Heavy Ice ???

Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons Interesting part was they showed ice made from heavy
water would not float(sank to the bottom) Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert

G=EMC^2 Glazier wrote:
Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons


Then why didn't you tell me about it yesterday so I could have watched
it!


Interesting part was they showed ice made from heavy
water would not float(sank to the bottom)


Yes, and every time I pour myself something to drink, and the ice cube
stays on the bottom, I worry that someone might have poured heavy water
into my ice tray, trying to kill me! But it always soon breaks loose
from the bottom and floats to the top, so far.


Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert


No Bert, if the ocean were heavy water too, the ice would still float.

But there is something different about heavy water such that if your
blood becomes composed of more that about 50% heavy water, you will
die, or so I've heard. It seems strange because the deuterium is just
another isotope of hydrogen, so you might thing they would be
chemically identical. But something is critically different.

Double-A

"Double-A" wrote in message
oups.com...

G=EMC^2 Glazier wrote:
Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons


Then why didn't you tell me about it yesterday so I could have watched
it!


Interesting part was they showed ice made from heavy
water would not float(sank to the bottom)


Yes, and every time I pour myself something to drink, and the ice cube
stays on the bottom, I worry that someone might have poured heavy water
into my ice tray, trying to kill me!

And why do you believe that heavy water would kill you???



But it always soon breaks loose
from the bottom and floats to the top, so far.


Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert


No Bert, if the ocean were heavy water too, the ice would still float.

But there is something different about heavy water such that if your
blood becomes composed of more that about 50% heavy water, you will
die, or so I've heard. It seems strange because the deuterium is just
another isotope of hydrogen, so you might thing they would be
chemically identical. But something is critically different.

Double-A

Double-A wrote:
G=EMC^2 Glazier wrote:
Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons


Then why didn't you tell me about it yesterday so I could have watched
it!


Interesting part was they showed ice made from heavy
water would not float(sank to the bottom)


Yes, and every time I pour myself something to drink, and the ice cube
stays on the bottom, I worry that someone might have poured heavy water
into my ice tray, trying to kill me! But it always soon breaks loose
from the bottom and floats to the top, so far.


Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert


No Bert, if the ocean were heavy water too, the ice would still float.

But there is something different about heavy water such that if your
blood becomes composed of more that about 50% heavy water, you will
die, or so I've heard. ....

g
... Brings new *meaning* to the term, LD50.

LD50 = concentration at which there is a 50% mortality rate. Values
are typically in p.p.m. ( parts per million ) or less. (ppb)

...It seems strange because the deuterium is just
another isotope of hydrogen, so you might thing they would be
chemically identical. But something is critically different.

Double-A

Hi Double-A I myself missed the first part. Tuesday at 8pm is Nova
here in Florida. Seems heavy water is not hard to make but the process
has to be done over and over. Bert

Hi double-A Having that neutron rubbing elbows with the proton inside
the nucleus changes lot of features of the hydrogen atom. What would
happen if I filled my Britney doll with heavy hydrogen? Would she go
over like a lead balloon? I don't think drinking heavy water can hurt
you. It might put lead in your pants. Human body is 76% water,and if it
was heavy water we would weigh lots more but not look fat. Would I drink
less Bud light it it was made from heavy water? Heavy water might be
what comets are made of. Maybe over time all hydrogen decayed into the
ratio we have today? Big Bang had only heavy nuclei? Well save some
stuff for tomorrow on this Bert

John Zinni wrote:
"Double-A" wrote in message
oups.com...

G=EMC^2 Glazier wrote:
Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons


Then why didn't you tell me about it yesterday so I could have watched
it!


Interesting part was they showed ice made from heavy
water would not float(sank to the bottom)


Yes, and every time I pour myself something to drink, and the ice cube
stays on the bottom, I worry that someone might have poured heavy water
into my ice tray, trying to kill me!

And why do you believe that heavy water would kill you???



"Despite the fact the light water and heavy water are chemically
identical, heavy water is mildly toxic. How can this be? Since heavy
water is heavier than normal water, the speed of chemical reactions
involving it is altered somewhat, as is the strength of some types of
bonds it forms. This affects certain cellular processes, notably
mitosis, or cell division, due to the difference in binding energy in
the hydrogen bonds needed to make certain proteins. Mouse studies have
shown that drinking only heavy water along with normal feed eventually
causes degeneration of tissues that need to replenish themselves
frequently, and leads to cumulative damage from injuries that don't
heal as quickly. One study likens the effects to those suffered by
chemotherapy patients. Heavy water toxicity manifests itself when about
50% of the water in the body has been replaced by D2O. Prolonged heavy
water consumption can cause death.

Don't get any funny ideas about using heavy water as a virtually
untraceable and undetectable murder weapon, though. Given its role in
breeder reactors for producing weapons-grade plutonium, production and
distribution of heavy water is closely monitored and controlled.
Obtaining a significant amount is damn near impossible for the average
Joe, and you'd need a LOT of it to kill anyone. It's also
expensive--one estimate puts the price at about $300 per kilogram. Hit
'em over the head with a bottle of Poland Spring and save yourself some
grief."

http://www.straightdope.com/mailbag/mheavywater.html



But it always soon breaks loose
from the bottom and floats to the top, so far.


Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert


No Bert, if the ocean were heavy water too, the ice would still float.

But there is something different about heavy water such that if your
blood becomes composed of more that about 50% heavy water, you will
die, or so I've heard. It seems strange because the deuterium is just
another isotope of hydrogen, so you might thing they would be
chemically identical. But something is critically different.

Double-A

G=EMC^2 Glazier wrote:
Hi Double-A I myself missed the first part. Tuesday at 8pm is Nova
here in Florida. Seems heavy water is not hard to make but the process
has to be done over and over. Bert

Meaning, meaning, meaning, meaning ...

Haven't you and Double-A figured it out ...

... has the penny dropped, yet?



RL
---
P.S. Don't take my word for it ... I don't recommend that anyone, try
it ... or "trust" what I say to be true ...

Nevertheless, my poor memory seems to vaguely, recall that consuming
too much heavy water can make one feel slightly "hung over".

.... Strange, that I couldn't find any references to this.

Double-A wrote:
John Zinni wrote:
"Double-A" wrote in message
oups.com...

G=EMC^2 Glazier wrote:
Saw NOVA last night. The show was about German scientists such as
Heisenberg realizing that heavy water was needed as a modulator to slow
down neutrons


Then why didn't you tell me about it yesterday so I could have watched
it!


Interesting part was they showed ice made from heavy
water would not float(sank to the bottom)


Yes, and every time I pour myself something to drink, and the ice cube
stays on the bottom, I worry that someone might have poured heavy water
into my ice tray, trying to kill me!

And why do you believe that heavy water would kill you???



"Despite the fact the light water and heavy water are chemically
identical, heavy water is mildly toxic. How can this be? Since heavy
water is heavier than normal water, the speed of chemical reactions
involving it is altered somewhat, as is the strength of some types of
bonds it forms. This affects certain cellular processes, notably
mitosis, or cell division, due to the difference in binding energy in
the hydrogen bonds needed to make certain proteins. Mouse studies have
shown that drinking only heavy water along with normal feed eventually
causes degeneration of tissues that need to replenish themselves
frequently, and leads to cumulative damage from injuries that don't
heal as quickly. One study likens the effects to those suffered by
chemotherapy patients. Heavy water toxicity manifests itself when about
50% of the water in the body has been replaced by D2O. Prolonged heavy
water consumption can cause death.

Don't get any funny ideas about using heavy water as a virtually
untraceable and undetectable murder weapon, though. Given its role in
breeder reactors for producing weapons-grade plutonium, production and
distribution of heavy water is closely monitored and controlled.
Obtaining a significant amount is damn near impossible for the average
Joe, and you'd need a LOT of it to kill anyone. It's also
expensive--one estimate puts the price at about $300 per kilogram. Hit
'em over the head with a bottle of Poland Spring and save yourself some
grief."

http://www.straightdope.com/mailbag/mheavywater.html

Amazing, Double-A ...
... You found a refernece.

... use your head and put it all together.

Not that it really makes any difference. ...

RL

But it always soon breaks loose
from the bottom and floats to the top, so far.


Hmmmmm ice to heavy to float
means if the ratio was reversed there would be no life on Earth. Our
oceans would have 100 feet of light water on top of solid ice. Bert


No Bert, if the ocean were heavy water too, the ice would still float.

But there is something different about heavy water such that if your
blood becomes composed of more that about 50% heavy water, you will
die, or so I've heard. It seems strange because the deuterium is just
another isotope of hydrogen, so you might thing they would be
chemically identical. But something is critically different.

Double-A

Ra♥ï�g L♂♀♫iε wrote:
G=EMC^2 Glazier wrote:
Hi Double-A I myself missed the first part. Tuesday at 8pm is Nova
here in Florida. Seems heavy water is not hard to make but the process
has to be done over and over. Bert

Meaning, meaning, meaning, meaning ...

Haven't you and Double-A figured it out ...

... has the penny dropped, yet?



RL


Well, there is a slight difference between the boiling points of normal
water and heavy water. D^2O boils at 101.4 C. So I suppose one could
concentrate the D^2O portion of tap water by simply boiling away the
normal water. I did something like this to concentrate home made
sulfuric acid one time. But you might have to boil a lot of water to
get just a little heavy water.


---
P.S. Don't take my word for it ... I don't recommend that anyone, try
it ... or "trust" what I say to be true ...

Nevertheless, my poor memory seems to vaguely, recall that consuming
too much heavy water can make one feel slightly "hung over".

... Strange, that I couldn't find any references to this.


You mean there has never been a secret government study, where
unsuspecting patients were given heavy water to drink? But then the
results are probably still classified.

Seems like I can recall some such study were patients were fed
plutonium with their breakfast cereal. But you know how embarrassing
these things can be for the government when they get out! Better to
keep it all covered up.

Double-A