high G forces - Page 3

Uncamitzi · #31 03-16-2004, 05:39 PM

Quote:

Originally posted by Porter
Refraction of light through the atmosphere.

Or, since the moon is made of cheese it could be swelling up as it nears the ocean over that way.

The true answer is: optical illusion,

try this:

next full moon ... get a dime (a euro is too big...

) as the moon is coming up at the horizon hold the dime out at full reach and cover the moon (it should just cover it) later when the moon is at or near the zenith cover the moon again. tell me what the result is...

Sonar · #32 03-16-2004, 05:53 PM

Quote:

next full moon ... get a dime (a euro is too big... ) as the moon is coming up at the horizon hold the dime out at full reach and cover the moon (it should just cover it) later when the moon is at or near the zenith cover the moon again. tell me what the result is...

-A lost dime.....my kids took it to buy icecream ...

/Sonny

ensteele · #33 03-16-2004, 06:14 PM

I think everybody needs to believe in something, so I believe I will have another drink.

Andy · #34 03-17-2004, 12:53 AM

Quote:

Originally posted by Uncamitzi

The true answer is: optical illusion,

try this:

next full moon ... get a dime (a euro is too big... ) as the moon is coming up at the horizon hold the dime out at full reach and cover the moon (it should just cover it) later when the moon is at or near the zenith cover the moon again. tell me what the result is...

Wouldn't this be dependant on the length of ones arms?

Could your arms be longer when horizontal as opposed to vertical due to the force of gravity?

Is gravity really a force or just a distortion in space/time?

ps How big is a dime?

Shadow248 · #35 03-17-2004, 12:04 PM

Quote:

Originally posted by Andy
Wouldn't this be dependant on the length of ones arms?

Could your arms be longer when horizontal as opposed to vertical due to the force of gravity?

The distance between you and the dime would be longer if your arm is oustretched horizontally than if it was outstretched vertically because of the relation of your head to your arm. Think about it. Your head would put your eyes closer in the vertical position because your eyes are at a raised position relative to your arm's pivot point to begin with. Therefore the reduced distance between your eyes and the dime would oh no i've gone cross-eyed.

Sonar · #36 03-17-2004, 12:10 PM

-Besides that ..... wich of the THREE dimes are you referring 2 ? ..... oops ... my eyes was crossed ...

Whatta heck .... I'll pick the one in the middle .... -nope no moon ... 2 many clouds ... and in the middle of the day 2 ... !!

/Sonny

Uncamitzi · #37 03-17-2004, 12:27 PM

Quote:

Originally posted by Andy

Wouldn't this be dependant on the length of ones arms?

Could your arms be longer when horizontal as opposed to vertical due to the force of gravity?

Is gravity really a force or just a distortion in space/time?

ps How big is a dime?

Unless there is a abnormality in ones physic then the difference should be minimal... it's mostly to show scale.. (as that's what causes the optical illusion..

I think that it's mass that creates both gravity and the distortion in space/time

If I remember right .. a dime is just a little smaller than a 2 pence piece.. Not sure though, I haven’t been to the UK for 30 years...

Listen to mitch, the av guy, trying to sound like a scientist....ha ha ha....

oab_au · #38 03-17-2004, 06:32 PM

Quote:

Originally posted by Porter
Refraction of light through the atmosphere.

Or, since the moon is made of cheese it could be swelling up as it nears the ocean over that way.

Refraction of light, but does that not happen in all directions? Vertical and Horizontal.

Swelling up as it nears the ocean, but what if you live on the West Coast?

So many questions, so little time.

Harvey.

lee · #39 03-17-2004, 07:02 PM

You all realize it isn't the the moon looks bigger on the horizon don't you, it's that it looks smaller when it's up high in the sky.

Even if you don't believe the rest of this, the above is true

I mean think about it. Ever seen a hot air balloon? Looks pretty big down near the ground doesn't it - but tiny when it gets up in the sky, yes?

Now a lot of people would try to tell you that's because it's farther away when it goes up. Don't believe them for a second....they let some air out of it when you weren't looking.

Or look at the Sun (with sunglasses). Do you really think it doesn't look big because it's 93 million miles away? Now who has a tape measure that long?

I'm still working on what they do to airplanes, but I think I'm close...I've been collaborating with the "Honey, I Shrunk the Kids" people. I'll publish when I get the whole theory worked out.

Shadow248 · #40 03-17-2004, 10:34 PM

Actually, one time, I saw this really tiny airliner flying above me and I tried to jump up and grab it...it saw me and turned away. But I swear I would have had it!

Uncamitzi · #41 03-17-2004, 11:43 PM

shaking his head and wondering why he bothered....

GreenMarine · #42 03-18-2004, 12:19 AM

Quote:

Originally posted by b3lha

You mean negative acceleration.

Actually as Lee will probably tell ya... there is no such thing as "deceleration" or a "negative acceleration" all it is is an acceleration in another direction... the direction part is the key... that is what tells ya weather or not you are decreasing your velocity or not... Remember Velocity hast to do with a given direction... almost all matter on earth will have a velocity... unless we are talking about Nuclear Physics... Then I'm not the man to talk to..

Even though I used to want to be a Nuclear Physicist..

b3lha · #43 03-18-2004, 04:01 AM

Quote:

Originally posted by GreenMarineSVX

Actually as Lee will probably tell ya... there is no such thing as "deceleration" or a "negative acceleration" all it is is an acceleration in another direction... the direction part is the key... that is what tells ya weather or not you are decreasing your velocity or not... Remember Velocity hast to do with a given direction... almost all matter on earth will have a velocity... unless we are talking about Nuclear Physics...

I disagree. You are right that the direction is important. Velocity is speed in a given direction and Acceleration is rate of change of Velocity.

When you are falling to the ground, the direction of your velocity is towards the centre of the earth. When you actually hit, the ground exerts a force which causes the negative acceleration.

From the time you hit, until the time you stop, you are still moving downwards, compressing the ground, so in relation to your velocity, the acceleration is negative. Even though it is positive in relation to the ground.

Phil.

Sonar · #44 03-18-2004, 07:36 AM

-Soo, in other terms, THE DARN EARTH JUMPED UP AND SMACKED YOU !!

Talk about negative force ....

/Sonny

lee · #45 03-19-2004, 03:02 PM

Quote:

Originally posted by Uncamitzi
shaking his head and wondering why he bothered....

Mitch, you gave it your best, it's just we're all nearly hopeless. Thank goodness there's somebody who's still willing to tilt at that windmill.

Actually, you are right about optical illusion, and the general physics concensus is it really is that it's smaller when up in the sky, not big at the horizon - although that might seem like "splitting hairs". It has to do with angle subtended by the eye, coupled with size references when near the horizon vice none when up higher.

Now I have to go back to my shrinking airplane theory. I've been talking to the rocket launch guys where I work and they say it's all too complicated to explain to me, but has something to do with shrinking as fuel is expended, kinda like an emptying bladder.