Water

Smiles35

Just a question about water. Is it made through a slow process here on earth?

Maximus Alexander

Nope, it's believed to have arrived on comets after the earth cooled down a few billion years ago.

biko

http://en.wikipedia.org/wiki/Origin_of_water_on_Earth
Some good sources mentioned, also comets.

stoneill

So, when you are told that that expensive bottle of volcanic filtered water is fresh, what they mean is that it is about 4.5 billion years old, or there abouts.

Gurgle

stoneill wrote: »

So, when you are told that that expensive bottle of volcanic filtered water is fresh, what they mean is that it is about 4.5 billion years old, or there abouts.

Yep, that's exactly it.

Though it may have recently filtered down through a mountain, so its freshly filtered really really old water. Doesn't explain why there's a 'best before' date on it.

RED PASSION

I heard if you drink tap water in London it has already passed through 15 people over many centuries

Maximus Alexander

Gurgle wrote: »

Yep, that's exactly it.

Though it may have recently filtered down through a mountain, so its freshly filtered really really old water. Doesn't explain why there's a 'best before' date on it.

I think the best before date has something to do with the plastic degrading and the water becoming polluted as a result. That's one of those anecdotal things I heard somewhere though, so can't be sure.

Gurgle

Well plausible is the next best thing to accurate....

Capt'n Midnight

Maximus Alexander wrote: »

I think the best before date has something to do with the plastic degrading and the water becoming polluted as a result. That's one of those anecdotal things I heard somewhere though, so can't be sure.

Dig a little deeper and it's not the plastic per se, it's the plasticisers in the plastic.

Yes they are safe, but are more soluble than the plastic itself. Also most plastics, like most hydrocarbons, can be degraded by sunlight, so eventually you could have problems that you wouldn't have with glass/cork