how much does a gallon of water weigh
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128 ounces
128 oz
Stupid answer to say 128 oz, since that's a gallon's volume. Amazingly, it's close to the U.S. weight. 8.3 pounds per gallon, which is close to 16 oz (pint) multiplied by 8 (pints per gallon) in volume, but that's just coincidence.
Edited 5/4/2004 10:02 pm ET by barmil
Barmil, it's not "stupid" to say that, neither is it just "coincidence", rather it is the very definition of the density of water at sea level, just as 1 gram of water equals 1 milliliter equals 1 cubic centimeter also at sea level. The people who designed these systems decided these definitions.
Since a pint's a pound the world around, is an imperial pound heavier than an american one?
SamT
Heh heh heh.
>> The people who designed these systems decided these definitions.
Is this sarcasm or satire? The traditional English system of weights and measures was definitely not designed. It jus' growed. If it had been designed, a gallon would weigh 8 pounds exactly, not 8.3.
128 oz, since that's a gallon's volume.
Oz's are a unit of volume?? How stupid is that?You get out of life what you put into it......minus taxes.
Marv
You know the world has gone to hell in a handbasket when it is stupid to give the correct answer.
; )
If you do nothing, nothing will happen.
An Imperial (British, Canadian) gallon of water actually does weigh 10 pounds. An imperial gallon is 4.54 L, which is 4.54 kg of water at ~ room temperature, which is 10 pounds. This unit actually IS designed in the way implied by one of the other posters.
http://www.ex.ac.uk/trol/dictunit/notes.htm#volume
We Canadians have to work in all three systems, so we're pretty good with unit conversions.
I always remember 10 lbs per gallon, but then, since in the pumping business we all work in US gallons, I have to remember that it's 8.3 lbs per usgal. I prefer metric: 1 liter water = 1 kg; 1 liter = 10cm x 10cm x 10cm.
Wasn't a meter computed to be 1:10,000,000 of the distance from the equator to the pole? And the rest of the metric units from it?
BTW "metrics" means the study of measurement, IIRC.
SamT
Warning, these statements made BC.
I'm still trying to remember how many gals. in a cubic foot..my "city" water is billed by Cu.FT...12 bucks a month unless I go over 20,000 cubic feet...that must be a LOT of water.
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It is roughly 8 gallons in a cubic foot. Now I am going to have to look it up, or think about it all day.
I learned (so I remember) 62.4 lbs to th cubic Foot.
An ex-boat builder treading water!
7.48Bear
Sphere,
My water bill is $95.00 every other month as long as I don"t go over 12,000 in a month. Have had $150+ bills in the summer. 12 bucks ,thats a DEAL!
Edited 5/5/2004 8:59 am ET by G80104
coming right from the Kentucky River, got trout in my supply line <G>
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7.5 gallons to the cubic foot.
7.48 G/CF
Stuff only westerners usually need to know... Somewhere folks worry about human rights, gay rights, women's rights.... Out west we worry about water rights.
From my website:
Handy Water Equivalents
1 cubic foot = 7.48 gallons = 62.4 lbs. of water1 acre foot = 43,560 cubic feet = 325,828 gallonsAn acre foot covers 1 acre of land 1 foot deep
1 cubic foot per second (cfs) - 448.8 gallons per minute1 cfs = 646,272 gallons per day
Yup. 20,000 cu ft is one heck of a lot of water! And for $12 ?!?!? I'll take a thousand of those! Can UPS deliver? ; )Something is what it does.
Imperial Irrigation District, So. Cal., charges $12 for A day of Stock Water.
Stock Water is up to 1/4 acre foot for 1 day. Doesn't matter how little you use. The water is not suitable for human consumption.
That works out to about $20 for 20k cubic feet.
I think they are the cheapest irrigation in the southwest.
SamT
Computed at sea level at a specific gravity of 1...
Yur not at sea level so all bets are off.... Worse here....
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming.... WOW!!! What a Ride!
Another handy thing to note is that an inch of rain on one square of roof puts 62.3 gallons of water down the downspout.
-- J.S.
Edited to remove stupid mistake.
Edited 5/7/2004 7:34 pm ET by Uncle Dunc
an inch of rain on one square of roof is 8.3 cuft
Roughly 8 gals to a cuft = roughly 64 gals
62.3 sounds good to me
SamT
My mistake. I misread both the area units and the volume units.
Edited 5/7/2004 7:23 pm ET by Uncle Dunc
That is interesting!Something is what it does.
"Wasn't a meter computed to be 1:10,000,000 of the distance from the equator to the pole?"
I think it's 10,000, not 10,000,000.
Anybody know for sure?Those who beat their swords into plowshares will plow for those who don't
UHM,,,,,
Bossman,
10,000 meters is only 10 km, whazzat? 8 miles±?
SamT
I was thinking 10,000 KILOMETERS, not 10,000 meters.
Which would be the same as 10,000,000 meters.
Which is what he originally said.
You gotta remember - I was hired for my good looks, not what I know. (-:When I first looked in your eyes, I saw something I liked. Then I realized it was my reflection.
"In France the metric system officially started in June 1799 with the declared intent of being 'For all people, for all time'. The unit of length was the metre which was defined as being one ten-millionth part of a quarter of the earth's circumference. The production of this standard required a very careful survey to be done which took several years. However, as more accurate instruments became available so the 'exactness' of the standard was called into question. Later efforts were directed at finding some absolute standard based on an observable physical phenomenon. Over two centuries this developed into the S I. So maybe their original slogan was more correct than anyone could have foreseen then."
http://www.ex.ac.uk/cimt/dictunit/dictunit.htm
1799
Originally intended to be one ten-millionth part of the quadrant of the earth, the so called Meter of the Archives was based on a measurement of a meridian between Dunkirk and Barcelona. A platinum bar with a rectangular cross section and polished parallel ends was made to embody the meter. The meter was defined as the distance between the polished end faces at a specified temperature and it was the international standard for most of the 19th century. It was compared to other bars with optical comparators as a means of disseminating the unit.
1859
J.C. Maxwell suggested choosing as a natural standard, the wavelength of the yellow spectral line of sodium.
1866
By act of the U.S. Congress, the use of the metric system was legalized in this country, but was not made obligatory.
1872
The International Commission of the Meter made the Meter of the Archives the official definition of the meter and the standard of length. It was admitted that its relationship to a quadrant of the earth was tenuous and of little consequence anyway. The Commission had 30 prototype meters made using the Meter of the Archives as the reference.
http://www.mel.nist.gov/div821/museum/timeline.htm
remember reading that a pendulum, at Lat 45ºN, with a one second period, is one meter long
I'm pretty sure I heard that the circumference of a standard 33 RPM vinyl record is a meter. I'm not sure which came first though.
fresh water is 36 cu ft per long ton
sea water in the north atlantic is 35 cu ft per long ton
The phrase "for all people, for all time" reminded me of the origins of the metric system. It was a direct result of the French Revolution. The stated purpose of the metric system reflected the philosophy of the Revolution.
The revolutionary French wanted to throw out everything associated with the monarchy, including systems of measurement. They developed three new systems, one for physical measures, one for time, and a new calendar.
The physical measurement system was well received because in France at the time there were dozens of local systems throughout the country. Commerce realized the need for a uniform system, so it was widely accepted and eventually became the modern metric system.
Under the new calendar there were ten day weeks. Three weeks to a month so every month was exactly 30 days. Each month was named for a characteristic of the season in which it fell, Frostmonth, Hotmonth, and of course, Winemonth. To take care of the extra 5¼ days to make the year whole, there was a special month which varied between 5 and 6 days called, loosely translated, Partymonth. The first year of the new calendar was called year one. It was used in France for 12 years but was difficult to reconcile with the rest of the world. Napolean put an end to it.
The third new system, for time, broke the day down into a nice round 10 hours. However, since clocks were very expensive the few people who could afford them had no desire to change. And, since there was aready a uniform system used everywhere and it seemed to work fine, the new time keeping system failed from the start.
So, we owe the metric system to the French Revolution.
Edited 5/5/2004 9:05 pm ET by WAYNEL5
broke the day down into a nice round 10 hours.
Which would be 144 "minute" hours.
Which was no more odd than the old religious system of daytime being 12 equal hours and night being 12 equal hours. That meant that hours were variable in length excepting around the equinoxes. Made a bell ringer's life some complicated, I imagine.
But almost all time was local time until "railroad" or standard time was introduced in the mid 1800s.Occupational hazard of my occupation not being around (sorry Bubba)
Actually, the bell-ringer's life was easy, since no one had a clock to check him against. He could ring the thing whenever he felt like it.
The early clocks attempted to adjust for the length of the day vs night, making them even more complicated and less reliable than they would have otherwise been. Eventually, though, mechanical clocks forced the normalization of the hour to 1/24th of a day.
He could ring the thing whenever he felt like it.
Subject to interpetation. Vespers (I think) was easy, as it was dawn. There's a mid morning, and an afternoon ringing that would be more subjective.Occupational hazard of my occupation not being around (sorry Bubba)
I don't think the time thatthe bellringers rang the bells for vespers, midday and so on, was all that subjective. Wouldn't they have just used a sundial, and then divided the day into equal parts?
I would think you could do a decent job at night by watching the stars, but it would be a lot harder than the day time.
Adam
Actually, the bell-ringer's life was easy, since no one had a clock to check him against. He could ring the thing whenever he felt like it.
And that seems like a perfect opportunity to morph into those old jokes: I don't know his name, but his face rings a bell; he's a dead ringer for his brother, etc etc.
Don't you know who Quasimodo is?
No, but his name rings a bell.
of the distance from the equator to the pole?
As I remember, it's some fraction of the equatorial circumfernce, not longitutinal circumference (the planet being more nearly round in that direction, rather than oblated).
An optimist could suggest that this is to link the meter to an absolute value of 360° in a circle. A cynic might suggest that, since radians are pi based, that allows the SI administration to "fudge" the numbers as needed.
It (the meter) is also linked by interantional standard to some emmantation of a specific angstrom specified light emission. Or so my memory tells me.Occupational hazard of my occupation not being around (sorry Bubba)
I think if I remember right it's (meter) one (1) wave length of UV light.
BTW when are we going to join the rest of the world and go metric? It's so much easier to compute things.
Working in the semiconductor world for the last 20 years we've had to use a combination of ISO and archaic measurements and sometimes it get real confusing.
Pressure is measured in Torr's (760 Torr per 1ATM) Thickness is in either Angstroms or Micron's. Gas flow is sccm (standard cubic centimeters per minute). Temperature is measured in Celsius For the last year I've been working on a machine made by the Japanese and all flow pressures are in Pascals, what the h*ll is a Pascal? :) (ya I know what it is but I convert it to Torr in my head)
"in the land of the blind the one-eyed man is king..."
The wavelength of UV light is in the nanometer range.
(Remember, them chip masks can't be any more accurate than the wavelength of the light used to expose the chips.)
yeah, well, and fine...BUT If I travel at the speed of light and turn on my headlights do they work?
ok old Stephen Wright line..
Tangents are us
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According to my grandfather's theory, your headlights should work just fine. He reasoned that electric lights didn't really give off light at all...what they do is "suck out the dark". He used to walk into the room and turn on the "darksuckers". By his reasoning, your dark suckers should work just fine regardless of how fast you're going!
Regards,
Ron
lol..in my old smokin daze..I had a theory..the speed of dark is faster than the speed of light..like when ya flip the switch in a room, the dark gets out of the way faster than the light can fill it up..other wise youd see a line of not light, not dark move across the room..yeah right
man we had good pot then..
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Or about thoughts...
do they come from within the mind or from the outside in?
the old days.
it depends on the status of the door..open? or closed?
or like mine......screen
<G>
remember Thai stick? oooohhhh...
an Hash oil?...
Gonna get Andy all drooly , better stop.
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I remember on a buying spree in Cal back in the 70s.
Guy I didn't even know walks in the place and sets down a pound of thai stick. I about pooped a load right there.lol
Hash came wrapped in foil with an stamped insignia embossed into it.
Bought a bag of pot once that had a leaf that covered the bag inked on it with the words 'Make Herbs Free Like Bread and Circuses. Net Weight One Oz.'
Can't say they were necessarily the good ol' days tho'.
A pound of Stick? WOW..bong hits put most of my dates in a coma..lol...maybe it was me..?
got out of USN in '84..6 yr trip..flyin tho' so I colded the turkey..BTW, turkeys cant fly well..<G>
I'd give my....oh, nevermind
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You can measure the speed of light if you want using a table saw, a laser, and a mirror.
Set up the laser to shine perpendicular to the blade thru where the teeth are, so the light is blinking on and off as the teeth go by. Set the mirror up about 6 1/2 miles away to reflect the light back at the table saw. With the saw off and the laser on, turn the blade so the laser shines between two teeth. Clamp some kind of reference pointer to the table, like maybe a thin piece of ply with a hole thru it, lined up with another gap between two teeth, so you can see the light returning from the mirror.
Now here's the deal: If we turn the saw on, while each piece of light is on its way to the mirror and back, the blade will be moving. At the right speed and distance, the blade will move just enough to cover the hole with a tooth and block the returning light.
Suppose we have a 120 tooth blade going 3600 RPM. That's 60 revolutions per second times 120 teeth is 7200 blinks per second. Or 1/7200 second per blink. But we're interested in the time it takes to go from a gap to a tooth, which is half as much, 1/14400 second. With the mirror 6 1/2 miles away, the round trip is 13 miles. That gives us 13 x 14400 = 187,200 miles per second, not too far from the real value, 186,284.
Now if you're still reading this and laughing at it, here's the kicker: This is basically the method used by Armand Fizeau in the early 1850's to prove that the speed of light was not infinite, and to measure it. One of the most important fundamental constants in physics, the "c" in E = mc^2, is accessible using common carpentry tools.
-- J.S.
cool John, I'll get right on it..lol
one hole in theory tho'..it is my understanding that Mother Ann, a Shaker.."invented" the circular saw blade in the 1880's..having seen a cog on a loom..she added some bite to it, and the rest so they say is Her-story..
Almost all lumber I have come upon accuratly dated to the period b4 1880..has been riven, sash sawn, or pit sawn..
maybe we need to snopes this one out together?
the method you describe sounds like fun..I'll call my neighbor and have him open his medicine cabinet door and face it my way..and put new batteries in my laser level..6.5 miles will be BIG dot tho'..and bigger on the way home..
<G>
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Interesting that the circular saw blade dates from 1880. At the Norwegian Technical Museum I saw some sawmill equipment that used reciprocating straight blades, half a dozen or so, all mounted to the same drive mechanism.
Fizeau didn't actually use a table saw and laser. He had a big disk with holes near the edge, and a lime light projector. His base line was about 5 miles between two hilltops outside Paris.
-- J.S.
You can measure the speed of light if you want using a table saw, a laser, and a mirror.
John -
I'm trying to set this up with my Craftsman laser level. But I'm having trouble finding the beam with my mirror. Do I have to take into account the curvature of the earth? Will the earth's grafity bend the beam? What if it's raining?
Fuzzy Who?You get out of life what you put into it......minus taxes.
Marv
> What if it's raining?
You need a very large umbrella.
your right sorry brain fert:
In 1960 the meter was redefined as 1,650,763.73 wavelengths of orange-red light, in a vacuum, produced by burning the element krypton (Kr-86). More recently (1984), the Geneva Conference on Weights and Measures has defined the meter as the distance light travels, in a vacuum, in 1/299,792,458 seconds with time measured by a cesium-133 atomic clock which emits pulses of radiation at very rapid, regular intervals.
"in the land of the blind the one-eyed man is king..."
It was intended to be. Unfortunately, there was an error in the measurement of the distance from the equator to the north pole, so it didn't come out quite right. The story is actually a facinating one.
In 200 BC Eratosthenes measured the circumference of the world with a stick, and was only off about 10%. Pretty amazing.
Of course that depends upon the water, too. A cubic foot of (average) seawater is 65#, but potable water is like 63.2# (a legacy of leftover damage control training, having to know obscure values like that).
Occupational hazard of my occupation not being around (sorry Bubba)
"Of course that depends upon the water, too. A cubic foot of (average) seawater is 65#, but potable water is like 63.2#"
Cap,
And the temperature of the water, and the pressure of the environment. What was the original posters question? LOL
Jon
And an Imperial pint of beer (in a UK pub) is more than a wimpy American pint in a US bar.
Yeah, but what about an American pint in a UK pub?
That's not a measurement.
That's a disaster.
If you do nothing, nothing will happen.
Yeah, but what about an American pint in a UK pub?
Reliable sources tell me that the current price for 12 (US) oz of Budweiser is £2.50 (or nigh unto $5 apiece).Occupational hazard of my occupation not being around (sorry Bubba)
Why would anyone drink Bud in a UK pub when there is all that good ale on tap? This drives me nuts when I am in Scotland visiting my daughter. Scotland makes fantastic ales: Caledonian, Belhaven, St Andrews, etc. For some reason, young Scots trying to appear cool pass up the superior local brew and drink Bud out of a bottle. Next, they will be drinking Rolling Rock, another essentially tasteless product.
Why would anyone drink Bud in a UK pub . . . another essentially tasteless product.
Very odd, ture enough, but about half the Londoners I know drink Bud on either side of the pond. Now, in all fairness, about half of that half call it a "light" beer.
Rolling Rock not high on my list, either--but they now have an "ultra" out. It seems that everyone must now have a low-carb brew. Mich has Ultra, Coors has Aspen--even Shiner has slipped into the evil of mainstram marketing with Zeigenbock Lite. The only thing missing right now is "Atkins-Friendly" advertizing . . .
Give me a decent Porter any day. If no Porter, then bring me my Bud.Occupational hazard of my occupation not being around (sorry Bubba)
I cannot imagine why, or even how, one could be so blasphemous as to order American beer in a UK pub. <G>
DRC
Probly cause it would be served cold
That's cuz we're stuck inside for 6 months every year waiting for the snow to melt! We have a lot of time to read, think, read some more, etc. :<)
Regards,
Ron
"A pint, a pound, the world around" is how I was taught that a gallon weighs eight pounds.
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"A pint, a pound, the world around" is how I was taught that a gallon weighs eight pounds.
A good all-around quote, more versatile than you think. Order a pint in England, costs about a pound. Drink a pint, you put on a pound of weight.<g>
Water == 8lbs / gallon
Gas == 6 lbs / gallon
8 pounds
And a cubic foot of clay = 112 pounds, about the same as sand. Which is a mind-boggling figure - but true - look it up on the net - and the reason trench cave-in fatalities usually result from crushing, not suffocation. Our city suffered the first in April. Seocnd construction accident of the season (and it just started), first was related to tree clearing at night under lights. (Indianapolis)
remodeler
"....trench cave-in fatalities usually result from crushing, not suffocation."
Isn't that like saying, decapitation didn't kill him, he bled to death.... ;~]Gord
Why doesn't portland cement come in 50# bags, or another round number? I think it comes in 64# bags, which= 1 cu ft.
More minutia for those of us with too little else to keep our minds sharp.Pete Duffy, Handyman
Portland cement comes in 94# bags instead of 50# bags because it's intended to be used only by real men.
Those that can't lift a 94# sack of portland do what they do on Hometime and This Old House...they use Quikrete.
probably for the same reason concrete is measured by the yard and not by the tonbobl Volo, non valeo
concrete is sold by the cubic yard but it is designed, mfg and loaded by the weight in lbs.
http://www.onlineconversion.com/density.htm
1 water = 8.3454043 pound/gallon [U.S.]
Gord
Edited 5/4/2004 11:31 pm ET by Turtleneck
Edited 5/4/2004 11:32 pm ET by Turtleneck
8.34 lbs/gal
8.75 lbs
I answered this question a while ago in a thread on installing hot tubs in/on decks. http://forums.taunton.com/tp-breaktime/messages?msg=41901.23
Just out of curiosity, why do you need to know how much a gallon of water weighs? Installing a hot tub...?
Dinosaur
'Y-a-tu de la justice dans ce maudit monde?
A cubic foot of water weighs about 62.4 lbs at room temperature.
There are 1728 cubic inches in a cubic foot and 231 cubic inches in a gallon so . . . (62.4/1728)(231) = 8.34 lbs.
A gallon of water at room temperature weighs about 8.34 lbs.
Eric S.
A good way to work the conversions is to know that a liter of water weighs one kilo, and is a cube 0.1m on a side. And the conversions between English units and liters, kilos, and meters are readily available.