Best products from r/estimation

If I recall correctly, it is fed by water flow from mountains above, so it probably wouldn't dry out completely, but it would drain enough to cease to be navigable. I believe that this book:
https://www.amazon.com/dp/B000U20486/
has a section that goes into detail on what would happen to the canal if humans disappeared, and a lot of other what if scenarios as well.

Assume: 44 gallon bin (thanks /u/BlazeOrangeDeeer), that the packing fraction of used staples is 1/4 (guess), that 25,000 staples weigh 1.9 lbs, and that the density of the staple metal is 8000 kg/m^3.

That gives me about 10,000,000 staples

If it is anything like these then about 10cm of pressure head, as that is about as much as is needed to push the hot water from the reservoir slowly through the coffee out of the top is, assuming negligible resistance through the grounds, because of low flow rate.

Could probably find out here

So, this thing is 1.3e8 km^(2). Mylar off Amazon costs roughly $1M/km^(2)... so it at those prices it would cost 130 trillion dollars to make.

In practice, I would estimate that amazon prices are probably roughly 10x what you would have to pay if you were producing it in bulk yourself... so it would only take around 20% of the world's economic output to produce.

Of course, then there's the question of getting 5 billion tons into orbit (assuming 1mil mylar).

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Incidentally, the economic math neglects material scarcity. Given that world plastic production is roughly 300M tons, it might take a little longer to do.

For the sake of calculations I'm going to assume that that is a 20 gallon trash bag (probably an overestimation), similar in size to these. Eyeballing it, I'd say it's around 2/3 full, so around 14 gallons, or 53 liters (via Google) of dollars. From this source, a dollar bill has a volume of ~.07 in^3 which is 0.00114709 liters (via Google).

Ignoring air content, that gives us about $46,000 in ones. Of course, wikipedia states that a dollar weighs about a gram, so that would be 46 kilograms, which is very heavy, and also a ridiculous sum of money to have in ones (even for a stripper). Therefore, air content must be a major factor. If we can estimate the weight of the bag (perhaps by comparing it to the weight of a bag full of leaves or other plant matter) we can probably get a closer estimate, using the ~1g weight of a dollar. However, I'm unable to find sources that state any kind of estimate for those weights, so I'm at a loss.

We can probably cut down our upper bound by guessing that there is as much air volume in the bag (below the dollar level, so in the 14 gallons) as there is dollar volume. This gets us down to $23,000, which is more reasonable but still high.

Farm Tuff 4-Wheel Double Deck Push Cart, 24-Inch by 48-Inch, Green https://www.amazon.com/dp/B00EORGASQ/ref=cm_sw_r_cp_api_9zjRybYFG6DT9

Ok, any thoughts on this one? Certain death with that steering and those wheels or no?