MATERIALS SCIENCE & PHYSICS
Why Bent Plastic Turns White: Crazing, Micro-Voids, and Polymer Stress
materials sciencephysics
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It is all about pressure
How Do Airplanes Fly?
Airplanes fly by generating lift with their wings. Air moving over the curved top of the wing travels faster, creating lower pressure that pulls the plane upward.
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It is all about spinning electrons
How Do Magnets Work?
Magnets work because electrons in some materials spin in the same direction, creating a collective magnetic field. Here is how that actually produces the force you feel.
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It moves heat, it does not make cold
How Does a Refrigerator Work?
A refrigerator does not create cold. It moves heat from inside the fridge to outside. Here is how that works using a circulating refrigerant.
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SCIENCE HISTORY
Did Isaac Newton Really Discover Gravity?
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