racookpe1978
Nuclear
Just a question:
Stonehenge began to be built between 2500 and 3000 BC, or about 5000 years ago.
If you were charged with making a memorial to commemorate Stonehenge - with today's materials - so that it would be accurate to the north star, the rise and set of the sun at the solstices, the stars, solar eclipses and lunar eclipses in the year 7100 - 5000 years from now, what would you use to build a similar size and shape monument?
How would you set the foundations and material so they would withstand that long in the open air, but still be accurate to the (future) position of the stars? Granted, many stones at Stonehenge have fallen, and it is very crude model, so you'd have the responsibility of not "re-making" the rough outlines we see now, but (for example) you'd have to carve sharp, accurate edges and making the monument so the "bridges" would not fall.
But how would you do the job? If you pour concrete for the foundation, what would you use as rebar to keep the concrete good that long? Would you make everything of stainless steel? Granite and stainless?
Stonehenge began to be built between 2500 and 3000 BC, or about 5000 years ago.
If you were charged with making a memorial to commemorate Stonehenge - with today's materials - so that it would be accurate to the north star, the rise and set of the sun at the solstices, the stars, solar eclipses and lunar eclipses in the year 7100 - 5000 years from now, what would you use to build a similar size and shape monument?
How would you set the foundations and material so they would withstand that long in the open air, but still be accurate to the (future) position of the stars? Granted, many stones at Stonehenge have fallen, and it is very crude model, so you'd have the responsibility of not "re-making" the rough outlines we see now, but (for example) you'd have to carve sharp, accurate edges and making the monument so the "bridges" would not fall.
But how would you do the job? If you pour concrete for the foundation, what would you use as rebar to keep the concrete good that long? Would you make everything of stainless steel? Granite and stainless?
