ValerieL.ThomasisanAfricanAmericanscientistandinventorbestknownforherpatented(专利的)illusiontransmitter(幻觉发射器)andcontributionstoNASAresearch.Thomaswasbornin1943inMaryland.Shewasinterestedinscienceasachild.Attheageofeight,hercuriosityabouthowthingsworkedinspiredhertoborrowabookcalledTheBoy'sFirstBookofRadioand...
bluetooth headphone noise cancelling wireless over-ear headphone for helmet earphone bluetooth headset with led lightSKY Fit S Mini Wireless earphone open-ear earbuds BT5.1TX-50RF RF Silent Disco party wireless transmitter built-in RCA connector for silent partyLatest HD Sound Waterproof Neckband Wire...
Digital Small Arms Transmitter Receiver System SATR™ system, Battlefield Sports now supports indoor live gaming even better. SATR has a software-configured indoor mode that radically reduces infrared ricochets. The ability of SATR to perform global digital radio-controlled start, stop, pause, an...
the latter of successive ones of said messages in said sequence at respective time intervals between successive initiations, said time intervals being independent of one another, said initiating means comprising a plurality of spaced transmitter means defining a predetermined path, each transmitter means ...