"Such a device would alter the balance between the two races of this planet."

How, David was asked, did he think this new device would alter the balance of power between adults and teenagers?

Other devices can monitor the performance of the driver and sense if he or she is not paying attention, and alter when and how safety systems operate.

"That device downstairs really can alter the past?"

Besides that, the intrauterine device, or IUD, can alter the lining of the uterus and, in theory, prevent implantation.

Medical devices with built-in biological computers could monitor, or even alter, cell behavior from inside a patient's body.

This device alters the household current that supplies it, transforming it into low-voltage current that passes to the doorbell.

Electrical devices to alter the heart's rhythm with electrical energy.

In theory, such devices could store, alter and combine documents, print them out, fax them and move them among work stations, as well as copy them.

"Before the attack, we were wondering if the device somehow altered the gold of the sarcophagus, transmuted the lining into the white powder."