However, the temperature gradient of cold to hot is not a circle: even though extreme heat can feel cold, it is still extreme heat (and vice versa). Fun fact: The atoms that make up all matter are ...

The investigation has revealed a large-scale temperature gradient within this bubble, called the Local Hot Bubble (LHB), meaning it contains both hot and cold spots. The team suspects that this ...

If the air is all the same temperature--cold or hot--light travels through it in a straight line. If a steady temperature gradient exists, however, light will follow a curved path toward the ...

He wondered, then, whether pouring hot water into a container would trap larger bubbles than pouring cold would, and whether that might explain the difference in sounds. His hunch proved correct. Dr.