there for a while‚ since the 1960’s-why do some moths produce clicking sounds when bats attack them?” Most tiger moths emit ultrasonic clicking sounds to signal how toxic they are to bats. But Bertholdia trigona emits ten times as much sound‚ “indicating that it might be serving a different purpose entirely”. Aaron and colleagues collected the moths and put them in a cage with brown bats. They hypothesized that if the sounds were used for warning purposes the bats would ignore the clicks and eat
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through the manipulation of both audio and visual imagery. A single scene’s emotional extent is carried through a successful analysis of these factors presented. A directors style and intended impact is developed through the interpretation of the sound and score. In most genres of film‚ score is relatable‚ common and designed to target specific feelings or moods to enhance
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Biology Assessment Task - Communication Describe cataracts and some of the technologies that can be used to prevent blindness from cataracts. Cataracts: A cataract is a clouding of the normally clear and transparent lens of the eye which results in decrease of vision. It is not a tumour‚ a new growth of skin or tissue over the eye‚ but a fogging of the lens itself. There are three types of cataract. They are:- a nuclear cataract- a cortical cataract- a subscapular cataract A nuclear cataract
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the relationship between the speed of sound in air through the pulse-echo experiment and the measured air temperature. Hypothesis: I believe the measured air temperature will affect the speed of sound because sound waves are longitudinal waves composed of the alternating compressions and rarefactions in air. If the air temperature is below 0°C‚ then the speed of sound would be lower than 331.6 m/s and if the air temperature is above 0°C‚ then the speed of sound would be higher than 331.6 m/s. Materials:
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between the fingers of my left hand and a 60kg camouflaged bag on my back‚ I attempted to mentally stop and fight all my instincts which were telling me to run and retreat. The sound of gunfire made me want to turn around and face the noise coming from the other direction. As my aim and torch followed and rose up to the sound‚ it lit a dark alleyway invisible to the naked eye. The gunfire stopped as soon as it started so I took several deep breaths as I panned the small beam of light around the alleyway
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A major campus issue that Charleston Southern University residents are dealing with is the levels of noise in the residence halls. This distraction affects students during their studies‚ sleep and quiet time. Charleston Southern residents were asked in a survey pertaining to the noise levels in the dorms unanimously answered that when studying‚ the noise levels are distracting. When the students were asked on a scale from one to ten‚ (one being that noise does not affect resident’s dorm life
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also called the head‚ contains the diaphragm or bell that vibrates with sound Child - an individual with age ranging from 0-13 years old Countertop - a flat surface on top of a cabinet or display case as in a kitchen. Cuff - a fabric that is wrapped around a patient’s arm Ear Tubes - attach the earpieces to the main body of the stethoscope Earpieces - part of the stethoscope which are placed into the ears and transmit sounds directly into them Elderly - an individual with age ranging from sixty
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This encourages children to listen‚ sing and communicate‚ this can be through using their hands to start off with and eventually hands and singing. Musical instruments can be good for the children to practice repeating different sounds that are made or making the sounds louder or quieter. Blowing bubbles; this activity is good to enable the child to point to different things that the bubbles are hitting‚ they show interest and can start by making simple words such as “gone” when the bubble has burst
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frequency of sound waves‚ was the sense tested during the course of this experiment. The mechanical processes involved in hearing include air vibrations that enter the outer ear and are converted to fluid vibration in the inner ear‚ which are then transduced to electrical signals sent to the brain for interpretation. (Connelly‚ 2014) Any time an object vibrates it creates sound waves that move the air molecules around it causing pressure changes at various speeds presenting as sound waves. The two
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machines cause a lot of noise pollution. Airplanes‚ .. Main causes of noise pollution: Noise is a problem chiefly of the urban area. Loud noise is considered as pollutant. High frequency loud sound‚ creates various kinds of physical and mental problems. The unit of measurement of sound is decibel (dB). Any sound above‚ 80 decibel harms the ciliary cells situate.. Sources of Noise pollution explained below: Domestic gadgets : Mixers‚ pressure cookers‚ washing machines‚ desert coolers‚ generators (as
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