Sentences with phrase «emit much heat»

Moreover they are unreliable in colder temperatures, failing to emit much heat, are hostile to such gimmicks as dimmer switches, and their lifespan is limited by being frequently turned on or off.

Despite their blazing appearance, they don't emit much heat and they're usually less bright than a 100 - watt light bulb.

Not exact matches

While not quite as efficient as HID lights, these fluorescents have better color rendering properties (more of the light emitted is used by the plant) and produce much less heat when compared to HID lights.

If you're like me, before your baby came along, you may not have ever given much thought to the unseen chemicals those plastic dryer balls emit when heated.

The higher it is, the more intense the radiation is, just like a hot bar of metal emits much more heat than a cold one.

Then the researchers heated the vanadium dioxide - sapphire sample and, with an infrared camera, measured how much infrared light the sample emitted as it warmed.

The system is called an X-ray binary because it emits X-rays as material from the companion star spirals onto the much denser neutron star and is heated to very high temperatures.

Webb's giant sunshield will protect it from stray heat and light, while its large mirror enables it to effectively capture infrared light, bringing us the clearest picture ever of space objects that emit this invisible radiation beyond the red end of the visible spectrum — early galaxies, infant stars, clouds of gas and dust, and much more.

The temperature of the Sun is determined by measuring how much energy (both heat and light) it emits.

Isn't one important feature of cooling the stratosphere by emitting heat absorbed by ozone from incoming shortwave radiation, that this cooling has little effect on lower parts of the atmosphere since there is not much mixing between these air masses?

A huge laser delivers a large amount of energy in a short time to heat the walls of the larger chamber, and the radiation emitted from those walls in turn drives the small capsule to a very small size, increasing the density of the gases inside to much higher density than lead and heating it at the same time to very high temperatures required for fusion to occur.

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

This is why (absent sufficient solar or other non-LW heating) the skin temperature is lower than the effective radiating temperature of the planet (in analogy to the sun, the SW radiation from the sun is like the LW radiation, and the direct «solar heating» of the part of the atmosphere above the photosphere may have to due with electromagnetic effects (as in macroscopic plasmas and fields, not so much radiation emitted as a function of temperature).

But, the normal glass bottle will be much hotter on the outside than the thermos bottle, so emitting a lot more heat — and cooling faster.

The Sun does emit a much broader spectrum but outside the range of 250 to 2500 nm the amount energy per square meter is insignificant and it's not possible for such small amounts of energy to be able to * heat the land and water at the equator intensely *.

This much is true, and the only way that this imbalance will be eliminated will be for the Earth to heat up sufficiently that the rate at which thermal radiation is emitted will compensate for the increased opacity of the atmosphere to thermal radiation.

CO2 (which doesn't contribute much to the heating because it doesn't absorb in UV wavelengths) facilitates cooling by virtue of its ability to emit infrared radiation to space in proportion to local temperature.

What I think you meant is that at equilibrium they absorb exactly as much radiation from each other as they emit to each other, so there is no net flow of heat.

Under the previous president, Barack Obama, the U.S. used environmental rules to encourage the closing or costly upgrade of coal plants because burning the fuel emits almost twice as much carbon dioxide as natural gas and 28 percent more pollutants than heating oil.

Global climate is projected to continue to change — how much depends primarily on the amount of heat - trapping gases emitted globally.

Lost vegetation creates hotter surfaces that not only heat the air more severely during the day but also emit much more infrared radiation at night.

If a black box were the absorbing heat at maximum potential, then it theoretically emits as much as it receives, but only if it is out of equilibrium.

However, once equilibrium is as close as it can be then theoretically, re-radiation should occur at night, or at the point when the temperature goes down, and presumably this is where the greenhouse effect should be felt the most — yet matter emits heat very quickly — and quickly thermalise to new temperatures, so as not to give off that much radiation.

One particularly thorny aspect of the MJO is determining how much heat is transferred between the ocean and throughout the atmosphere by convection and how much heat is absorbed or emitted in the form of radiation.

Like with wood burning stoves / furnaces still present in older houses in Estonia and Latvia, you can not close the damper when there are still flames, the opportune moment for maximum effectiveness (as not to lose too much valuable heat) to close the damper is when the flames are gone, leaving just live coals / embers that do not emit CO..

7) The climate feedback parameter (W / m2 / K) tells us how much more heat is emitted as OLR or reflected as SWR as the planet warms.

If you used a parabolic mirror aimed at a warm wall to heat water you could heat it to the temperature of the wall then the heating stops because the object being heated, now at the same temperature as the heat source, emits back as much radiation as it receives.

(Example: Why does a human feel comfortable naked in a room at a temperature of about ~ 25 C when, given our skin temperature, we emit radiation at a rate of several hundred Watts, much greater than our metabolic production of heat of ~ 100 W.

By capturing thermal radiation (heat energy emitted from the earth's surface components and re radiating it in all directions — part of the same process that is accepted (somewhat like the «earth revolves around the sun accepted») to keep the planet much warmer than it would otherwise be in the absence of any of these molecules — it actually «cools.»

When the northern oceans are warmer than normal, they freeze later in the season, and since they emit to an almost perfect black body (deep space with no sunlight) they release much more heat and take up very little, esp.

One return flight from the UK to Australia might release as much CO2 as is emitted by heating and powering a home for six years.

How much fossil CO2 do you emit for heating / cooling?

To say that a body is not emitting as much as it is absorbing is just another way as saying that the body is heating up.

If you've ever walked barefoot over a steaming hot asphalt driveway, you know that these surfaces soak up much of the sun's energy and emit heat back into the air.

Before summer rolls around, think of meals you can make without these hot appliances, such as salads, sandwiches, or even recipes in a slow cooker, since these appliances don't emit as much heat.