Creating a Lake

[Spiveyman]

Renze, it may very well have been your dam comments that I remembered, but I read this whole thread straight through so it was hard to remember all the details. Anyway, this helps confirm my thoughts on dam placement in the valley. Cool that Bernouille can explain why dams hold water and why airplanes can fly. I'll all too familiar with him, I had a job interview one time where I was given a blank piece of paper and told to derive Bernouille's equation starting with the second law of thermodynamics. As for the depth of a boat, I think that was Archimedes area of expertise. I bet those two would have been fun at parties.

 

[schmism]

Eddie any more overview shots? you should finnally be mowing grass around it by now right!

 

[patrick_g]

Renze, I guess I missed the part about small ponds letting boats sink further down than big ponds with all that HUGE weight of water held by the dam. I'll take the canoe out and mark the water line and them put it in a smaller pond and check the difference (unless I choose too small of a pond the second time and the canoe sinks from lack of support!

Oh by the way, I'm sure you are very comfortable in MKS, CGS, SI, whatever... but bar, Kg, and the like leave the vast majority of the readers here behind (as do your earlier mentioned torque figures) It is fine with me unless you post in Dutch which will leave me behind as I took German and contrary to misinformed opinion in some quarters, it is not nearly the same. I see folks confuse Deutsch and Dutch.

Pat

 

[3RRL]

Hey Pat,
lol ... I am Dutch (or was) and he still leaves me behind.

 

[Spiveyman]

Hey Pat,
lol ... I am Dutch (or was) and he still leaves me behind.

How are you "was" Dutch? Did you get un-Dutched? Did it hurt? I'm just plain ole' Uhmerican. (Earl Pits style)

 

[3RRL]

Tim,
I immigrated to the USA 50 years ago from Holland.
Naturalized Citizen since 1962.
LOL ... So now I am un-Dutch...only American!

 

[Spiveyman]

Well, Welcome to America!!! Glad to have you here. (Although you've been here longer than I have. ) My family has been here since before the revolution. Had a Greatgreat... ...greatgrandfather who served together with George Washington when they were both young officers. So my roots are pretty well established as American. I think it's cool that you consider yourself "only American." Very cool. Bravo. Now I'm even more impressed than just seeing your tractor-handy-work!

 

[patrick_g]

I hope the intent of my previous post commenting on the metric figures posted by Renze is not misunderstood by anyone, including Renze. I appreciate Renze's participation and have no difficulty following his units BUT I fear a lot of folks are turned off by "foreign" units and discount his comments due to a knee jerk reaction instigated by their own ignorance, or worse.

3RRL, Welcome aboard the US Express. Glad to have you. We are a nation of immigrants but some of us tend to forget that. I am part (small part) American Indian and I really get a chuckle when I hear the term ORIGINAL INHABITANTS applied to ANYONE living on the North American continent. Baring extraterrestrials, everyone residing on this continent was either an immigrant or a descendant of someone who immigrated to get here. No humans originated here.

I worked for a while with a Dutch engineer whose only fault of consequence was an over dependence on Siemens brand components.

Pat

 

[Renze]

Renze, I guess I missed the part about small ponds letting boats sink further down than big ponds with all that HUGE weight of water held by the dam. I'll take the canoe out and mark the water line and them put it in a smaller pond and check the difference (unless I choose too small of a pond the second time and the canoe sinks from lack of support!

Oh by the way, I'm sure you are very comfortable in MKS, CGS, SI, whatever... but bar, Kg, and the like leave the vast majority of the readers here behind (as do your earlier mentioned torque figures) It is fine with me unless you post in Dutch which will leave me behind as I took German and contrary to misinformed opinion in some quarters, it is not nearly the same. I see folks confuse Deutsch and Dutch.

Pat

Just to make sure: The canoe water line in small pond vs. ocean was said by someone (cant remember the name) to prove that the pressure of water was -NOT- depending on the size of the lake... But Archimedes' law strongly agrees with that.


The thing about gravity dams (made of clay, dirt or stones) with no load bearing structures (like a concrete dam is) is off course, gravity:
It should be heavy enough so that the water pressure cant move the weight of the dam..


About the metric system: Some day even America will have to convert... Canada already set the pace, the gas pumps measure liters instead of gallons...
But maybe that's just a conspiracy of the petrol companies, to cover up that you guys have to get used to paying European prices for gas...

 

[Renze]

I appreciate Renze's participation and have no difficulty following his units BUT I fear a lot of folks are turned off by "foreign" units and discount his comments due to a knee jerk reaction instigated by their own ignorance, or worse.

Pat

I could try to convert my thoughts in American units, but the principle of pressure is so much easier understood when pressure is coupled to meters of water column, and in increments of 10.... It makes the math a lot more transparent.

Sure some americans would disagree, but in defence i say:
its easier to teach an american:
how many millimeters go in a centimeter,
how many centimeters go in a decimeter,
how many decimeters go in a meter,
how many meters go in a hectometer, and
how many hectometers go in a kilometer

.... the answer to these 5 questions is the same : 10 !!

Now ask a european how many inches go in a foot, how many feet go in a yard, how many yards go in a mile.... when i asked a Canadian relative, even he couldnt tell me without hesitation !!!


I think the biggest cause of the New World and England not adopting metric, is that it's a French dictator (Napoleon Bonaparte) who ordered for this new standard, and forced it upon all citizens of the French empire... England and France were sworn enemys for ages.