Aorta Iliac Ultrasound. Ultrasound can be used to image the aorta and iliac arteries to detect medical conditions affecting blood flow. Ultrasound technology is safe and images arteries and veins. There is no radiation or injection of chemicals for this study.
Earwax blockage Sometimes ear wax can harden and block the ear canal, causing discomfort and itching, earache, and more. Acute sinusitis Acute sinusitis, an inflammation of the sinuses, causes sinus pain and tenderness, facial redness and more.
Viktor is a Most Viewed Writer in. Physics. If you could somehow make your eardrums sensitive to changes in the electromagnetic field, then yes, you could easily hear radio waves in the 20Hz - 20kHz range. But your eardrums are not sensitive to changes in the electromagnetic field. So regardless of frequency, your ears are completely blind to radio waves. What your eardrums do sense are changes in air pressure, to which they respond mechanically. These changes in air pressure are what we call sound.