Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Keep out of reach of children.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


                       

Rodent Repellent Screensaver

 Screensaver which will rid your home of rats and other rodents.
  (+2)
(+2) 		  [vote for,
against]

Those of us with particularly good hearing will be aware of the very high-pitched noise which many TVs emit, especially when they are switched on but the screen is black. The frequency of this tone is around 15.5 KHz and is determined by the scan rate of the television.

Ultrasonic pest control products are already on the market. They emit pulses of ultrasound with a frequency around 32 to 62 KHz which rodents find very irritating.

Most computer screens can be set to run at a variety of resolutions and refresh rates. What if a computer screen could be set to generate the precise 32 to 62 KHz sounds which have the power to drive mice and other pests away?

The Rodent Repellent Screensaver does exactly this! While you are not using your PC, the screensaver changes the resolution and refresh rate of your computer monitor and alternates between a blank screen and a white screen to create the necessary pulses of ultrasound. The Rodent Repellent Screensaver could quite possibly be the world's first pest control product to be delivered over the internet, in a matter of seconds.

—thomaswills, Jul 13 2003

(?) Cell phone ring tone repels mosquitos? http://edition.cnn....ll.mosquitoes.reut/
"South Korea's top mobile phone operator is offering a new service that allows cell phone users to download a sound it says repels troublesome mosquitoes." (WTAGIPBAN) [krelnik, Oct 04 2004, last modified Oct 21 2004]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)






       A small monitor?
—Shz, Jul 13 2003
   

       It's good my mouse isn't optical but is on a leash.
—FarmerJohn, Jul 13 2003
   

       Dog repellent?
—RayfordSteele, Jul 13 2003
   

       I'd like proof those ultrasonic pest repellers work.
—phoenix, Jul 13 2003
   

       Also works as an Canadian elephant repellant.
—Cedar Park, Jul 13 2003
   

       newfoundland madness?
—po, Jul 13 2003
   

       Yes, [po], that's when we put the fear of cod in them.
—Cedar Park, Jul 14 2003
   

       Expect a seahorse's head in your bed. That must be what they meant by sleeping with the fishes.
—egbert, Jul 14 2003
   

       //I'd like proof those ultrasonic pest repellers work //   

       In my experience they don't
—madradish, Jul 14 2003
   

       Perhaps madradish has deaf pests.
—egbert, Jul 14 2003
   


 

back: main index
business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle