Long time back, driving across a desert I got fed up with a fly in the cab that was buggin' (geddit?) my ass.
I had been drivin' with the aircon goin' an' the windows up, so I dropped a window and shoo'ed that bugger right out.
Got a flash thought that he was gonna get the fright of his life; in the cab he had been flyin' along calm as can be, but once outside that window, that sucker was gonna find hisself doin' 70mph!
Ha!
you mean carlos rey
"When you're driving down the highway at 70 mph and turn on your headlights, the speed of the light emitted is traveling at the speed of light plus 70 mph. "
This is wrong. The light emitted is still travelling at the speed of light. It does not change.
I have another question,
Does the sun move? Would we know if it did?
dukerdog wrote:
The best part about these threads is trying to figure out which people are pretending to be stupid and which people are actually stupid.
So true!
mr right wrote:
"When you're driving down the highway at 70 mph and turn on your headlights, the speed of the light emitted is traveling at the speed of light plus 70 mph. "
This is wrong. The light emitted is still travelling at the speed of light. It does not change.
Really?
Jason Rexing has hovered in place for 24 hours. It only took him 13:55.
If it hovered high enough
well explained by some smart guy on google:
When you hover in a helicopter you are hovering in air. This air is moving along with the earth. In other words, the earth and the air above it are moving around and around on the earth's axis together.
Do you find this hard to believe? Many people do and so many people wonder, like you did, why this helicopter would not circle the earth by standing still for one day. But, this is why your question is so good. It is the kind of question that makes one stop and think of things that we normally do not think about and when we do we find ourselves surprised.
So, let's think about it for a second. What would it be like if the air did not circle the earth with us? Do you have any idea how fast the earth is spinning on its axis? The earth is about 6 million meters in radius. So its circumference is 2pir which is about 6 million times two times pi which comes to about 38 million meters around the equator. The earth travels this distance in one day; so that's 38 million meters divided by 24 hours giving us about one and a half million meters per hour which comes to about a thousand miles per hour. A hurricane can have winds of about 150 miles per hour and that causes a lot of damage. Can you imagine a constant wind of 1,000 miles per hour? Wow! Some storm!
Yours is the same argument made long ago by proponents of the 'stationary Earth, moving Sun' philosophy. 'If the Earth is moving,' they asked, 'shouldn't the ground move beneath my feet when I jump straight up, causing me to land elsewhere as the Earth moves along without me?'
You can see for yourself, on a smaller scale, how this works as you travel in a car or airplane at a constant velocity. Toss a ball straight up and it will drop straight back down relative to you, NOT falling behind as you move on ahead. The ball maintains its initial forward MOMENTUM in addition to its up and down motion. An observer outside your vehicle would see the ball travel along a parabolic path, combining its horizontal with its vertical motion.
Newton's first law says that an object in uniform motion will continue that motion as long as it is not acted upon by an outside force. It the case of a jumping person, a thrown ball, or a helicopter, the initial horizontal motion (or angular motion on the larger scale of a round Earth) that any object has when it leaves the Earth's surface stays with it even after contact with the surface is lost. That, by the way, is why satellites are launched to the east and near the equator, where the Earth's velocity provides the most 'free' momentum before the rocket even gets off the ground.
Heeelo wrote:
Ehh?
NO!!!
But it would circumscribe the globe