Drawing by Diane Mayers. Imagine a rod of fire moving at a very high rate of speed causing the air around it to be heated to extreme temperatures of 50,000° F. to 54,000° F. As the charge travels through the air, the dramatic heating expands the air causing hydrogen atoms to explode. [...]
[glossary_exclude] Sound of Lightning [/glossary_exclude] Description Photo courtesy of Moonraker Australia Lightning strikes the coastal ocean at a rate of about 2 strikes per square kilometer per year. Lightning in the open ocean is rare. Most people are very familiar with lightning because lightning strikes the land much [...]
Iceberg calving is a natural process, occurring when a rift opens in the edge of a glacier, caused by wind or water erosion, melting ice, or other events, resulting in an iceberg breaking away and falling into the ocean. The rate at which icebergs calve from glaciers increases with increased air and water temperatures. Polar [...]
This tutorial will introduce you to the topics and content available on the DOSITS web site involving the science of sound in the sea. It is suitable for grades 9-12. Additional science content is available in the Science of Sound section including Advanced Topics topics. In 1826 on Lake Geneva, Switzerland, Jean-Daniel Colladon, a physicist, and Charles-Francois Sturm, [...]
Sections: Baleen Whales Toothed Whales Pinnipeds Sirenians Marine Invertebrates Fishes Other Natural Sounds Anthropogenic Sounds - Share your audio with DOSITS! DOSITS is committed to making data publicly accessible for everyone. By sharing your audio, you're contributing to open information [...]
Frequently Asked Questions 1. What are common underwater sounds? 2. Why is sound important to marine animals? 3. How does sound in water differ from sound in air? 4. What sounds can marine mammals hear underwater? 5. How do animals use sound underwater? 6. How do people use sound underwater? 7. How does sound travel [...]
Sounds travels as a wave. The amplitude of the wave is related to the amount of acoustic energy it carries, or how loud the sound will appear to be. As the amplitude of the sound wave increases, the sound is perceived to be louder. There are several different ways to describe the amplitude of a [...]
The ocean is filled with sound. Underwater sound is generated by a variety of natural sources, such as breaking [glossary_exclude]waves[/glossary_exclude], rain, and marine life. It is also generated by a variety of man-made sources, such as ships and military sonars. You can listen to examples of many undersea sounds in the Audio Gallery. Some sounds [...]
Teacher Resources and Web Links New! DOSITS Online Educator Professional Development Certificate Program Classroom Activities A Cup Of Sound Thinking Inside the Box Spectrograms Stirring up Sound How to Build a Hydrophone Videos Science of Sound Video Marine Mammal Hearing Hearing in Marine Fishes DOSITS Underwater Acoustics Webinar Series Resources for Educators [...]
The Discovery of Sound in the Sea website will introduce you to the science and uses of Sound in the Sea. There are several major sections on the site such as The Science of Sound in the Sea, People and Sound in the Sea, and Animals and Sound in the Sea. You will find [...]
