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yea -100 points for light pollution. =/
Yea. I was bitching about light pollution the other day.
I really wish I could experience the night sky without it.
I'm a westerner. I just happen to do a little research past what my TV tells me. =/
Originally posted by MerkabaMeditation
That would have to be some fast cement curing time since they placed 12 blocks every hour 24/7 for 20 years. Our modern cement can take 5-6 days to cure properly.
en.wikipedia.org...edit on 17-6-2012 by MerkabaMeditation because: (no reason given)
Originally posted by MerkabaMeditation
reply to post by Numbers33four
You can perhaps walk on cured cement after a few hours, but I think it would take 5-6 days before you could place another giant block of stone on top of the old one.
Edit: I just read that some government contractors require curing of 30-60 days before adding more concrete.edit on 17-6-2012 by MerkabaMeditation because: (no reason given)
Originally posted by MerkabaMeditation
That would have to be some fast concrete curing time since they placed 12 blocks every hour 24/7 for 20 years. Our modern cement can take 5-6 days to cure properly.
en.wikipedia.org...edit on 17-6-2012 by MerkabaMeditation because: (no reason given)
Originally posted by MerkabaMeditation
reply to post by Numbers33four
You can perhaps walk on cured cement after a few hours, but I think it would take 5-6 days before you could place another giant block of stone on top of the old one.
Edit: I just read that some government contractors require curing of 30-60 days before adding more concrete.edit on 17-6-2012 by MerkabaMeditation because: (no reason given)