With aging, my eyes are getting weak, my hearing is getting worse.
The distance that sound travels before it becomes too weak to hear depends on a number of factors, including its frequency and the temperature and humidity of the air: In general, higher frequencies are more quickly stifled in warmer air.
Lyon [ 8] and Mead [ 9] emphasized that the active processes function primarily as an automatic gain control, allowing the amplification of sounds that would otherwise be too weak to hear.
The markets are attacking Greece, its weakest member.Optimists hear the fluttering of good fairies' wings.
He spoke little and appeared weak at a hearing on Tuesday, according to news reports.
As the boatload of priests moved slowly upstream, they heard weak cries for help.
As Manuel was going into the hootch, Mao's sounds could he heard, weak and conquered.
It's only what the strong preach to the weak: you never hear it the other way round; the strong don't lay down their arms.
When I returned to the hospice the next morning, Murray Cutler looked weaker, vaguer, but hearing me speak he became attentive, as though the sound of my voice had woken a memory in him.
Since Friday, South Korea has been blasting anti-Pyongyang propaganda from huge speakers along the border, and the North is using speakers of its own to send messages, although Seoul says they are too weak to be heard clearly on the South Korean side.
