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Some Facts About Our Sun

Some Facts About Our Sun

 

Description:
The sun exerts a dominating influence on many aspects of the environment of mankind. Despite the advances of science, the statistics of the sun remain truly impressive compared with our everyday experience.
Keywords:

age, density, diameter, distance, earth, gravity, heat, heavy, hot, mass, power, radiated, radius, sun, temperature, volume,

  • Hits:318
  • Rated 1 out of 5 stars
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:830
  • 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:303
  • 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:662
  • Rated 1 out of 5 stars
The Mpemba Effect?

The Mpemba Effect?

 

Description:
There is in fact a large body of literature about initially hot water freezing faster than cold water and this phenomenon has been labeled the "Mpemba effect".
Keywords:

cold, effect, fast, freeze, hot, hyperphysics, mpemba, water,

  • Hits:188
  • Rated 1 out of 5 stars
Simple Flying Machines Theme Page

Simple Flying Machines Theme Page

 

Description:
Information about model hot air balloons, kites and paper airplanes. Includes teacher demonstrations, experiments and instructions for making models. Some of the activities whilst very good will need careful thought given to the safety aspects.
Keywords:

aerodynamic, air, airplane, balloon, fly, history, hot, kite, paper, plane, reference,

  • Hits:525
  • Rated 4 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:218
  • 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:306
  • Rated 1 out of 5 stars
Stirling Engine

Stirling Engine

 

Description:
Stirling engines run without noise or vibration and are truly an environmentally friendly device. They are a closed machine with no intake or exhaust which results in very quiet operation. Anything that gives off heat can be used to run a Stirling engine.
Keywords:

air, cycle, engine, heat, hot, motor, robert, steam, stirling,

  • Hits:245
  • Rated 1 out of 5 stars
Convection

Convection

 

Description:
Description of how heat transfer by convection works.
Keywords:

air, convection, energy, heat, hot, hyperphysics, rise, transfer,

  • Hits:458
  • Rated 3 out of 5 stars
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