They are suitable for general indicators of approximate temperature ("too cool", "too hot", "about OK"), or for various novelty items.
Certain plants prefer certain temperatures; if their pollen is found one can work out the approximate temperature.
If there is no bulb in the gap (Figure 4, right) then the average of the values of the bulb above and below the gap gives the approximate temperature.
In other models, the lowest floating bulb gives the approximate temperature.
The current pits are designed to contain molten plutonium in temperatures up to 1000 C, the approximate temperature of a burning aircraft fuel, for several hours.
He'd found one, a beauty, the right size and approximate temperature, with a transparent water-bearing atmosphere and an oversized moon.
The Draper point is the approximate temperature above which almost all solid materials visibly glow as a result of blackbody radiation.
The Sellmeier equations for the extraordinary index are used to find the poling period and approximate temperature for quasi-phase matching.
Just warm it to the approximate temperature of a cup of coffee.
The convective temperature (CT or T) is the approximate temperature that air near the surface must reach for cloud formation without mechanical lift.