too. What if you designed a bullet with a lower terminal velocity and fired it from a height? I love pointing out exceptions.
Adam said: That would depend on if you hit who you were shooting at. But, yes, the gravitational acceleration would be the same on both bullets. Click to expand... hehe That works too. What if you designed a bullet with a lower terminal velocity and fired it from a height? I love pointing out exceptions.
Davemcc Audioholic Spartan Jan 10, 2007 6,561 0 0 The Satellite of Love May 21, 2009 #5 lsiberian said: hehe That works too. What if you designed a bullet with a lower terminal velocity and fired it from a height? I love pointing out exceptions. Click to expand... The forward velocity is irrelevant to the force of gravity. A slower bullet will hit the ground at the same time as time as the faster bullet or the dropped bullet, as long as they are fired level and fired/dropped from the same height. This is just the same as a hammer and a feather will fall at the same speed on the moon, in the absence of an atmosphere. Reactions: Rickster71
lsiberian said: hehe That works too. What if you designed a bullet with a lower terminal velocity and fired it from a height? I love pointing out exceptions. Click to expand... The forward velocity is irrelevant to the force of gravity. A slower bullet will hit the ground at the same time as time as the faster bullet or the dropped bullet, as long as they are fired level and fired/dropped from the same height. This is just the same as a hammer and a feather will fall at the same speed on the moon, in the absence of an atmosphere.
Davemcc Audioholic Spartan Jan 10, 2007 6,561 0 0 The Satellite of Love May 21, 2009 #6 CraigV said: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today Click to expand... This is incorrect. Sub-Saharan warming was due to Egyptian civilization cooking with open fires and polluting the environment. This is true because I just said it is true, in accordance with current scientific thresholds of proof in climate change studies.
CraigV said: A shift of less than 1 degree in the tilt of the Earth changed Northern Africa from a vast grassland to the desert we know today Click to expand... This is incorrect. Sub-Saharan warming was due to Egyptian civilization cooking with open fires and polluting the environment. This is true because I just said it is true, in accordance with current scientific thresholds of proof in climate change studies.
Adam Audioholic Jedi Jul 5, 2006 32,066 0 113 Tucson, Arizona May 21, 2009 #7 Davemcc said: The forward velocity is irrelevant to the force of gravity. A slower bullet will hit the ground at the same time as time as the faster bullet or the dropped bullet, as long as they are fired level and fired/dropped from the same height. This is just the same as a hammer and a feather will fall at the same speed on the moon, in the absence of an atmosphere. Click to expand... Isiberian said it correctly though - a lower terminal velocity, which implies a higher amount of drag.
Davemcc said: The forward velocity is irrelevant to the force of gravity. A slower bullet will hit the ground at the same time as time as the faster bullet or the dropped bullet, as long as they are fired level and fired/dropped from the same height. This is just the same as a hammer and a feather will fall at the same speed on the moon, in the absence of an atmosphere. Click to expand... Isiberian said it correctly though - a lower terminal velocity, which implies a higher amount of drag.
Adam Audioholic Jedi Jul 5, 2006 32,066 0 113 Tucson, Arizona May 21, 2009 #8 I'm eagerly anticipating (and also dreading) Alex's inevitable list of "fun facts." Well, him or Pat.
I'm eagerly anticipating (and also dreading) Alex's inevitable list of "fun facts." Well, him or Pat.
Davemcc Audioholic Spartan Jan 10, 2007 6,561 0 0 The Satellite of Love May 21, 2009 #9 Adam said: Isiberian said it correctly though - a lower terminal velocity, which implies a higher amount of drag. Click to expand... 'splain please how drag overcomes gravity, unless the suggestion is to use the atmosphere to slow the falling bullets downward path. If that's the case, why not just fire a bullet and drop a feather and see which one hits the ground first?
Adam said: Isiberian said it correctly though - a lower terminal velocity, which implies a higher amount of drag. Click to expand... 'splain please how drag overcomes gravity, unless the suggestion is to use the atmosphere to slow the falling bullets downward path. If that's the case, why not just fire a bullet and drop a feather and see which one hits the ground first?
Adam Audioholic Jedi Jul 5, 2006 32,066 0 113 Tucson, Arizona May 21, 2009 #10 Davemcc said: 'splain please how drag overcomes gravity, unless the suggestion is to use the atmosphere to slow the falling bullets downward path. If that's the case, why not just fire a bullet and drop a feather and see which one hits the ground first? Click to expand... You used the example of hammer and feather in the absence of an atmosphere, and that distinction is important because an atmosphere will cause them to fall at different rates because of drag. Terminal velocity is a function of gravitational acceleration and drag. The higher the drag, the lower the terminal velocity (i.e. the slower the descent to the ground). So, if one bullet has a lower terminal velocity than another bullet, and both bullets start from the same height above the ground, and both bullets have the same initial velocity in the direction of the ground, then the bullet with a lower terminal velocity (i.e. higher drag) will hit the ground after the other bullet does...regardless of velocity in other directions.
Davemcc said: 'splain please how drag overcomes gravity, unless the suggestion is to use the atmosphere to slow the falling bullets downward path. If that's the case, why not just fire a bullet and drop a feather and see which one hits the ground first? Click to expand... You used the example of hammer and feather in the absence of an atmosphere, and that distinction is important because an atmosphere will cause them to fall at different rates because of drag. Terminal velocity is a function of gravitational acceleration and drag. The higher the drag, the lower the terminal velocity (i.e. the slower the descent to the ground). So, if one bullet has a lower terminal velocity than another bullet, and both bullets start from the same height above the ground, and both bullets have the same initial velocity in the direction of the ground, then the bullet with a lower terminal velocity (i.e. higher drag) will hit the ground after the other bullet does...regardless of velocity in other directions.
