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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

A campfire warms you from a distance through heat carried by electromagnetic waves.

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Your new ahaThermal Radiation

Thermal Radiation: Transfer of energy through electromagnetic waves. Source: Thermal radiation ↗

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More from Physics in Plain Sight

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  1. 21Light ejects electrons from a material in this effect, whose explanation helped earn Einstein a Nobel Prize.RECALL
    Photoelectric Effect

    The photoelectric effect releases electrons when light hits a material, and Einstein's explanation of it won a Nobel Prize.

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  2. 22This interaction makes a compass needle align with the Earth's magnetic field.RECALL
    Magnetism

    Magnetism arises from moving electric charge and aligns a compass needle toward magnetic north.

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  3. 23An imbalance of charge lets a rubbed balloon cling to a wall through this effect.RECALL
    Static Electricity

    Static electricity builds from an imbalance of charge on a surface, letting a rubbed balloon cling to a wall.

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