Use ancilla in a sentence. an aid for use as in understanding or accomplishing something; often, specif., a handbook, or manual. Origin of ancilla. see ancillary.
Making the world better, one answer at a time. The accelerometer in mobiles is used to measure the orientation or vertical and horizontal positioning of the phone. The most basic application of this is the device knowing when to alternate the view of the screen depending on how you are holding it.
Ultrasonic pest repellers are electronic devices that emit high-frequency sounds designed to repel, injure or kill household pests, such as rodents and insects. Whether they're actually effective at doing so has been disputed by testing labs and the U.S. Federal Trade Commission (FTC).ltrasonic devices are popular and appealing to consumers because of their ease of use and the fact that they are silent to human ears and allegedly eliminate the need for traps and poison, which are thought by some to be inhumane forms of pest control.