Project Haystack scientific definitions
baseUri | https://project-haystack.org/def/phScience/ |
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def | phScience |
doc | See above |
includes | ph |
is | lib |
lib | phScience |
version | 3.9.7 |
air |
The mixture of gases which surrounds the earth |
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air-temp |
Dry bulb temperature |
airQuality |
Measurement of contaminants in the air |
angle |
Measurement of the relative difference in direction between two vectors or phasors |
apparent |
Perceived quantity |
atmospheric |
Related to the atmosphere of the earth |
atmospheric-pressure |
Barometric pressure exerted by the weight of the atmosphere |
avg |
Average |
cloudage |
Percentage of sky obscurred by clouds |
co2 |
Carbon dioxide level |
current |
Movement of fluid or electricity |
daytime |
Time between sunrise and sunset |
dewPoint |
Dew point temperature at which water vapor will form dew |
direction |
Compass direction measured in degrees |
elec |
Associated with electricity, electric charge |
elec-current |
Electrical current |
elec-energy |
Electrical energy consumed |
elec-power |
Electrical energy consumed per unit time |
elec-volt |
Electrical voltage, potential difference |
energy |
Measure of ability to do work |
feelsLike |
Apparent temperature perceived when considering humidity, wind chill, and heat index |
flow |
Measure of volumetric flow of fluid |
fluid |
Liquid or gas |
flux |
Measurement through a given surface |
freq |
Occurrences per unit time |
gas |
Substance with neither definite volume nor shape |
humidity |
Percent relative humidity |
ice |
Water in its solid form |
illuminance |
Luminous flux hitting the inside of the sphere at a specific point |
intensity |
Measure of an electromagnetic field |
irradiance |
Energy received at a surface by area |
level |
Fill level of a vessel containing a fluid where 0% is empty and 100% is filled |
light |
Electromagnetic radiation in the visibile spectrum |
liquid |
Substance with definite volume but takes the shape of its container |
luminance |
Energy of light in a given direction |
luminous |
Relating to light as perceived by the eye |
luminous-flux |
Total perceived light in all directions |
luminous-intensity |
Perceived light in a particular direction per unit solid angle |
magnitude |
Size or extent |
phenomenon |
Aspect of scientific interest with measurable quantities |
pm10 |
Particulate Matter 10 |
pm25 |
Particulate Matter 2.5 |
power |
Energy consumed per unit time |
precipitation |
Amount of atmospheric water vapor fallen including rain, sleet, snow, and hail |
prefUnit |
Defines a preferred unit to be used with a quantity |
pressure |
Measure of force applied |
quality |
Quantity measured against standard metric |
quantities |
Quantities used to measure this phenomenon |
quantity |
Measurable property of a substance or phenomenon |
quantityOf |
Associates quantity as measurement of a phenomenon |
solar |
Relating to energy from the sun |
solar-irradiance |
Energy received on surface of the earth from the sun |
solid |
Substance with definite shape and volume |
speed |
Distance per unit time |
steam |
Water in its gas form |
substance |
Matter in one the three states solid, liquid, or gas |
temp |
Temperature - measure of hot and cold |
total |
Complete or absolute |
tvoc |
Total volatile organic compound (TVOC) |
visibility |
Distance at which light can be clearly discerned |
volt |
Electrical voltage, potential difference |
water |
Water in its liquid form |
weather |
Associated with atmospheric air or phenomenon |
weatherCond |
Enumeration of weather conditions |
webBulb |
Wet bulb air temperature |
wind |
Flow of air on surface of the Earth |
wind-direction |
Compass direction from which wind originates |
wind-speed |
Wind flow speed |