That’s only in 2 dimensions. Try 4.
Here’s the whole thing, although not at full size:
Ever wanted to buy a lighthouse? Now you can! It’s Lighthouse Season!
Exactly how would they be able to determine that?
This was largely true for most newspapers for most of their history, but not any more. Digital subscriptions are now the biggest source of revenue, and the online ad market is dominated by a few large players like Google.
The largest stone ever moved by humans is at the base of a statue of Peter the Great in St Petersburg Russia.
It wieghts 1250 tonnes and was hauled out of a swamp several kilometers from its current site. As this was the 18th century, it was moved entirely by human power, before being put on a barge and floated in.
Wow. We have a boulder that is 3’x3’x3’. We use it to mount horses more easily. One day my gf told me she wanted it moved about a foot over from where it has been sitting for 30 years. I tried using a digging bar to slide it. Nope. Then I asked a buddy to help me. Nope. Then my buddy called his son, who brought over two friends. The five of us moved the boulder but it was difficult.
That’s 4725lbs, or 945lb per person. No wonder it was difficult.
I didn’t make that claim. It’s a Wikipedia cite.
So, I guess you’re just going to have to ask them.
Wiki, if you’re listening…
I’ll have to mention this to my gf. She thought I could “slide it over a foot” by myself.
I was also intrigued by that and other facts in both entries, and I noticed a couple of discrepancies between the two.
It seems to be accepted that they hunt, eat, sleep and mate on the wing. Very interesting bird.
Reminds me of an old claim that some shark could smell a drop of blood a mile away. Not saying it’s not true…
That would be my ex. 
Careful about that, or you will be carrying couches around by yourself… 
Curious what the conversion was based on here. Not casting aspersions – rather, asking in the grand SDMB tradition of fighting ignorance.
A 3’x3’x3’ stone is 27 cubic feet in volume.
Google tells me that stone is around 100 lb/ft3 in density.
I get 2700 pounds or 540 per person.
The density is the wildcard which is probably highly variable depending on stone type.
Google converts 100 lb/ft3 into 1.6 g/cm3 (punch “100 lbs/cubic foot in g/cm3” into Google).
Then I quickly found this, but haven’t ground-truthed it against anything else:
When you scroll down to the ‘Rock Densities’ section … it seems that most common types of rock (not minerals) cluster around 2.7-2.8 g/cm3. Splitting the difference and converting 2.75 g/cm3 into lb/ft3 yields ~171.7 lb/ft3.
171.7 lb/ft3 X 27 ft3 = ~4,636 lbs. So tofor pretty much had it, given that the type of rock was unspecified.
EDIT: OK, I’ve ground-truthed the ThoughtCo link with this scholarly link to some Univ of British Columbia geophysics course material. Pretty much in line with ThoughtCo (but a little more persnickety, specifying wet vs dry densities and such).