Old alarm clocks and many doorbells and telephones emit a signal due to the blows of “hammer” metal hemisphere of the bell.
If you are annoying it’s pretty sharp rattling, stick a bell in place of hitting it square of adhesive tape or medical adhesive tape device will beep “whisper”.
.
Recommend to read
UNIVERSAL CART
Simple in design, it may be indispensable in the country due to the fact that will find application both in the home as a serving table on wheels, and on a plot in the garden or on the...
LAND ROVER FREELANDER
English automobile firm ROVER (in translation from English — "Rover") originated from factory, founded in 1877 and manufactures bikes under the same name. My first car — a three-wheeled...
