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A basic explanation of sound: what it is, how it travels, how you characterise sounds (frequency, wavelegth and intensity) and how they are made.
The basics of sound waves, including really useful animations of how sound travels
The History of Space Science and Astronomy includes a huge amount of information on: The Millennium - A Space and Astronomy Timeline; Man-in-Space Firsts ; Space Factoids
Covers a large amount of information on space and space related topics - both recent news and archive.
A simple explanation of why sound travels long distances at night. There are some attractive graphics.
Includes a vast amount of information regarding space, space exploration and associated topics.
Explore the stories of three exciting space missions: "Friendship 7" - John Glenn Orbits the Earth; "Apollo 11" - First Moon Landing and "STS-7" - First American Woman in Space.
Read about how sound travels in the ocean, the SoFAR channel and one experiment to test how far could you hear a sound underwater.
Multiple choice questions about outer space at three levels. Requires some knowledge of NASA missions as well as Earth and Space knowledge.
Multimedia magazine containing space topics such as Life on Mars, the Solar System, Earth moon, Sun system and links to other space websites
Showing 21 - 30 of 266