The Useless Information Thread

[ardchoille]

That's right. The reaction is so violent that the water molecules are ripped apart, whereupon the hydrogen burns explosively. Cesium (another alkali metal) does an even better job. It is even more reactive than sodium.

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I remember these two metals and there's one more but I can't remember what it is (palladium?). We used to have fun with these in chemistry in college.

 

[KevinJS]

I remember these two metals and there's one more but I can't remember what it is (palladium?). We used to have fun with these in chemistry in college.

There are two more. Lithium is the lightest of the alkali metal and is only mildly reactive. Francium is the other one and is highly radioactive.

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[ardchoille]

There are two more. Lithium is the lightest of the alkali metal and is only mildly reactive. Francium is the other one and is highly radioactive.

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Ah, Lithium was the one I was thinking of.

 

[dbplumb]

Pressure on an enclosed fluid is transmitted equally and with undiminished force in all directions.
Pascal's law


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[Skull One]

Pressure on an enclosed fluid is transmitted equally and with undiminished force in all directions.
Pascal's law


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As long as said fluid is one consistency. If you have two fluids with different specific gravities, then it is possible under pressure to get a diminished/unequal transmission of force.

Skull One's law discovered during the summer of 2004 while qualifying for my regional racing license in my Corvette. When you cook your brake fluid past 600F, it causes the fluid to break down into two different fluids. Those two fluids then have different specific gravities which in turn result in an a change in the fluid dynamics of pressure. Thankfully when I felt the change in the brake pedal travel I was able to use the transmission to help slow the car before the next turn.

BTW: I had a mechanic install a brake fluid cooler an hour later, was able to complete my regional racing license test and passed with no restrictions.

 

[Pinkpoison]

i'm finding all this absolutely fascinating

 

[ardchoille]

i'm finding all this absolutely fascinating

As am I, its so refreshing to see highly intelligent people here

 

[CCLemon]

thanks for the info...

 

[scifan57]

That's right. The reaction is so violent that the water molecules are ripped apart, whereupon the hydrogen burns explosively. Cesium (another alkali metal) does an even better job. It is even more reactive than sodium.

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Potassium metal also has a good reaction in water. My high school chemistry lab kept it and sodium in kerosene filled bottles.

 

[dbplumb]

Lead is both malleable and ductile which allows a flat sheet to be bossed (beaten) into a tube with no joins. In fact a skilled plumber (worker of lead) can even make branches from this pipe, all with no joins and consistent wall thickness.


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[KevinJS]

Potassium metal also has a good reaction in water. My high school chemistry lab kept it and sodium in kerosene filled bottles.

I'd forgotten about that one. There is another alkali metal, Rubidium. It should be even more reactive, since it is further up the periodic table.

Lead is both malleable and ductile which allows a flat sheet to be bossed (beaten) into a tube with no joins. In fact a skilled plumber (worker of lead) can even make branches from this pipe, all with no joins and consistent wall thickness.

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How dumb can a person get. I never associated the Latin word for lead with the word "plumber". Thanks for that.

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[Pinkpoison]

Christmas pudding counts as one of your 5 a day.....nice bit of yummy information.

 

[dbplumb]

Christmas pudding counts as one of your 5 a day.....nice bit of yummy information.

5 ??? calories? meals ? I'm picking fruit servings
Of course you can smother it with cream and custard and destroy all good intentions
mmmm steamed christmas pudding
Watch out for the sixpenses

 

[Pinkpoison]

12 minutes past 12 on 12-12-12,won't happen again for 100 years.

 

[KevinJS]

12 minutes past 12 on 12-12-12,won't happen again for 100 years.

I'll probably miss it.

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