Sentences with phrase «hotter than the air temperature»

Asphalt absorbs and retains heat from the summer sun, making it much hotter than the air temperature.

Our pets» paws may be tough, but pavement, metal, and tar - coated asphalt surfaces get extremely hot in the summer sun — in fact, much hotter than the air temperature — and can do some serious damage.

I also think that increasing urbanization would affect this factor, as urban surfaces would get hotter than the air temperature during the day and would not be as likely to cool at night to a temperature below the air temperature because they started out hotter at sundown and they have more thermal mass.

Not exact matches

Hot air is less dense than cold air, and the hotter the temperature, the more speed a plane needs to lift off.

The Michigan Tech chamber works differently due to cloud mixing between a hot and cold surface, the same process that forms clouds or fog over a lake on fall days when the water temperature is warmer than the air temperature.

The Michigan Tech chamber creates clouds through cloud mixing between a hot and cold surface — the same process that forms fog over Portage Lake on fall days when the water temperature is warmer than the air temperature.

Some aircraft with lower temperature tolerances will far worse than others, and certain airports — those with shorter runways, in hotter parts of the world or at higher elevations, where the air is already thinner — will suffer more.

Exposing your body to subzero temperatures does seem like a pretty unbearable experience, but people say it's actually more tolerable than an ice bath since the air is dry instead of wet — which makes it feel more like standing in front of a freezer on a hot day.

In most cases, when your heater blows cold air and the engine temperature is hotter than normal, it usually indicates an obstruction of debris inside the heater core.

The temperature controls took more than just a glance to make sure I wasn't going to blow hot air, and the seat warmers on low registered nary a BTU according to my back - side thermometer.

In the summer a dog house in the sun is hotter than the ambient air temperature outside,» she explains.

If the surrounding air is not considerably cooler than the animal's body temperature — as in the case of a hot, stuffy automobile — their cooling system will not work, their body temperature rises, and heatstroke can occur.

Did you know that car temperatures rise at a much faster rate than the outside air temperature and can be a very deadly place for our pets on hot days.

The global surface air temperature is currently approximatley 0.6 °C hotter than it was during the 1930s.

Have a look here for a more realistic attribution of the 20th century temperature trends based on more than just hot air.

It is more efficient in the winter to draw heat from the relatively warm ground than from the atmosphere where the air temperature is much colder, and in summer transfer waste heat to the relatively cool ground than to hotter air.

If the energy extracted after the CO2 doubling is endemic to a smaller volume of air than before then the energy density of that volume has increased, and by the definition of Temperature in kinetic theory of gases, it is therefore now hotter as a result of the CO2 doubling.

Even in areas where precipitation does not decrease, these increases in surface evaporation and loss of water from plants lead to more rapid drying of soils if the effects of higher temperatures are not offset by other changes (such as reduced wind speed or increased humidity).5 As soil dries out, a larger proportion of the incoming heat from the sun goes into heating the soil and adjacent air rather than evaporating its moisture, resulting in hotter summers under drier climatic conditions.6

We further estimate that, in most northern hemispheric regions, these changes in the likelihood of extreme summer mean WBGT are roughly an order of magnitude larger than the corresponding changes in the likelihood of extreme hot summers as simply measured by surface air temperature.

Humans can overheat if core body temperatures much above 98.6 ° F (37 ° C) are sustained.16 Normally, when skin temperatures is somewhat cooler than 98.6 ° F (37 ° C), the body loses its metabolically generated heat by conducting that heat outward from the core.7 Extremely hot and humid conditions, however, can make it difficult to keep this heat balance maintained.16 Extreme heat can be particularly dangerous to old, young, or frail people; to those suffering from cardiovascular, respiratory, or diabetic disease; and to lower - income people who do not have well - insulated homes or air - conditioning.17, 18

Supposedly, a +33 C global temperature uplift, literally from thin air (thin air which is colder than the surface, so something colder heats something hotter, hotter).

Here is what I learned from a ninety - second internet search: «The majority of people with asthma notice that cold, dry air causes more symptoms than mild - temperature or hot, humid air.»

During extreme heat events, nighttime temperatures in the region's big cities are generally several degrees higher28 than surrounding regions, leading to increased heat - related death among those less able to recover from the heat of the day.36 Since the hottest days in the Northeast are often associated with high concentrations of ground - level ozone and other pollutants, 37 the combination of heat stress and poor air quality can pose a major health risk to vulnerable groups: young children, the elderly, and those with pre-existing health conditions including asthma.29 Vulnerability is further increased as key infrastructure, including electricity for potentially life - saving air conditioning, is more likely to fail precisely when it is most needed — when demand exceeds available supply.

The MITS reasons that one molecule moving at ten times the average speed of air molecules at sea level must be much hotter than average, but this only shows a lack of appreciation for how something like temperature becomes meaningless without an abstraction on which to base it.

'' Thus there is no reason for the hot air below to rise; if it were to rise, it would cool to a lower temperature than the air already there, would be heavier than the air there, and would just want to come down again.

What can be said easily is that the dry case leads to a circulation with hot air rising and cold subsiding as long as cold means colder than the temperature that the hot air has when it has reached the top and cooled according to the dry adiabat.

According to the U.S. Environmental Protection Agency, urban areas regularly record air temperatures as much as 6 ° Celsius (10 ° Fahrenheit) hotter than the surrounding suburban and rural areas.

LSTs reflect how hot the surface of the Earth would feel to the touch in a particular location, and they can sometimes be significantly hotter or cooler than air temperatures.

So, the «RED HOT» spot -LRB--20 F) that's forcing Arctic air into St Louis is 35 degrees F «hotter» than it's «normal» temperature of minus 55F?

They are usually significantly hotter or cooler than air temperatures.

There is no temperature scale given for the images, but if these hot spots are ~ +10 C, then I think the headline figures are just a result of photographing A / C units from a long way away, rather than a well mixed air UHI as you suggest.

In Australia in the 1800s they experienced temperatures soo high that Birds & Bats fell out of the air dead of Heat Exaustion, in the early 1900s they had the biggest natural fires in the world and yet according to the Climate experts after adjustments it is hotter now than then.

Back radiation can only heat the ocean if the air temperature is warmer than the surface skin temperature (back radiation will contribute to the downward energy flux in all cases, but heat transfer, which is the net energy flow, always goes from hot to cold).

During hot, humid summer weather, many urban areas experience heat inversions — cold air in the upper atmosphere holds much warmer air close to the ground, sustaining higher - than - average temperatures and trapping smog.

The air particles speed up, in other words their temperature increases, the hotter air is less dense than colder air above and hence moves up (convection).

I worked out his equations in Excel, and a gas will move against a pressure gradient if it is moving with a temperature gradient: i.e., if the air is hotter than the water, the concentration of carbon dioxide in the water will be higher than in the air.

I see no mold growth in the photo so I assume the air temperature in the attic is higher than dewpoint - The attic is hot during the day.

Instructing your bot to increase the temperature of the air conditioner by 1 degree is a faster and easier way to control than using the keyboard and saying, it feels so hot here, please do something about it.

«If no air vents are added, the attic will be a little hotter or cooler than the outside air temperature, and that will transmit to an extent down into the current living space,» he says.