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How Hot Air Balloons Work

How Hot Air Balloons Work

Description:: A brief description of how Hot Air Balloons work. This site is part of Marshall Brain's HowStuffWorks.com. This site includes fascinating pictures of balloons at different stages of their flight.
Keywords:: air, balloon, burner, hot, light, pilot, pressure,

Hits:408
Rated 1 out of 5 stars

Air Travelers

Air Travelers

Description:: Air Travelers is an introduction to the basic principles of buoyancy, properties of gases, temperature, and the technology involved in hot air ballooning. The resource was originally produced for teachers in the upper elementary grade (US).
Keywords:: air, airship, aviation, balloon, buoyancy, flying, force, gas, hot, multimedia, temperature,

Hits:194
Rated 1 out of 5 stars

The Mpemba Effect: Hot Water Freezes before Cold

The Mpemba Effect: Hot Water Freezes before Cold

Description:: The Mpemba Effect is a special phenomenon where hot water freezes faster than cold water. This site gives a basic introduction to the ideas involved.
Keywords:: cold, effect, faster, freeze, hot, mpemba, temperature, water,

Hits:138
Rated 1 out of 5 stars

What causes a mirage?

What causes a mirage?

Description:: Brief explanation with diagram from Scientific American.
Keywords:: air, heat, hot, light, mirage,

Hits:130
Rated 1 out of 5 stars

A Short History of the Missing Mass and Dark Energy Paradigms

A Short History of the Missing Mass and Dark Energy Paradigms

Description:: The paper traces the evolution of our thinking about the density of the Universe, with emphasis on the discovery of cold dark matter.
Keywords:: baryons, cold, dark, hot, mass, matter, universe,

Hits:157
Rated 1 out of 5 stars

The Air Is There (Air and Temperature)

The Air Is There (Air and Temperature)

Description:: What will happen to the bounciness of a ball if you cool it down or heat it up? Includes suggested learning outcomes and links for teachers.
Keywords:: air, balloon, bounciness, dirtmeister, experiment, gas, hot, lab, scienec, temperature,

Hits:192
Rated 1 out of 5 stars

Planck's Hypothesis

Planck's Hypothesis

Description:: In order to explain the frequency distribution of radiation from a hot cavity (blackbody radiation) Planck proposed the ad hoc assumption that the radiant energy could exist only in discrete quanta which were proportional to the frequency.
Keywords:: black, body, bohr, cavity, energy, frequency, hot, hyperphysics, hypothesis, jeans, law, planck, quanta, quantum, radiation, rayleigh, theory,

Hits:158
Rated 1 out of 5 stars

Origins Of The Stirling Heat Engine

Origins Of The Stirling Heat Engine

Description:: The Stirling Heat Engine was the inspiration of the Reverend Robert Stirling from Cloag in Scotland. The Scottish vicars first engine, built in 1816 was a large affair with a cylinder 3.05 metres (10 ft) high and with a bore of 0.6 metres (1 ft).
Keywords:: air, cycle, engine, heat, hot, motor, robert, steam, stirling,

Hits:109
Rated 1 out of 5 stars

What is the mirage effect?

What is the mirage effect?

Description:: Short description of how mirages occur.
Keywords:: air, hot, mirage, refract, warm,

Hits:163
Rated 1 out of 5 stars

Hot Science: Floating and Sinking

Hot Science: Floating and Sinking

Description:: A nice little demonstration of the concept behind hot air balloons and densities.
Keywords:: air, balloon, density, float, gas, hot, liquid, mass, material, sink,

Hits:307
Rated 1 out of 5 stars

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