Like the summer sun in polar regions, that burning sphere seemed to hesitate, ready to descend one degree toward the nadir; but then, with an almost imperceptible bound upward, it began to ascend toward the zenith, to be finally absorbed in a blinding daylight which was, at the same time, night.
Finally, the experiments in this study indicate that models based on surface renewal theory should be rejected for a fluidized bed, because they give unrealistically short contact times for packets of fluidized particles at the surface of a burning sphere.
The COCO2 product ratios at or near the surface of 9 × 10−3 m petroleum coke spheres burning in incipiently fluidized beds of 1.82 × 10−4, 5.95 × 10−4, and 1.1 × 10−3 m sand particles have been measured.
Two CCD cameras recorded the burning histories of the spheres.
"Burning schools, burning markets.
In this work, photoanodes with sub-micrometer cavities of different sizes and ratios were easily fabricated by burning off the polystyrene sub-micrometer spheres (PSSs) embedded in TiO2 paste.
The burning rain outside slid off the nano spheres and hissed on the ground.
An international team examining sediments from the end of the dinosaur age has discovered microscopic carbon spheres that can be produced only from burning fossil fuels.
Previous theoretical analysis of the viscous boundary layer on rotating spheres is extended to include porous spheres with surface blowing, thus providing a closer model of evaporating or burning fuel droplets in spray combustion environments.
And he bypasses the glass sphere that measures the duration of sunshine by burning marks on paper strips.
