In this HVAC training video program, Jim takes you through a simplified approach to troubleshooting comfort cooling refrigeration systems. Working from the perspective that "you need to know what ...

For the first time in the world, researchers (From Korea University, Sukbae Lee, Ji-Hoon Kim, Hyun-Tak Kim) have succeeded in synthesizing a room-temperature superconductor (Tc≥400 K, 127∘C) working ...

EDITOR'S NOTE: The paper this report was based on has been retracted because eight of its 11 authors no longer have confidence in the data it contained. On Wednesday, a paper was released by Nature ...