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How do airplanes fly upside down if it’s the shape of the wings that make them fly

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The shape of the wings is not the main reason that airplanes fly. Rather, the angle of attack for the wings is what creates most of the lift, as laid out in the book "Flight Physics" by Egbert Torenbeek and ...

How can a clear object be transparent and visible at the same time

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Clear objects are visible because they bend the light as it passes through. There are four basic things that can happen to light when it hits an object: Specular Reflection: Think of a mirror or metal spoon. The light bounces off ...

As light from a star spreads out and weakens, do gaps form between the photons

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The answer depends on how you look at light. However, in the most accurate approach, gaps do not form between photons as light spreads out. Light is made up of tiny fundamental bits called photons. A photon is a quantum ...

How can a material at a certain temperature have all of its molecules at the same energy

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A material at a certain temperature cannot have all of its particles at the same energy. In the basic definition of the word, "temperature" is the average random motional (kinetic) energy of the particles of a material. (Thermodynamics gives a ...

Did Archimedes use mirrors to burn up invaders’ ships?

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Archimedes did not use mirrors to burn up the Roman invaders' ships. This myth claims that by focusing the sun's rays, Archimedes' mirrors raised the temperature of the ships enough that they caught fire. While a concave mirror held in ...

Can the decay half-life of a radioactive material be changed

Question

The decay half-life of a radioactive material can be changed. Radioactive decay happens when an unstable atomic nucleus spontaneously changes to a lower-energy state and spits out a bit of radiation. This process changes the atom to a different element ...

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How do airplanes fly upside down if it’s the shape of the wings that make them fly

How can a clear object be transparent and visible at the same time

As light from a star spreads out and weakens, do gaps form between the photons

How can a material at a certain temperature have all of its molecules at the same energy

Did Archimedes use mirrors to burn up invaders’ ships?

Can the decay half-life of a radioactive material be changed

Does time go faster when you are farther away from the earth’s surface compared to the time on the surface of the earth.

What keeps a bicycle balanced

Is metal a good heat shield?

Can radio antennas emit visible light

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