Whoah, this is huge

The biggest hole I’ve ever seen…

http://www.funmansion.com/html/fm-Really-Big-Hole.html

agreed

What is that apart from a really big hole :stuck_out_tongue:

OHHHH my i would fall down that if i was near it

Wow, That’s impressive. That spiraling road must be 20km long :eek: That’s one long hill.
:idea: Do they get snow there.

THATS MAHOOSIVE!

Cant for the life of remember it’s name, but I believe theres a mine in America that is larger…

Tis a copper mine IIRC…has it own railway…:eek:

can someone get the picture attached in here ? I cant get the site to load fully :frowning:

Here you are

:smiley:

how much water would you think that would hold lol

Well, um

15001500500=1,125,000,000 cubic meters.

Chop off about 1/3 cos its a concave hole.= 750,000,000 cubic meters

Or 750,000 cubic Km :confused:

Umm where have i gone wrong there? :confused:

I quickly make it about 100 thousand million imperial gallons or 470 million tons of water. (0.47km3)

Don’t think you can do it your way MC. Its round (and 750,000,000 cubic meters is 0.75km3)

wow now thats a lot of water :smiley:

Yeah, i was taking it as 1000m cubed is 1 cubic Km, when of course its 1 million cubic meters is a cubic km. Its 1000 meters on the side isnt it :amstupid:

And i never could do the volume of round things :flip:

lol thats too technical for me all i know its a offa lot of water lol

Maybe it’s just my warped humour …

… but when I saw the “hole” I immediately thought of TFW on a minimoto doing the wall of death routine

I could see him doing that too. Just make sure his health insurance is paid up. Knowing him, he would need another trip to the hospital.

Fortunately for TFW we don’t need health insurance in the UK, Darin :lol:

Actually, MC, 1 billion cubic meters is a cubic kilometer. :slight_smile: (10^3)^3 = 10^9

Making the rather huge assumption that we can model the hole as a cone, then we get the volume by (pi()h(r^2))/3, from what I can remember… (radius, r=1500m; height, h=500m)

So that would give us V ~= 1178000000 m^3 = 1.178 km^3…

Isn’t that right? I think the assumption gives us an under-estimate, too, since the volume would be greater due to the bottom being flat, rather than a point.

Could someone else check my formula and logic in this? I’m rather tired…

http://epod.usra.edu/archive/epodviewer.php3?oid=245856

2 1/2 mile wide, 3/4 mile deep cant do the conversions to compare :smiley:

http://www.ghosttowngallery.com/htme/kennecott.htm

dont know how it compares in size… but check out he pic of the 797 rock truck :eek:

Shame on you Aether - thought you were a bright boy - You’ve fallen into the oldest trap in the book, the cardinal sin of using the diameter not the radius so you’re a factor of 4 out in your estimate. :smackbum: What you going to do with all that extra water when its delivered :smiley:
My input estimate values were a bit different to yours but yes, self supporting banks will tend to be about 45 deg so yes, 1.5km at the top 0.5 km deep and therefore something like 0.5 dia at the bottom.
.
The volume of a truncated cone (actually a frustrum) is 1/3(pi)h(R^2+Rr+r^2) So I stick with my 0.47km3 above :moon:
.
.

He’d need to work the old TFW magic and tune it up a bit. :smiley:
To get enough centrifugal force to stay up round the inside of a 1.5 km dia drum he’d have to be doing more than 193 miles/hour. Its a doddle at the bottom though where the diameter is only 0.5 km he’d need to get to 111 MPH. :smiley: