cancun mark:
this originated from a thread that got hijacked today regard passports or something, but for those that are metrically impaired, here is the simplicity and geometric beauty of the metric system:
one liter of water weighs one kilogram
one liter of water if squeezed onto a square centimeter will make a water column 1 meter high.
the pressure at the bottom of the 1 meter water column with be 0.1 of an atmosphere.
to heat the water 1 degree celsius, you will need 100 calories.
a cubic meter of water will weigh one metric ton.
and one liter of beer will cost ten euros.
see, easy huh? beautifully illustrated....
1 cm x 1 cm x 1000 cm = 10^(3) cm^3 = 1 L, so the folks saying 10 m are correct, and Cancun Mark is incorrect here.
To heat 1 L of water by 1 deg C takes 1000 calories, not 100. The preferred unit here, unfortunately, is not the calorie, but the joule. To add to the confusion, the "food" calorie is actually a kilocalorie. To differentiate food calorie (kcal), it is sometimes written Calorie (rather than calorie, e.g. 1 Calorie = 1 kcal).
A 10 m column of water (or approx. 30 ft) in 1 g gravity has an additional pressure of 1 atm (approx. 10 N/cm^2, or 10x10^4 N/m^2, or 100 kPa). If NASA's contractors had actually built the Mars probe rockets to the NASA specs (SI, or International System units) rather than customary US english, it would probably not have crashed...
10 E(funny symbol) for 1 L of beer is pretty steep. I'd expect to pay 2 or 3 E(funny symbol) for 0.5 L. But my preferred tipple is wine...
Strictly speaking, 1 cubic meter volume of water does not weigh (or mass, more correctly speaking) one ton. It will be a bit less, depending on temperature (or more, depending on salinity
)
Cheers!