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Search results for "perceive"

A few useful tips for beginner photographers: How people perceive a photographer

Good morning DT, in this short blog I am going to talk about my personal experience as a photographer and offer some tips for people that are starting or thinking about starting a career in photography. Now if you are a pro, it is very probable that you already know this stuff, so you could skip the article, but if you are a newbie, it is possible that you could find something useful. So let's not hesitate and begin with the first tip: 1.Appearances: So to say that it is very important... continue reading

Sound

Sound is vibration transmitted in medium (liquid, gas or solid) and can be percepted by human and animals within certain limits by special organs. Main sound characterisitics are frequency and amplitude.Person can perceive sound in diapason from 16 Hz to 20 000 Hz. Vibration with frequency lower than 16 Hz is infrasound. Sound within limits from 20 000 Hz to 1 GHz is called ultrasound and which is higher than 1 GHz is hypersound.Dogs can percept vibrations higher than 20 kHz. Some species... continue reading

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