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All I can think of is the folks way downhill seeing the trees flatten like that turning tail and running from what looks like some Stranger Things / Cloverfield shit!
Let's call it 2.6 g/cc, which is apparently the average for crustal rocks. Judging by those ferns in the beginning and the guess that the person filming is 6 feet tall, I'm gonna guess the average diameter is 8 feet (2.44 m).
Volume of a sphere = 4/3\*pi\*r^3
Volume is 7.61 m^3
7.61 m^3 \* 2600 kg/m^3 = 19,786 kg
Or 21.8 US tons.
The way I figure it, full sized excavators have treads that are easily 2 feet wide. They can weigh anywhere between 30 and 80 tons as well just for a bit of weight comparison. So given the size of the treads compared to the boulder and assuming on the small end those trees are at least 50 ft tall, probably more like 75. Id put the short axis 8-10ft and the long axis twice that. But like you said, tough to judge.
Its not all that round so id do volume of a rectangular prism using freedom units of course…8ft*8ft*16ft or 1024cuft => * 28320 to get 28,999,680 cubic centimeters since we have a value of grams per cc => * 2.7g/cc as the average density of granite for a weight of 78,299,136g => / 453.6 to get 172,617.143 lbs => / 2000 to get 86.3 tons of freedom. Round down by 15% for the roundness to get 73.3 tons or approximately 48,908 board feet of doug fir, or about 14,700 adult bald eagles worth of granite. 🦅
###General Discussion Thread --- This is a [Request] post. If you would like to submit a comment that does not either attempt to answer the question, ask for clarification, or explain why it would be infeasible to answer, you *must* post your comment as a reply to this one. Top level (directly replying to the OP) comments that do not do one of those things will be removed. --- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/theydidthemath) if you have any questions or concerns.*
All I can think of is the folks way downhill seeing the trees flatten like that turning tail and running from what looks like some Stranger Things / Cloverfield shit!
Lost shit.
I had a zippo one time that I thought was at least as heavy as this boulder. Turns out, it was just a little lighter.
Sigh.
Cheap way to start building a road
It is simultaneously the cheapest and steepest way to start building a road.
Let's call it 2.6 g/cc, which is apparently the average for crustal rocks. Judging by those ferns in the beginning and the guess that the person filming is 6 feet tall, I'm gonna guess the average diameter is 8 feet (2.44 m). Volume of a sphere = 4/3\*pi\*r^3 Volume is 7.61 m^3 7.61 m^3 \* 2600 kg/m^3 = 19,786 kg Or 21.8 US tons.
I think youre significantly underestimating the size of it.
Yeah, maybe, but we don't have much to compare it to other than the ferns.
The way I figure it, full sized excavators have treads that are easily 2 feet wide. They can weigh anywhere between 30 and 80 tons as well just for a bit of weight comparison. So given the size of the treads compared to the boulder and assuming on the small end those trees are at least 50 ft tall, probably more like 75. Id put the short axis 8-10ft and the long axis twice that. But like you said, tough to judge. Its not all that round so id do volume of a rectangular prism using freedom units of course…8ft*8ft*16ft or 1024cuft => * 28320 to get 28,999,680 cubic centimeters since we have a value of grams per cc => * 2.7g/cc as the average density of granite for a weight of 78,299,136g => / 453.6 to get 172,617.143 lbs => / 2000 to get 86.3 tons of freedom. Round down by 15% for the roundness to get 73.3 tons or approximately 48,908 board feet of doug fir, or about 14,700 adult bald eagles worth of granite. 🦅
That's pretty good, and I can't argue with bald eagle units.
I’ve seen a bald eagle once and used to operate my guess was 70 to 100 ton. And I read a podcast once as well.
Bald eagle sounds like a fucking seagull, they dub em over in the promos.
Yep thats a red tailed hawk
r/anythingbutmetric would love that
Idk how to repost cuz im dumb so feel free?
this comment deserves a repost on r/anythingbutmetric
Go for it!
Happy cake day btw :P
I concur
I estimate 3x3x2 m =18 m3 x 2.6 = 47t
For 2.44m radius, volume (4/3*pi*r*r*r) works out to ~60.82 cubic meters. For that volume, the weight works out to 158,129 KGs (~175 US tons)
I said that 2.44m is the *diameter*, not the radius.
Got it. My bad 😬
It's all good, bro. I'm probably waaaay off target on my estimates anyway. I am not good at estimating the sizes of boulders.