mogling Posted November 29, 2007 Report Share Posted November 29, 2007 My neighbour & I were wondering, where the exactly opposite place to Shetland would be in the world? {A bit like, if you took an orange and a long grafting needle and poked one end in through Shetland- where would it come out the other side? {being a 'diameter' / whatever you call the line that equally dissects / goes through a sphere... {scraped a 'C' for O Level Maths...} Quote Link to comment Share on other sites More sharing options...
Ghostrider Posted November 29, 2007 Report Share Posted November 29, 2007 By my reckoning, which is probably wrong, in deep ocean about half way between New Zealand and the Antarctic ice. Quote Link to comment Share on other sites More sharing options...
Medziotojas Posted November 29, 2007 Report Share Posted November 29, 2007 ^Yep, spot on--somewhere in the Southern Ocean between New Zealand and the Antarctic ice; approx. LAT -60 LONG -180 Map of antipodal points Quote Link to comment Share on other sites More sharing options...
trout Posted November 29, 2007 Report Share Posted November 29, 2007 What you're looking for is an antipode. ... with a little help from google maps ... ... taking Lerwick's town hall as our bearing at roughly Lat N 60.154445, Lng W -1.146322 we can then calculate the opposing by going South minusing the Latitude and going East minusing 180deg: Town Hall Lerwickhttp://maps.google.com/maps?ll=60.154445,-1.146322&t=m&z=20 Weet and coldhttp://maps.google.com/maps?ll=-60.154445,178.853678&t=h&z=2 You're plopped down past New Zealand between the Pacific Antarctic Ridge and the Udinstev Fracture Zone. Best to take a survival suit with you! Quote Link to comment Share on other sites More sharing options...
Pooks Posted November 30, 2007 Report Share Posted November 30, 2007 Or you could just use If the Earth were a sandwich. You simply drag the left map until the pointer is over where you want (Shetland) and then it will show you the direct opposite side of the earth in the second map. Quote Link to comment Share on other sites More sharing options...
Medziotojas Posted November 30, 2007 Report Share Posted November 30, 2007 Interesting--if it were possible to tunnel through the earth you couldn't reach Australia from any country, and you could only reach New Zealand from Spain or Portugal. I really do have too much time on my hands today. Quote Link to comment Share on other sites More sharing options...
Pooks Posted November 30, 2007 Report Share Posted November 30, 2007 ...and Morocco... Quote Link to comment Share on other sites More sharing options...
Frances144 Posted November 30, 2007 Report Share Posted November 30, 2007 So is it a lie about being able to tunnel to Australia, then? I'll tell my dog! Apparently a Patterdale terrier can tunnel 9 feet in a day so, using all this maths, how long would it take for my terrier to dig to this point in the "New Zealand between the Pacific Antarctic Ridge and the Udinstev Fracture Zone."? Fx Quote Link to comment Share on other sites More sharing options...
Twerto Posted November 30, 2007 Report Share Posted November 30, 2007 Pah whats the point in digging for Australia while at Spiggie beach now Quote Link to comment Share on other sites More sharing options...
Medziotojas Posted November 30, 2007 Report Share Posted November 30, 2007 ^^^Yep, never noticed that. It's possible, but only just, from one small area in the northern peninsula. [edit] Re: Morocco Quote Link to comment Share on other sites More sharing options...
Twerto Posted November 30, 2007 Report Share Posted November 30, 2007 bleh.. Quote Link to comment Share on other sites More sharing options...
Frances144 Posted November 30, 2007 Report Share Posted November 30, 2007 4,278,000 days by our calculations:- Based on diameter of earth : 12,756 km She digs 9 foot which approxs to 3m per day 3m into 12756000 = 4,278,000 days = 11,720.548 years!!!! Off she goes a-digging then! Quote Link to comment Share on other sites More sharing options...
KOYAANISQATSI Posted November 30, 2007 Report Share Posted November 30, 2007 I'm betting on both grafting needle and dog melting before getting halfway. Quote Link to comment Share on other sites More sharing options...
Medziotojas Posted November 30, 2007 Report Share Posted November 30, 2007 http://geography.about.com/library/faq/blqzdiameter.htm The diameter of the earth at the equator is 7,926.41 miles (12,756.32 kilometers).But, if you measure the earth through the poles the diameter is a bit shorter - 7,901 miles (12,715.43 km). This the earth is a tad wider (25 miles / 41 km) than it is tall, giving it a slight bulge at the equator. This shape is known as an ellipsoid or more properly, geoid (earth-like)./ So taking into account the fact that we're tunnelling from Shetland, the extra width at the equator is negligible. 9ft 2.7432 metresearth's diameter pole to pole 12,715,430 metres Therefore, it would take your dog approximately 4,635,254.45 days to tunnel to the other side. Quote Link to comment Share on other sites More sharing options...
Frances144 Posted November 30, 2007 Report Share Posted November 30, 2007 http://i42.photobucket.com/albums/e302/Frances144/IMG_4839.jpg so now we are talking 12,699 years! She's off....!. Fx Quote Link to comment Share on other sites More sharing options...
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