High frequency is any radio frequency in the range of 3 to 30 MHz .
Read moreWhat is an example of a high-frequency?
High-frequency words are those which appear most often in our language – many are also common exception words (e.g. ‘I’, ‘the’, ‘you’ ). Children need to recognize these words by sight, without having to use sounding out strategies, because they occur so frequently in writing.
Read moreWhy are low frequencies harmful?
Some recent epidemiologic studies have suggested that the exposure to extremely low frequency (ELF) electromagnetic fields (EMF) affect human health, because of the incidence of certain types of cancer, depression, and miscarriage have been increased among individuals living or working in environments exposed to such …
Read moreCan low frequency sound waves make you sick?
Observed symptoms of low frequency noise sensitivity are: feelings of irritation, headache, nausea . disorienta- tion, digestive disorders, disturbed or no sleep.
Read moreWhat is a dangerous Hz frequency?
Especially dangerous is infrasound at the frequency of 7 Hz , since this sound, generating frequencies, close to characteristic frequencies of the organs of our body, may disturb the heart or brain activity.
Read moreWhat frequencies are most damaging?
Loss is always greater at the frequencies 3000-6000 Hz than at 500-2000 Hz. Loss is usually greatest at 4000 Hz . The 4000-Hz notch is often preserved even in advanced stages. In stable exposure conditions, losses at 3000, 4000, and 6000 Hz usually reach a maximum level in 10-15 years.
Read moreWhat Hz is best for brain?
6 Hz beat enhances all area of the brain within 10 minutes . 8 Hz and 25 Hz beats have no clearly responses while 40 Hz beat enhances the responses in frontal lobe. These brain responses can be used for brain modulation application to induce the brain activity in further studies.
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