Nodding flowers are best adapted for the long hummingbird beak. Hummingbirds intrigue with their tiny bodies and rapidly fluttering, buzzing wings. They are a joy to watch and planting a garden to attract hummingbirds is rewarding. When planning, there is more to consider than color when choosing plants.
So, while pretty much everyone can hear frequencies of 8,000 Hz, most people over the age of 40 canât hear 15,000 Hz. Note that YouTube has compressed this video so, unfortunately the 19,000 Hz frequency has been lost. But that doesnât matter to me because I didnât come anywhere close to being able to hear it. Sigh. Go and watch the video above to find out how young (or old) your ears really are and prepare to be depressed.
How to Read Your Hearing Test. Hearing is graphed on an audiogram, a graph of the softest sounds you can hear. The graph is laid out like a piano keyboard, with low to high frequencies (low to high pitches) going from left to right, ... and the graph is laid out from soft sounds on the top to loud sounds on the bottom.ormal hearing ranges from 0 to 20 dB in all frequencies. From here on, the assumption is that you have a sensorineural hearing loss (that you have nerve damage to the inner ear). Nerve damage, unless sudden, is permanent. For conductive hearing losses, see your otolaryngologist (your ENT physician).