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Full, unobstructed sunlight has an intensity of up to 930 fc. [2] [3] An overcast day will produce an intensity of around 100 fc.The intensity of light near a window can range from 100 to 460 fc, depending on the orientation of the window, time of year and latitude.
day: d = 24 h = 1440 min = 86.4 ks [note 3] day (sidereal) d ≡ Time needed for the Earth to rotate once around its axis, determined from successive transits of a very distant astronomical object across an observer's meridian (International Celestial Reference Frame) ≈ 86.1641 ks: decade: dec ≡ 10 years (10 a) = 315.569 520 Ms [note 2 ...
(ft2, sqfoot, foot2) Q857027: sq ft long code "sqfoot (foot2)" outputs square foot (and never feet) 1.0 sq ft (0.093 m 2) sqft m2; square inch: sqin Q1063786:
K is the horizontal saturated hydraulic conductivity (m/day) H is the depth of the water level in the hole relative to the water table in the soil (cm): H t = H at time t; H o = H at time t = 0; t is the time (in seconds) since the first measurement of H as H o; F is a factor depending on the geometry of the hole:
A variant of the metric perm is used in DIN Standard 53122, where permeance is also expressed in grams per square meter per day, but at a fixed, "standard" vapor-pressure difference of 17.918 mmHg. This unit is thus 17.918 times smaller than a metric perm, corresponding to about 0.084683 of a U.S. perm.
Approve Public University Bonds Construct and Renovate Issues $70 million for higher education facilitiesDetailsDetails
The darcy is referenced to a mixture of unit systems. A medium with a permeability of 1 darcy permits a flow of 1 cm 3 /s of a fluid with viscosity 1 cP (1 mPa·s) under a pressure gradient of 1 atm/cm acting across an area of 1 cm 2.
2. Enjoy Your Favorite Holiday Treats and Skip the Rest. You don’t have to avoid your holiday favorites. But we’re sure you have a few meals or traditions you enjoy more than others.