As devices and systems shrink to the micro- and nanoscale, the way heat moves fundamentally changes, challenging conventional engineering approaches and 

opening new frontiers in energy transport and conversion. At these scales, the classical 

assumptions of conduction, convection, and radiation break down, revealing intricate interactions between energy carriers that govern thermal behavior in unprecedented ways. These effects are not just scientific curiosities but also the key to transformative advancements in micro/nanoelectronics, thermal management, energy harvesting, and even space exploration. In this seminar, we will explore the physics of nanoscale thermal transport, highlighting how these emerging phenomena diverge from macroscopic expectations and enable unprecedented control over heat flow. A particular focus will be on experimental investigations of radiative heat transfer in the near field and sub-continuum gas conduction. We will also discuss the design and engineering of novel materials with tailored thermal properties, paving the way for next-generation energy technologies. By developing a deeper understanding of nanoscale heat transfer, we can engineer materials and systems that redefine energy efficiency and thermal management. What was once an invisible and elusive aspect of physics is now at the forefront of innovation, shaping the next generation of engineering applications.

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