Topics from August 2017
- What are the main health issues caused by noise?
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- What is the effect of noise on animals?
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- Why is it said that even underwater animals are not spared of noise pollution?
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- What is the difference between sound waves and waves moving across water?
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- Why is it said that supersonic aircraft surpass the speed of sound?
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- Why is it said that wavelength, frequency and pitch are important characteristics of sound wave?
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- What is meant by amplitude and Intensity?
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- How do human beings make sound?
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- Why is it said that the ear plays a wonderful role in receiving sounds?
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- Why is it said that echo is one of the aspects to be taken care of?
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- Why is it said that the Ancient Greeks were very familiar with acoustics?
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- What is meant by the term ultrasound?
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- How is ultrasound useful for animals?
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- Why is it said that ultrasounds are useful in SONAR?
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- Which are the three main parts of the human ear?
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- How do sound signals reach the brain?
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- What is meant by a treble?
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- What is an amplifier?
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- What is a loudspeaker?
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- Why is it said that carbon microphones were a turning point in the history of microphones?
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- Which are some common microphones that can find around?
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- Why is it said that a microphone plays a very important role in day to day sound?
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- What is meant by the term sonomicrometry?
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- Why is it said that some birds can predict weather using infrasound?
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- Why is it said that some animals use infrasound for communication?
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- Why is it said that some animals can hear infrasounds?
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- What is meant by Infrasound?
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- Why is it said that ultrasound waves can be used to destroy unwanted solid deposits in our body?
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- How is ultrasound useful in medicine?
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- How is acoustic microscopy useful?
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- Why is it said that some mammals have ears adapted for better hearing?
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- Why is it said that the hearing range of animals varies greatly?
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- Why is it said that the hearing ability of kangaroo rats is special?
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- Why is it said that the barn owl can work out the direction and height of sound?
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- Why is it said that bats use sounds to hunt?
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- Why is it said that birds are best known for their musical communication?
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- Why is it said that sound is very important for animals living in water?
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- What are the main purposes of bird communication through sound?
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- Why is it said that whales are amazing communicators using sound?
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- Why is it said that humpback whales are beautiful singers?
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- Why is it said that whales use specific channels through which sounds travel?
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- Why is it said that howler monkeys use loud calls for communication?
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- How does a drum produce sound?
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- Why is it said that wind instruments produce sound differently?
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- How is sound produced in string instruments?
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- How does electronic music produce sound?
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- What is meant by acoustics?
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- How is the altitude of a flying airplane determined?
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- What is a sextant?
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- Which is the Land of Midnight Sun?
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- What is Ionosphere?
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- Why does the Mediterranean Sea appear blue and the Atlantic Ocean green?
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- What is weightlessness?
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- What was the Ice Age?
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- Why is it harder to walk uphill than downhill?
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- How do deep-sea divers operate?
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- How many stars can we count at night?
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- What are Black Holes?
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- When was the first artificial satellite launched?
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- What is the Nitrogen Cycle?
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- How do astronauts walk in space?
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- What is magnetism?
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- What is a Kaleidoscope?
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- What are ultraviolet rays?
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- What are Auroras?
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- Why are head injuries dangerous?
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- Why do doctors examine the pulse?
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