Structures are inherently weak at these expansion joints

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Presentation transcript:

These railroad tracks all buckled due to thermal expansion during an extremely hot day!

Structures are inherently weak at these expansion joints

This Oakland / SF bay bridge section failed during the 1989 Loma Prieta earthquake

The Unusual Behavior of Water  As the temperature of water decreases below 4oC, the volume of water increases so the density of water decreases.

Heat conduction Men replacing damaged heat-shielding glass ceramic tiles on space shuttle Columbia, after its thirteenth mission.

Convection  Because of convection, hot air rises and creates updrafts or thermals:

Examples of Convection Currents

Radiation Radiation is a heat transfer mechanism that utilizes electromagnetic waves to carry energy away from the emitting object. Radiated power is given by the Stefan-Boltzmann law:

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