Radioactive decay of the fuel produces heat which flows through the thermocouples to the heat sink, generating electricity in the process.

NICMOS contained a heat sink of solid nitrogen to reduce the thermal noise from the instrument, but shortly after it was installed, an unexpected thermal expansion resulted in part of the heat sink coming into contact with an optical baffle.

Thermocouples are placed in the walls of the container, with the outer end of each thermocouple connected to a heat sink.

At the end of this process with no heat sink but the internal parts of the ball (which are finite), there is no steady state heat conduction to reach.

In general terms, the larger the difference in temperature between the hot source and the cold sink, the larger is the potential thermal efficiency of the cycle.

Bulk motion of fluid enhances heat transfer in many physical situations, such as (for example) between a solid surface and the fluid.

A rising body of fluid typically loses heat because it encounters a cold surface.

On one hand, it was clear that viscous stresses would eventually cause the matter towards the center to heat up and radiate away some of its gravitational energy.

Without this heat retention effect, the average surface would be 18 C, in contrast to the current 15 C, and life would likely not exist.

And he showed that gasses such as CO2 absorb heat, thus acting like a blanket warming Earth's surface.

Another hypothesis is that some form of barrier exists in Uranus's upper layers that prevents the core's heat from reaching the surface.

Topics covered by experiments performed included soil mechanics, meteoroids, seismology, heat flow, lunar ranging, magnetic fields, and solar wind.

These waves travel upward and dissipate in the corona, depositing their energy in the ambient matter in the form of heat.

She cools his domain with Spring air, venting heat up to the surface, creating summer.

I like the heat.

Modifications include a reduction in the number, size, and placement of components, the addition of dabs of epoxy on the corners and edges of the CPU and GPU as glue to prevent movement relative to the board during heat expansion, and a second GPU heatsink to dissipate more heat.

The heat flux density is the amount of energy that flows through a unit area per unit time.

Elephants have difficulty releasing heat through the skin because of their low surface area to volume ratio, which is many times smaller than that of a human.

Heatwave after heatwave

Possible mechanisms for the vapor release are sublimation from about 0.6 km2 of exposed surface ice, or cryovolcanic eruptions resulting from radiogenic internal heat or from pressurization of a subsurface ocean due to growth of an overlying layer of ice.

Raising its wings and exposing the undersides increases the exposure of its body surface to the air by 16 , facilitating further heat loss.

I like the heat.

Extraterrestrial occurrences Sulfuric acid rain in the atmosphere of Venus evaporates before reaching the ground due to the high heat near the surface.

The tetrafluoroethylene in the container had polymerized into polytetrafluoroethylene, a waxy solid with amazing properties such as resistance to corrosion, low surface friction, and high heat resistance.

On Venus, a global resurfacing event may have shut down plate tectonics and led to a reduced heat flux through the crust.

The advent of surface to air missiles and surface to surface missiles, such as the Exocet, in the early 1960s changed naval warfare.

Let's go out before it gets hot.

Tom almost passed out from the heat.

Once the material diffusively and radiatively cools just beneath the photospheric surface, its density increases, and it sinks to the base of the convection zone, where it picks up more heat from the top of the radiative zone and the convective cycle continues.

Tom never complained about the heat.

Leathery chest pads that beat the heat.

I can remember the warmth of her hands.

Surface mining Surface comprises 90 of the world's mineral tonnage output.

My mother doesn't like the summer heat.

With heat from the bottom and heat from the top.

But we also need the heat from the top.

I'm already accustomed to the heat of summer.

I couldn't sleep because of the heat.

My father hates the summer heat.

I remember the warmth of her arms.

The worst thing about summer is the heat.

In the heat of the moment, Tom slapped Mary.

My computer broke due to the heat.

The fruits suffer the effect of heat.

I could not sleep because of the heat.