CALLING IN A WHISPER

CALL WHISPEROld 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

  • HANGER FOR AN HOURHANGER FOR AN HOUR
    Sheet aluminum or stainless steel and a hacksaw is all that is necessary for making a simple hanger that will fit into the bathroom interior.   Yuri PISKUN, Donetsk
  • “WAGTAIL” IS THE AUTOGYRO FOR THE SUBMARINE“WAGTAIL” IS THE AUTOGYRO FOR THE SUBMARINE
    The first and most important work on the rotating propeller to generate lift forces were made in the period between the world wars. Thus, it was found that the spinning rotor can...