MITP 2009
Turbo Mini Forums

OOH, now theres a thought

If, we take into consideration the curvature of the earth, and the track is suposed to be FLAT, then of course there will be either a rise or fall in relation to the other end of the track

I felt really uncomfortable Joe staring at me like that...............

Ho ho ho would you believe, I calculated that if the track is FLAT, that the perceived incline would be circa 1.5 meters

SERIOUSLY!!

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

what!

On 28th Aug, 2009 Sprocket said:
Ho ho ho would you believe, I calculated that if the track is FLAT, that the perceived incline would be circa 1.5 meters

SERIOUSLY!!

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

the diameter of the earth at the equator is 7926.28miles (not getting into the complexities of the misshap of the earth) hense the aproximation

I drew a circle in CAD of 7926.28mm then draw a straight line at a tangent of 0.25mm. The distance from the circumferance to the end of the tangent is aproximately 0.00091mm, so seeing as we are in miles, we need to convert to meters. 1609.344m x 0.00091 = 1.465 meters

Where have I gone wrong

On 28th Aug, 2009 Sprocket said:
the diameter of the earth at the equator is 7926.28miles (not getting into the complexities of the misshap of the earth) hense the aproximation

I drew a circle in CAD of 7926.28mm then draw a straight line at a tangent of 0.25mm. The distance from the circumferance to the end of the tangent is aproximately 0.00091mm, so seeing as we are in miles, we need to convert to meters. 1609.344m x 0.00091 = 1.465 meters

Where have I gone wrong

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Team www.sheepspeed.com Racing

On 28th Aug, 2009 Nic said:

On 28th Aug, 2009 Paul S said:
Flat as a pancake, but hills on all sides:

OMG!!!

IS that a 3d map of the earth?????

Please tell me it is, please please please

I take it that cant be downloaded for free?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

yep i second Pauls calcs,

if fits with what i calculated a couple of months ago to settle an argument about the effect of the curvature of the earth on a swimming pool... sad bastard...

On 28th Aug, 2009 Sprocket said:

On 28th Aug, 2009 Paul S said:

On 28th Aug, 2009 Sprocket said:
the diameter of the earth at the equator is 7926.28miles (not getting into the complexities of the misshap of the earth) hense the aproximation

I drew a circle in CAD of 7926.28mm then draw a straight line at a tangent of 0.25mm. The distance from the circumferance to the end of the tangent is aproximately 0.00091mm, so seeing as we are in miles, we need to convert to meters. 1609.344m x 0.00091 = 1.465 meters

Where have I gone wrong

I used Pythagoras.

((((7926.28/2)^2)+(0.25^2))^0.5)-(7926.28/2)=7.8851617578263982666411109542429e-6 miles

or about 1/2 inch.

My CAD program doesnt work

I was being a lazy bastard, and just drew it in cad, lol, shows how acurate that is when its nearly an 8m drawing

Pythagoras is not that hard, but its fridy, its the weekend, and a bank holiday

Pythagoras.....he worked out earths curves as well as triangles?

Sproket,i think you have the decimal point in the wrong place as youve jumped from mm on your drawing to m in you calcs.That would make it 0.014m or 14mm.

Is it sad that i was temped to draw the same mock up in cad just to check?