RE: [MLUG - DISCUSSION] Unfolding Universe (discovery channel)

[Mike Miller <EMAIL:PROTECTED>]

On Tue, 4 Jun 2002, Ross, Matt wrote:

> > From here...  http://dbhs.wvusd.k12.ca.us/SigFigs/Density.html
> >
> > "A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The
> > block weighs 1587 g. From this information, calculate the density of
> > lead."
> >
> > Assuming that is correct, I get the following:
> >
> > (2.2*(1.587*10^6)/(4.50*5.20*6.00))/180' = 138.152896486230
> >
> > That is assuming that 1 kg = 2.2 lbs.  So it would take 139 people to
> > lift it.
>
> Given that it is a 1 meter cube, you have 4 sides for people to grab
> handles on.  That would mean 34 people would have to fit in a meter of
> space.  I don't know about you, but I've never seen anybody 2cm wide ;-)
>
> Trick question: It can't be lifted.  You would need more people to grab it
> than could get in there to grab it.


Very funny, but is 139 the correct number (which is then used to say it is
impossible).  Can't they use ropes.  ;-)  Remember that you said "handles
enough for everybody." (below)  You didn't say how long the handles are!

Mike


On Tue, 4 Jun 2002, Ross, Matt wrote:

> This reminds me of the 1 meter cube of lead.  If each side has handles
> enough for everybody, how many people does it take to lift the cube,
> assuming each person can lift their own weight, and assuming earth
> gravity?


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