11. The Sun has a magnetic field because of convection currents in its conducting plasma. 12. Chilled panels cool the rising warm air, which then drops, creating a natural convection current . 13. It is the work of convection currents in the gaseous envelope surrounding the star's just-collapsed core. 14. The bottom of the gaseous mix is heated, producing convection currents that move the U-238 down. 15. Convection currents in the sub-lithospheric mantle are the driving mechanisms that caused sea floor spreading to occur.16. As the sun sets, the convection current reverses and an offshore flow ensues causing a land breeze. 17. In addition, the building uses an convection currents that serve to ventilate the building all year long. 18. In the theory of plume tectonics developed during the 1990s, a modified concept of mantle convection currents is used. 19. Using weightlessness as a control factor, the scientists aim to learn more about convection currents in the earth's mantle. 20. Using weightlessness as a control factor, the scientists hope to learn more about convection currents in the earth's mantle.
