question: why do drink cans in room temperature conditions feel relatively cold?
comment: They conduct heat better than air, so they remove more heat from your hand than your hands surroundings, making it feel colder
passages: Section::::Calibration.:Equivalent temperature.
   Thermal comfort as a "condition of mind" is "defined" in psychological terms. Among the factors that affect the condition of mind (in the laboratory) are a sense of control over the temperature, knowledge of the temperature and the appearance of the (test) environment. A thermal test chamber that appeared residential "felt" warmer than one which looked like the inside of a refrigerator.
  
  Section::::Models.:Adaptive comfort model.:Physiological Adaptation.
   The apparent temperature (AT), invented in the late 1970s, was designed to measure thermal sensation in indoor conditions. It was extended in the early 1980s to include the effect of sun and wind. The AT index used here is based on a mathematical model of an adult, walking outdoors, in the shade (Steadman 1994). The AT is defined as; the temperature, at the reference humidity level, producing the same amount of discomfort as that experienced under the current ambient temperature and humidity.
  
  The formula is:
  
  where:
  
  BULLET::::- "T" = dry bulb temperature (°C)
  
  BULLET::::- "e" = water vapour pressure (hPa)
   Thermal conductivities of the elements (data page)
  
  Section::::Notes.
  
  BULLET::::- Ref. CRC: Values refer to 27 °C unless noted.
  
  BULLET::::- Ref. CR2: Values refer to 300 K and a pressure of "100 kPa (1 bar)", or to the saturation vapor pressure if that is less than 100 kPa. The notation (P=0) denotes low pressure limiting values.
  
  BULLET::::- Ref. LNG: Values refer to 300 K.
  
  BULLET::::- Ref. WEL: Values refer to 25 °C.
  
  Section::::References.
  
  Section::::References.:CRC.
  
  As quoted from various sources in an online version of:
   We must also consider the rate of heat loss through the lid of the vacuum flask (assuming it is made of polypropylene, a common plastic) where there is no vacuum inside the material. In this area, the three heat transfer modes of conduction, convection, and radiation are present. Therefore, the rate of heat loss through the lid is,
  
  Where
  
  BULLET::::- "k" is the thermal conductivity of air
  
  BULLET::::- "h" is the convective heat transfer coefficient of free air
  
  BULLET::::- "ε" is the emissivity of polypropylene
  
  BULLET::::- "A" is the outer surface area of the lid
   As Newton's law of cooling states, the rate of cooling of an object - whether by conduction, convection, or radiation - is approximately proportional to the temperature difference Δ"T". Frozen food will warm up faster in a warm room than in a cold room. Note that the rate of cooling experienced on a cold day can be increased by the added convection effect of the wind. This is referred to as wind chill. For example, a wind chill of -20 °C means that heat is being lost at the same rate as if the temperature were -20 °C without wind.
   Section::::Calibration.
  
  Section::::Calibration.:Temperature sensors.
   BULLET::::- formula_23 is the thickness (m) of the sample (measured on a path parallel to the heat flow)
  
  BULLET::::- formula_24 is the thermal conductivity (W/(K·m)) of the sample
  
  BULLET::::- formula_25 is the thermal resistivity (K·m/W) of the sample
  
  BULLET::::- formula_26 is the cross-sectional area (m) perpendicular to the path of heat flow.
  
  In terms of the temperature gradient across the sample and heat flux through the sample, the relationship is:
  
  where:
  
  BULLET::::- formula_9 is the absolute thermal resistance (K/W) across the thickness of the sample,
   Section::::Cast.
  
  BULLET::::- Cuba Gooding Jr. as Arlo
  
  BULLET::::- Skeet Ulrich as Tim Mason
  
  BULLET::::- Peter Firth as Colonel Andrew Brynner
  
  BULLET::::- David Paymer as Dr. Richard Long
  
  BULLET::::- Hudson Leick as Vaughn
  
  BULLET::::- Daniel Hugh Kelly as Colonel Leo Vitelli
  
  BULLET::::- Kevin J. O'Connor as Telstar
  
  BULLET::::- Rhoda Griffis as Pregnant Woman
  
  BULLET::::- Jordan Mott as Carl
  
  BULLET::::- Judson Mills as Dennis
  
  BULLET::::- Geoff Palmer as Vitelli's Helicopter Pilot
  
  BULLET::::- Ray McCort as Helicopter Pilot
  
  Section::::Filming.
   Laboratory standard for compressed gas
  
  BULLET::::1. Is a gas or mixture of gases in a container having an absolute pressure exceeding 40 pounds per square inch (psi) at 70 °F (21.1 °C); or
  
  BULLET::::2. Is a gas or mixture of gases having an absolute pressure exceeding 104 psi at 130 °F (54.4 °C) regardless of the pressure at 70 °F (21.1 °C); or
  
  BULLET::::3. Is a liquid having a vapor pressure exceeding 40 psi at 100 °F (37.8 °C) as determined by ASTM (American Society for Testing and Materials)
   Section::::Thermal stress.
   The coldest average annual temperature in a permanently inhabited location is at Eureka, Nunavut, in Canada, where the annual average temperature is .
  
  Section::::Extraterrestrial within the Solar System.
   According to the laws of thermodynamics, all particles of matter are in constant random motion as long as the temperature is above absolute zero. Thus the molecules and atoms which make up the human body are vibrating, colliding, and moving. This motion can be detected as temperature; higher temperatures, which represent greater kinetic energy in the particles, feel warm to humans who sense the thermal energy transferring from the object being touched to their nerves. Similarly, when lower temperature objects are touched, the senses perceive the transfer of heat away from the body as feeling cold.
   Section::::Fictional character biography.:Doom Patrol.
   Section::::Influencing factors.:Relative humidity.:Interplay of temperature and humidity.
  
  Various types of apparent temperature have been developed to combine air temperature and air humidity. 
  
  For higher temperatures, there are quantitative scales, such as the heat index.
  
  For lower temperatures, a related interplay was identified only qualitatively:
  
  High humidity and low temperatures cause the air to feel chilly.
  
  Cold air with high relative humidity "feels" colder than dry air of the same temperature because high humidity in cold weather increases the conduction of heat from the body.
   An empty aluminium can weighs approximately half an ounce (14.2 grams). There are 34 empty 12 ounce aluminium cans to a pound or 70 to a kilogram.
   A study conducted by engineering science students at Loyola College in Maryland suggested that the liquid content of aluminium bottles stays slightly colder than the liquid content of glass bottles when allowed to warm at room temperature. These results were not corroborated by a 2005 study at Bucknell University, which found that “the fluid in the aluminium bottle cools much faster than the glass bottle, and once removed from a cold source and exposed to room temperature, the glass bottle remained cooler longer than the aluminium bottle.” This conclusion is consistent with the fact that the bulk thermal conductivity of aluminium (237 W/(m·K)) is significantly higher than that of glass (1.1 W/(m·K)), as well as the fact that aluminium bottles are significantly thinner than glass. While the glass versus aluminium debate may make sense in connection with beer bottles, soft drinks are another matter. The majority of those bottles are currently plastic, while most beer bottles are glass.
   BULLET::::- formula_23 is the thickness (m) of the sample (measured on a path parallel to the heat flow),
  
  BULLET::::- formula_30 is the heat flux through the sample (W·m),
  
  BULLET::::- formula_31 is the temperature gradient (K·m) across the sample,
  
  BULLET::::- formula_26 is the cross-sectional area (m) perpendicular to the path of heat flow through the sample,
  
  BULLET::::- formula_8 is the temperature difference (K) across the sample,
  
  BULLET::::- formula_34 is the rate of heat flow (W) through the sample.
  
  Section::::Analogies.:Problems with electrical resistance analogy.
   Section::::See also.
  
  BULLET::::- Atmospheric temperature
  
  BULLET::::- Body temperature (thermoregulation)
  
  BULLET::::- Color temperature
  
  BULLET::::- Dry-bulb temperature
  
  BULLET::::- Heat conduction
  
  BULLET::::- Heat convection
  
  BULLET::::- Instrumental temperature record
  
  BULLET::::- ISO 1
  
  BULLET::::- ITS-90
  
  BULLET::::- Laser Schlieren Deflectometry
  
  BULLET::::- List of cities by temperature
  
  BULLET::::- Maxwell's demon
  
  BULLET::::- Orders of magnitude (temperature)
  
  BULLET::::- Outside air temperature
  
  BULLET::::- Planck temperature
  
  BULLET::::- Rankine scale
  
  BULLET::::- Relativistic heat conduction
  
  BULLET::::- Satellite temperature measurements
  
  BULLET::::- Scale of temperature
  
  BULLET::::- Sea surface temperature
  
  BULLET::::- Stagnation temperature
  
  BULLET::::- Thermal radiation
  
  BULLET::::- Thermoception
  
  BULLET::::- Thermodynamic (absolute) temperature
  
  BULLET::::- Thermography
  
  BULLET::::- Thermometer
  
  BULLET::::- Virtual temperature
  
  BULLET::::- Wet-bulb globe temperature
  
  BULLET::::- Wet-bulb temperature
   BULLET::::- A phase change material (PCM) cooling vest makes use of cooling packs that maintain much higher temperatures when refrigerated, frozen, or placed in water. These phase-change packs often contain liquids (typically nontoxic oils and fats) that solidify (like wax) typically between 55 and 65 degrees and usually last between 1.5 – 4 hours. This flexible cooled pack will then help reduce the wearers’ temperature for up to 4 hours.
  
  BULLET::::- A cool flow cooling vest makes use of a water flow system that pumps water through the vest using hoses.
   Section::::Heat capacity.
   It differs from other forms of electromagnetic radiation such as x-rays, gamma rays, microwaves, radio waves, and television rays that are not related to temperature. Scientists have found that all bodies at a temperature above absolute zero emit thermal radiation. People are constantly radiating their body heat, but at different rates. From these values, the rate of heat loss from a person is almost four times as large in the winter than in the summer, which explains the “chill” we feel in the winter even if the thermostat setting is kept the same.
   In September 2014, as part of the testing of the CUORE dilution refrigerator, scientists in the CUORE collaboration cooled a copper vessel with a volume of one cubic meter to 6 mK (0.006 K, −273.144 °C) for 15 days, setting a record for the lowest temperature in the universe over such a large contiguous volume.
  
  Section::::Detectors.
   The company utilizes its patented passive cooling technology (DE 20200600) in the Accelero S1 PLUS to enhance the level of natural convection from the GPU by letting more air to pass through the aluminum fins so that heat will be dissipated more efficiently.
  
  Some of the key products including Freezer, Accelero, Alpine, Fusion and Silentium series are registered trademarks in the EU and the US.
  
  Section::::Branding.
   BULLET::::- "Thermal conductivity": The container of hotter liquid may melt through a layer of frost that is acting as an insulator under the container (frost is an insulator, as mentioned above), allowing the container to come into direct contact with a much colder lower layer that the frost formed on (ice, refrigeration coils, etc.) The container now rests on a much colder surface (or one better at removing heat, such as refrigeration coils) than the originally colder water, and so cools far faster from this point on.
  